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FOODS: THEIR
PRINCIPAL
FUNCTIONS AND
ESSENTIAL NUTRIENTS
IN THEM.
ROLE OF DIETARY
FIBER IN HEALTH AND
DISEASE.
MICRO AND MACRO
NUTRIENTS.
DR SINDHU ALMAS
MBBS, MPH , (MHPE),
(PHD)
DEPARTMENT OF
COMMUNITY
MEDICINE & PUBLIC
HEALTH SCIENCES
LUMHS
SETTING RULES
• NO CROSS TALKS
• CELL PHONE ON SILENT
• HAND RAISE IF ANY QUESTION
FOODS:
THEIR
PRINCIPAL
FUNCTION
S AND
ESSENTIAL
NUTRIENT
S IN THEM.
• OUR BODIES ARE BUILT OF AND POWERED BY SOLELY
WHAT WE EAT AND DRINK. FOOD IS THE SOURCE OF
ALL THE ENERGY NEEDED
• WHY DO HUMANS HAVE TO EAT? IS IT JUST BECAUSE
WE GET HUNGRY? THAT IS NOT ALL. PEOPLE GET
ENERGY FROM FOOD. WE NEED ENERGY ALL THE TIME,
WHEN WE RUN, JUMP, SING, AND EVEN WHEN WE SLEEP.
WE CREATE ALL THE ENERGY WE NEED BY EATING.
• THE STRUCTURES COMPONENTS THAT MAKE UP THE
HUMAN BODY, SUCH AS MUSCLES, ORGANS, AND
BONES, ARE ALSO COMPOSED OF THE NUTRIENTS
CONTAINED IN FOOD, MEANING THAT IT IS.
• THUS, EATING AND TAKING IN THE NUTRIENTS THAT
PROVIDE ENERGY AND BECOME THE COMPONENTS OF
OUR BODILY STRUCTURES IS ESSENTIAL TO FOR
SUSTAINING HUMAN LIFE.
4
THE
ROLES OF
THE FIVE
MAJOR
NUTRIENT
S
• NUTRIENTS ARE THE SUBSTANCES FOUND IN FOOD
WHICH DRIVE BIOLOGICAL ACTIVITY AND ARE
ESSENTIAL FOR THE HUMAN BODY. THEY ARE
CATEGORIZED AS PROTEINS, FATS,
CARBOHYDRATES (SUGARS, DIETARY FIBER),
VITAMINS, AND MINERALS, AND PERFORM THE
FOLLOWING VITAL FUNCTIONS.
• 1BUILDING ALL PARTS OF THE BODY SUCH AS
MUSCLE, BONE, TEETH, AND BLOOD
• PRODUCING ENERGY (POWER AND HEAT)
• KEEPING THE BODY IN GOOD WORKING ORDER
5
6
Assignment: NAME 20 AMINO ACIDS, ESSENTIAL AND NON-ESSENTIAL
SEPERATELY.
• PROTEIN IS THE MAIN CONSTITUENT
OF THE BODY, MAKING UP THE
MUSCLES, INTERNAL ORGANS, SKIN,
AND BLOOD, ETC. IF COMPARED TO A
CAR, IT WOULD BE THE MATERIAL
FROM WHICH THE BODY AND ENGINE
ARE MADE. JUST LIKE A CAR CANNOT
BE DRIVEN FAST WITHOUT A SOLID
FRAME, WITHOUT PROTEIN THE
HUMAN BODY CANNOT BE KEPT IN A
HEALTHY STATE. THERE ARE 20 KINDS
OF AMINO ACIDS THAT MAKE UP
PROTEINS, 9 OF WHICH ARE NOT
SYNTHESIZED IN THE BODY, AND ARE
THEREFORE CALLED ESSENTIAL AMINO
ACIDS. THESE ESSENTIAL AMINO
ACIDS MUST BE SUPPLEMENTED FROM
MEALS.
PROTEINS: THE
BUILDING BLOCKS OF
THE BODY
FATS/CARBOHYDRATES (SUGARS): THE BODY'S ENERGY (POWER AND HEAT)
SOURCE
• ALTHOUGH CONSUMING TOO MUCH FAT CAN
LEAD TO OBESITY, SMALL AMOUNTS CAN
PROVIDE A HIGHLY EFFICIENT ENERGY SOURCE
(9KCAL PER GRAM).
• CARBOHYDRATES CAN BE BROKEN DOWN
FURTHER INTO THE TWO CATEGORIES OF
SUGARS AND DIETARY FIBER. SUGARS ARE THE
CARBOHYDRATES WHICH CAN BE USED AS AN
ENERGY SOURCE TO MOVE THE BODY (SUCH AS
DURING EXERCISE) AND ARE STORED IN THE
LIVER AND MUSCLES AS GLYCOGEN.
7
CONT.
• SUGARS ARE ALSO THE MAIN SOURCE OF ENERGY FOR
THE BRAIN. DIETARY FIBER, ON THE OTHER HAND, IS
ALSO KNOWN AS THE SIXTH MAJOR NUTRIENT AND IS
THE INDIGESTIBLE PORTION OF FOOD THAT IS NOT
BROKEN DOWN BY HUMAN DIGESTIVE ENZYMES. IT HELPS
TO INCREASE THE NUMBER OF GOOD BACTERIA IN THE
DIGESTIVE TRACT, MAINTAIN THE BALANCE OF BACTERIA
IN THE INTESTINES, AND AS SUCH IS VERY BENEFICIAL
FOR THE BODY.
• FATS CAN BE FOUND IN ABUNDANCE IN THE FATTY
PORTION OF MEATS AND IN COOKING OILS, AND SUGARS
CAN BE FOUND IN AMPLE QUANTITIES IN GRAINS,
POTATOES, SUGAR, AND FRUIT.
8
VITAMINS/MINERALS: KEEPING THE BODY IN
GOOD WORKING ORDER
• VITAMINS AND MINERALS ARE NOT USED AS ENERGY,
BUT INSTEAD AID IN BREAKING DOWN AND BUILDING UP
PROTEINS, FATS, AND SUGARS, AND ARE AN ESSENTIAL
NUTRIENT FOR KEEPING THE BODY HEALTHY AND IN
GOOD WORKING ORDER.
• “VITAMIN” IS THE GENERAL TERM FOR THE ORGANIC
COMPOUNDS (COMPOUNDS CONTAINING CARBON)
WHICH ARE MOSTLY IMPOSSIBLE FOR THE BODY TO
SYNTHESIZE, AND A LACK OF THESE VITAMINS CAN
POSSIBLY LEAD TO VARIOUS DEFICIENCY-RELATED
DISEASES. VITAMINS CAN BE BROKEN DOWN INTO TWO
CATEGORIES: WATER-SOLUBLE AND FAT-SOLUBLE.
9
• FAT-SOLUBLE VITAMINS (A, D, E, K) DISSOLVE EASILY IN FATS
AND CAN LEAD TO A VITAMIN OVERDOSE IF CONSUMED IN
LARGE AMOUNTS. WATER-SOLUBLE VITAMINS (B VITAMINS, C)
DISSOLVE EASILY IN WATER AND THUS CARRY VERY LITTLE RISK
OF OVERDOSE. VITAMINS CAN BE FOUND IN LARGE AMOUNTS
IN FRUIT AND VEGETABLES.
• “MINERAL,” ALSO REFERRED TO AS INORGANIC MATTER, IS A
GENERAL TERM FOR THE CHEMICAL ELEMENTS WHICH MAKE UP
THE HUMAN BODY EXCLUDING OXYGEN, CARBON, HYDROGEN,
AND NITROGEN. THERE ARE 16 DIFFERENT MINERALS WHICH
ARE NECESSARY FOR THE HUMAN BODY, INCLUDING CALCIUM,
IRON, AND SODIUM, AND THEY CAN BE FOUND IN ABUNDANCE
IN FRUIT, VEGETABLES, SEAWEED, AND MILK/DAIRY PRODUCTS.
10
11
ROLE OF
DIETARY
FIBER IN
HEALTH
AND
DISEASES
• FIBER IS THE STRUCTURAL PART OF
PLANTS AND IS FOUND IN
VEGETABLES, FRUITS, GRAINS AND
LEGUMES. MOST DIETARY FIBERS ARE
POLYSACCHARIDES, LIKE STARCH, BUT
THEY ARE NOT DIGESTIBLE. THE
HUMAN BODY LACKS THE ENZYMES
NEEDED TO DIGEST AND ABSORB
FIBER. AS A RESULT, FIBERS REACH
THE LOWER INTESTINE INTACT WHERE
INTESTINAL BACTERIA CAN FERMENT
SOME FIBER.
12
TYPES OF
FIBER
• THERE ARE MANY DIFFERENT TYPES OF
FIBER, IN GENERAL FIBERS CAN BE
DIVIDED INTO TWO TYPES BASED ON
THEIR PHYSICAL PROPERTIES.
• SOLUBLE FIBERS
• INSOLUBLE FIBERS
13
SOLUBLE
FIBERS
• SOLUBLE FIBERS DISSOLVE IN WATER, FORM GELS AND
ARE EASILY DIGESTED BY BACTERIA IN THE LOWER
INTESTINE. PROVIDES A FEELING OF FULLNESS.
• SLOW DOWN THE RATE FOOD LEAVES THE STOMACH.
• MAY HAVE A ROLE WITH HEART DISEASE, DIABETES
AND COLON CANCER.
• FOUND IN LEGUMES AND FRUITS.
14
INSOLUBLE
FIBER
• INSOLUBLE FIBERS ABSORB WATER AND SWELL UP
RESULTING IN A LARGER SOFTER STOOL THAT IS EASIER
AND QUICKER TO PASS.
• PROVIDES A FEELING OF FULLNESS.
• HELPS WITH INTESTINAL FUNCTION THUS MAY HELP
WITH COLON CANCER.
• FOUND IN GRAINS AND VEGETABLES.
15
FIBER AND
HEALTH,
BOTH FIBER
TYPES ARE
IMPORTAN
T FOR
HEALTH.
• BOTH SOLUBLE AND INSOLUBLE DIETARY FIBERS ARE
IMPORTANT FOR GOOD HEALTH. DIETARY FIBERS
PROVIDE HEALTH BENEFITS FOR MANY CONDITIONS
INCLUDING CONSTIPATION, DIVERTICULAR DISEASE,
HEART DISEASE, DIABETES AND COLON CANCER.
HOWEVER, DIETARY FIBERS ARE ONLY ONE FACTOR
INVOLVED IN THESE CONDITIONS.
16
FIBER AND
INTESTINAL
FUNCTION
• INSOLUBLE FIBERS PROVIDE MANY HEALTH BENEFITS IN
THE DIGESTIVE TRACT. INSOLUBLE FIBERS ABSORB WATER
RESULTING IN A LARGER, SOFTER STOOL THAT IS FASTER
AND EASIER TO ELIMINATE, WHICH CAN HELP WITH
CONSTIPATION AND HEMORRHOIDS.
• DIVERTICULAR DISEASE IS WHERE THERE ARE PROTRUSIONS
OR OUT-POUCHES IN THE WALL OF THE COLON. THESE
POUCHES ARE BELIEVED TO DEVELOP FROM EXCESSIVE
PRESSURE, WHICH WEAKENS THE WALL OF THE COLON. IN
MANY CASES, THERE ARE NO OBVIOUS SYMPTOMS, BUT IN
SOME PEOPLE THE DIVERTICULA BECOME INFLAMED AND
PAINFUL. INSOLUBLE FIBERS MAY HELP PREVENT
DIVERTICULAR DISEASE BY ABSORBING WATER MAKING A
LARGER, SOFTER STOOL THAT REQUIRES LESS PRESSURE
TO MOVE THROUGH THE DIGESTIVE SYSTEM.
17
FIBER AND
COLON
CANCER
• BOTH INSOLUBLE AND SOLUBLE FIBERS MAY PROTECT
AGAINST COLON CANCER INSOLUBLE FIBERS ABSORB
WATER MAKING A LARGER, SOFTER STOOL WHICH CAN:
• DILUTE POTENTIAL CARCINOGENS REDUCE TRANSIT
TIME SO THE COLON IS EXPOSED TO ANY CANCER
CAUSING SUBSTANCE FOR LESS TIME.
• SOLUBLE FIBERS CAN BIND BILE ACIDS, POTENTIAL
CARCINOGENS, AND INCREASE THEIR EXCRETION.
18
FIBER AND
HEART
DISEASE
• SOLUBLE FIBERS MAY HAVE A ROLE IN LOWERING
BLOOD CHOLESTEROL. AS MENTIONED, SOLUBLE FIBERS
CAN BIND TO BILE ACIDS AND INCREASE THEIR
EXCRETION. WITH FEWER BILE ACIDS IN THE INTESTINE,
LESS FAT IS ABSORBED. ALSO, BY INCREASING BILE ACID
EXCRETION, THE LIVER MUST USE ITS CHOLESTEROL TO
MAKE NEW BILE ACIDS.
19
DIABETES:
SOLUBLE
FIBERS MAY
HAVE A
FAVORABLE
EFFECT ON
BLOOD
GLUCOSE.
• SOLUBLE FIBERS MAY HAVE A FAVORABLE EFFECT ON
BLOOD GLUCOSE. SOLUBLE FIBERS DECREASE THE RATE
AT WHICH FOOD IS RELEASED FROM THE STOMACH
AND DELAYS GLUCOSE ABSORPTION INTO THE BLOOD.
THIS MAY HELP PREVENT WIDE SWINGS IN BLOOD
GLUCOSE.
20
FIBER AND
WEIGHT
MANAGEME
NT
• FOODS RICH IN COMPLEX CARBOHYDRATES AND FIBER
TEND TO BE LOW IN FAT AND ADDED SUGARS WHICH
CAN HELP WITH WEIGHT MANAGEMENT BY PROVIDING
FEWER CALORIES. IN ADDITION, AS FIBERS ABSORB
WATER, THEY SWELL UP CREATING A FEELING OF
FULLNESS AND DELAYING HUNGER.
21
HOW MUCH
FIBER
• THE NATIONAL RESEARCH COUNCIL SET A DIETARY
REFERENCE INTAKE (DRI) FOR DIETARY FIBER. AN
ADEQUATE INTAKE (AI) FOR DIETARY FIBER WAS SET AT
14 GRAMS’ DIETARY FIBER PER 1,000 CALORIES. THUS,
FOR A REFERENCE 2,000 CALORIE DIET RECOMMENDED
INTAKE WOULD BE 28 GRAMS PER DAY.
22
TOO
MUCH
FIBER
• DIETARY FIBER CAN BIND SOME MINERALS AND
DECREASE THEIR ABSORPTION. HOWEVER, IF MINERAL
INTAKE IS ADEQUATE A RECOMMENDED DIETARY FIBER
INTAKE WILL NOT COMPROMISE MINERAL BALANCE.
FIBER INTAKE IS LIKE ALL NUTRIENTS IN THAT “MORE” IS
NOT ALWAYS “BETTER.” THE IMPORTANCE OF
CONSUMING A DIET THAT PROVIDES A VARIETY OF
NUTRIENTS IS THE KEY.
23
FOOD
SOURCES
OF FIBER
• FOODS ARE THE BEST WAY TO INCREASE FIBER INTAKE.
FOOD SOURCES OF FIBER INCLUDE FRUITS,
VEGETABLES, WHOLE GRAIN PRODUCTS, LEGUMES,
NUTS AND SEEDS.
• COOKING, PROCESSING, AND REMOVING PEELS CAN
LOWER THE FIBER IN FOODS.
24
25
ASSIGNMEN
T # 2
• 1. ENLIST DEFINITIONS OF FOLLOWING:
• NUTRITION
• CALORIE
• FOOD
• BMI
• 2. WRITE A SHORT NOTE ON ROLE OF DIETARY
FIBER IN COLON CANCER.
• DEADLINE:
26
27
MICRO AND MACRO
NUTRIENTS
• FOOD IS COMPOSED OF A WIDE DISTRIBUTION OF
NUTRIENTS, WHICH HAVE VERY SPECIFIC METABOLIC
EFFECTS ON THE HUMAN BODY.
• TWO CATEGORIES:
• MACRONUTRIENTS
• MICRONUTRIENTS
• SOME OF THESE NUTRIENTS ARE ESSENTIAL WHILE OTHERS
ARE NON-ESSENTIAL.
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
28
MACRONUTRIENTS
• MACRONUTRIENTS CONSTITUTE THE MAJORITY OF
AN INDIVIDUAL’S DIET
• THE ESSENTIAL NUTRIENTS THAT ARE NEEDED
FOR GROWTH AND ENERGY:
• CARBOHYDRATES
• PROTEINS
• FATS
• WATER
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro-nutrient-diet.html
29
MACRONUTRIENTS
• CARBOHYDRATES, PROTEINS, AND FATS ARE INTERCHANGEABLE AS
SOURCES OF ENERGY, WITH FATS YIELDING 9 CALORIES PER GRAM, AND
PROTEIN AND CARBOHYDRATES EACH YIELDING 4 CALORIES PER GRAM.
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
30
• CARBOHYDRATES ARE COMPOSED OF CARBON, HYDROGEN, AND
OXYGEN, AND “CONSTITUTE THE MAIN SOURCE OF ENERGY FOR
ALL BODY FUNCTIONS, PARTICULARLY BRAIN FUNCTIONS, AND
ARE NECESSARY FOR THE METABOLISM OF OTHER NUTRIENTS”
CARBOHYDRATES
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
31
• THE EASIEST FORM OF FOOD TO CONVERT INTO ENERGY ONCE
INGESTED CARBOHYDRATES ARE TURNED INTO GLUCOSE,
WHICH CIRCULATES IN THE BLOODSTREAM BEING READILY
AVAILABLE, AND INTO GLYCOGEN WHICH IS STORED IN THE
LIVER AND MUSCLE CELLS, FOR LATER USE.
CONT.
32
TYPES OF CARBOHYDRATES
• SIMPLE CARBOHYDRATES LIKE THOSE FOUND IN
FRUITS AND PROCESSED SUGARS BREAK DOWN
VERY RAPIDLY IN THE BODY, MAKING THEM A
GOOD SOURCE OF QUICK ENERGY.
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
33
CONT.
• COMPLEX
CARBOHYDRATES LIKE
THOSE FOUND IN RICE,
POTATOES, AND PASTA,
TAKE LONGER TO BREAK
DOWN IN THE BODY, AND
PROVIDE A MORE EVEN
DISTRIBUTION OF ENERGY
OVER A LONGER PERIOD.
34
35
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
• PROTEINS ARE LARGE COMBINATIONS OF
AMINO ACIDS CONTAINING THE ELEMENTS
CARBON, HYDROGEN, NITROGEN, AND
OXYGEN, AND IS THE MAJOR SOURCE OF
BUILDING MATERIALS FOR MUSCLES,
BLOOD, SKIN, HAIR, NAILS, AND INTERNAL
ORGAN
PROTEIN
36
• PROTEINS ARE USED BY THE BODY TO
BUILD, REPAIR, AND MAINTAIN MUSCLE
TISSUE.
• ONCE INGESTED PROTEIN IS BROKEN DOWN
INTO PEPTIDES AND AMINO ACIDS WHICH
ARE VITAL FOR PROPER GROWTH,
DEVELOPMENT, AND MAINTENANCE OF
HEALTH.
CONT.
• COMPLETE
• SOURCES: MEAT, POULTRY, FISH, EGGS, MILK, CHEESE
• INCOMPLETE
• SOURCES: NUTS, LEGUMES
PROTEIN CATEGORIES
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
37
38
FAT
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
39
composed of carbon, hydrogen, and
oxygen (these elements are connected
together differently than in
carbohydrates
provide 3 primary functions:
they are the major source of stored
energy for the body
CONT.
40
they serve to cushion and protect
the major organs
they act as an insulator,
preserving body heat, and
protecting against excessive cold.
TYPES OF
FAT
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
41
Once ingested fats are broken down into fatty acids and
glycerol, and are divided into 3 different categories:
simple fats (triglycerides)
compound fats (phospholipids, glycolipids, and
lipoproteins)
derived fats (cholesterol).
CONT.
42
Fats are also further classified as:
saturated
unsaturated
polyunsaturated
SATURAT
ED FATS
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
43
Saturated fats are used by the liver to
manufacture cholesterol. Cholesterol, is a
member of a group of lipids called sterols,
and is found only in animal tissues.
Cholesterol is important in that it acts as a
precursor for the synthesis of various
steroid hormones and vitamin D in the
body.
CONT.
44
High levels of saturated fat can significantly
raise one’s levels of low-density lipoprotein
cholesterol (LDL’S, bad cholesterol) which is
associated with atherosclerosis (hardening of
the arteries).
Saturated fats can be found in the foods such
as: beef, lamb, pork, chicken, shellfish, egg
yolks, milk, cheese, butter, and chocolate.
POLYUNSATURAT
ED FATS
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
45
Polyunsaturated fats will lower your blood
cholesterol level.
Polyunsaturated fats will lower both your low-
density lipoprotein cholesterol (LDL’S, bad
cholesterol), as well as, lowering your high-
density lipoprotein cholesterol (HDL’S, good
cholesterol).
CONT.
• POLYUNSATURATED FATS CAN BE FOUND IN
FOODS SUCH AS: ALMONDS, PECANS, SUNFLOWER
OIL, CORN OIL, FISH, MAYONNAISE, SAFFLOWER
OIL, SOYBEAN OIL, WALNUTS AND IN MOST
MARGARINES.
46
UNSATURATED FATS
• UNSATURATED FATS WILL LOWER YOUR LDL’S
(BAD CHOLESTEROL) WITHOUT AFFECTING YOUR
HDL’S (GOOD CHOLESTEROL) MAKING THEM THE
HEALTHIEST OF POSSIBLE FAT SOURCES IN THE
DIET.
• UNSATURATED FATS CAN BE FOUND IN THE
FOODS SUCH AS: AVOCADOS, CASHEWS, OLIVES,
OLIVE OIL, PEANUTS, PEANUT OIL, AND PEANUT
BUTTER.
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
47
48
WATER
• WATER IS A KEY ESSENTIAL TO A HEALTHY BODY.
THE BODY IS ROUGHLY 60% WATER.
• AN AVERAGE PERSON NEEDS ABOUT 8 CUPS OF
WATER PER DAY DEPENDING ON THEIR ACTIVITY
LEVELS.
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
49
CONT.
• TYPICALLY, THE THIRST MECHANISM IS NOT A
GOOD SIGN TO INDICATE WHEN THE BODY NEEDS
WATER. THIS MECHANISM IS ACTIVATED WHEN
DEHYDRATION HAS ALREADY OCCURRED.
• DEHYDRATION CAN LEAD TO HEAT ILLNESSES
SUCH AS HEAT EXHAUSTION AND HEAT STROKE
BECAUSE OF THE INABILITY TO SWEAT. IT ALSO
CAN CAUSE ELECTROLYTE IMBALANCE AND
MALFUNCTION OF THE BODY SYSTEMS. THIS CAN
LEAD TO DECREASES IN ENERGY AND
PERFORMANCE.
50
MICRONUTRIENTS
• MICRONUTRIENTS ARE VITAMINS AND TRACE
MINERALS.
• VITAMINS AND TRACE MINERALS ARE LABELED AS
MICRONUTRIENTS BECAUSE THE BODY ONLY
REQUIRES THEM IN VERY SMALL AMOUNTS.
• VITAMINS ARE ORGANIC SUBSTANCES THAT WE
INGEST WITH OUR FOODS, AND THAT THAT HELP
TO TRIGGER OTHER REACTIONS IN THE BODY
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
51
MICRONUTRIENTS
• ALTHOUGH, MICRONUTRIENTS ARE NEEDED ONLY
IN SMALL AMOUNTS, THEIR DEFICIENCY LEADS
TO CRITICAL HEALTH PROBLEMS.
• IN FACT, MOST OF THE DISEASES AND
CONDITIONS THAT PEOPLE FACE TODAY ARE DUE
TO DEFICIENCY OF MICRONUTRIENTS.
• THE WORLD HEALTH ORGANIZATION (WHO) SAYS
THAT IF WE ENSURE ELIMINATION OF
MICRONUTRIENT DEFICIENCY, LABOR EFFICIENCY
WILL INCREASE MULTIFOLD.
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
52
LIST OF
MICRONUTRIENTS
• VITAMINS
• VITAMIN A, VITAMIN B, VITAMIN C, VITAMIN D,
VITAMIN E, VITAMIN K AND CAROTENOIDS.
• MINERALS
53
CONT.
• BORON, CALCIUM, CHLORIDE, CHROMIUM,
COBALT, COPPER, FLUORIDE, IODINE, IRON,
MAGNESIUM, MANGANESE, MOLYBDENUM,
PHOSPHOROUS, POTASSIUM, SELENIUM, SODIUM
AND ZINC.
• ORGANIC ACIDS
• ACETIC ACID, CITRIC ACID, LACTIC ACID, MALIC
ACID, CHOLINE AND TAURINE.
54
SUPERFOODS
• WHAT IS A “SUPERFOOD”
• FOODS WHOSE NUTRITIONAL CONTENT IS SO
POWERFUL AND THE BENEFITS OF EATING THEM
SO FAR-REACHING.
Sources: www.questformuscle.com/articles.html
http://www.instah.com/diet/macronutrients-and-micronutrients
http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients
http://www.perfectvitamin.com/macro- nutrient-diet. html
55
CONT.
• THEY PROVEN TO CONTAIN VITAMINS, MINERALS
AND OTHER NUTRIENTS THAT PREVENT DISEASE
- FROM CANCER AND HEART DISEASE TO
ARTHRITIS, EYE DISEASES AND MANY MORE.
56
57
58

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lecture 3-15092022-Nutrition.pptx

  • 1.
  • 2. FOODS: THEIR PRINCIPAL FUNCTIONS AND ESSENTIAL NUTRIENTS IN THEM. ROLE OF DIETARY FIBER IN HEALTH AND DISEASE. MICRO AND MACRO NUTRIENTS. DR SINDHU ALMAS MBBS, MPH , (MHPE), (PHD) DEPARTMENT OF COMMUNITY MEDICINE & PUBLIC HEALTH SCIENCES LUMHS
  • 3. SETTING RULES • NO CROSS TALKS • CELL PHONE ON SILENT • HAND RAISE IF ANY QUESTION
  • 4. FOODS: THEIR PRINCIPAL FUNCTION S AND ESSENTIAL NUTRIENT S IN THEM. • OUR BODIES ARE BUILT OF AND POWERED BY SOLELY WHAT WE EAT AND DRINK. FOOD IS THE SOURCE OF ALL THE ENERGY NEEDED • WHY DO HUMANS HAVE TO EAT? IS IT JUST BECAUSE WE GET HUNGRY? THAT IS NOT ALL. PEOPLE GET ENERGY FROM FOOD. WE NEED ENERGY ALL THE TIME, WHEN WE RUN, JUMP, SING, AND EVEN WHEN WE SLEEP. WE CREATE ALL THE ENERGY WE NEED BY EATING. • THE STRUCTURES COMPONENTS THAT MAKE UP THE HUMAN BODY, SUCH AS MUSCLES, ORGANS, AND BONES, ARE ALSO COMPOSED OF THE NUTRIENTS CONTAINED IN FOOD, MEANING THAT IT IS. • THUS, EATING AND TAKING IN THE NUTRIENTS THAT PROVIDE ENERGY AND BECOME THE COMPONENTS OF OUR BODILY STRUCTURES IS ESSENTIAL TO FOR SUSTAINING HUMAN LIFE. 4
  • 5. THE ROLES OF THE FIVE MAJOR NUTRIENT S • NUTRIENTS ARE THE SUBSTANCES FOUND IN FOOD WHICH DRIVE BIOLOGICAL ACTIVITY AND ARE ESSENTIAL FOR THE HUMAN BODY. THEY ARE CATEGORIZED AS PROTEINS, FATS, CARBOHYDRATES (SUGARS, DIETARY FIBER), VITAMINS, AND MINERALS, AND PERFORM THE FOLLOWING VITAL FUNCTIONS. • 1BUILDING ALL PARTS OF THE BODY SUCH AS MUSCLE, BONE, TEETH, AND BLOOD • PRODUCING ENERGY (POWER AND HEAT) • KEEPING THE BODY IN GOOD WORKING ORDER 5
  • 6. 6 Assignment: NAME 20 AMINO ACIDS, ESSENTIAL AND NON-ESSENTIAL SEPERATELY. • PROTEIN IS THE MAIN CONSTITUENT OF THE BODY, MAKING UP THE MUSCLES, INTERNAL ORGANS, SKIN, AND BLOOD, ETC. IF COMPARED TO A CAR, IT WOULD BE THE MATERIAL FROM WHICH THE BODY AND ENGINE ARE MADE. JUST LIKE A CAR CANNOT BE DRIVEN FAST WITHOUT A SOLID FRAME, WITHOUT PROTEIN THE HUMAN BODY CANNOT BE KEPT IN A HEALTHY STATE. THERE ARE 20 KINDS OF AMINO ACIDS THAT MAKE UP PROTEINS, 9 OF WHICH ARE NOT SYNTHESIZED IN THE BODY, AND ARE THEREFORE CALLED ESSENTIAL AMINO ACIDS. THESE ESSENTIAL AMINO ACIDS MUST BE SUPPLEMENTED FROM MEALS. PROTEINS: THE BUILDING BLOCKS OF THE BODY
  • 7. FATS/CARBOHYDRATES (SUGARS): THE BODY'S ENERGY (POWER AND HEAT) SOURCE • ALTHOUGH CONSUMING TOO MUCH FAT CAN LEAD TO OBESITY, SMALL AMOUNTS CAN PROVIDE A HIGHLY EFFICIENT ENERGY SOURCE (9KCAL PER GRAM). • CARBOHYDRATES CAN BE BROKEN DOWN FURTHER INTO THE TWO CATEGORIES OF SUGARS AND DIETARY FIBER. SUGARS ARE THE CARBOHYDRATES WHICH CAN BE USED AS AN ENERGY SOURCE TO MOVE THE BODY (SUCH AS DURING EXERCISE) AND ARE STORED IN THE LIVER AND MUSCLES AS GLYCOGEN. 7
  • 8. CONT. • SUGARS ARE ALSO THE MAIN SOURCE OF ENERGY FOR THE BRAIN. DIETARY FIBER, ON THE OTHER HAND, IS ALSO KNOWN AS THE SIXTH MAJOR NUTRIENT AND IS THE INDIGESTIBLE PORTION OF FOOD THAT IS NOT BROKEN DOWN BY HUMAN DIGESTIVE ENZYMES. IT HELPS TO INCREASE THE NUMBER OF GOOD BACTERIA IN THE DIGESTIVE TRACT, MAINTAIN THE BALANCE OF BACTERIA IN THE INTESTINES, AND AS SUCH IS VERY BENEFICIAL FOR THE BODY. • FATS CAN BE FOUND IN ABUNDANCE IN THE FATTY PORTION OF MEATS AND IN COOKING OILS, AND SUGARS CAN BE FOUND IN AMPLE QUANTITIES IN GRAINS, POTATOES, SUGAR, AND FRUIT. 8
  • 9. VITAMINS/MINERALS: KEEPING THE BODY IN GOOD WORKING ORDER • VITAMINS AND MINERALS ARE NOT USED AS ENERGY, BUT INSTEAD AID IN BREAKING DOWN AND BUILDING UP PROTEINS, FATS, AND SUGARS, AND ARE AN ESSENTIAL NUTRIENT FOR KEEPING THE BODY HEALTHY AND IN GOOD WORKING ORDER. • “VITAMIN” IS THE GENERAL TERM FOR THE ORGANIC COMPOUNDS (COMPOUNDS CONTAINING CARBON) WHICH ARE MOSTLY IMPOSSIBLE FOR THE BODY TO SYNTHESIZE, AND A LACK OF THESE VITAMINS CAN POSSIBLY LEAD TO VARIOUS DEFICIENCY-RELATED DISEASES. VITAMINS CAN BE BROKEN DOWN INTO TWO CATEGORIES: WATER-SOLUBLE AND FAT-SOLUBLE. 9
  • 10. • FAT-SOLUBLE VITAMINS (A, D, E, K) DISSOLVE EASILY IN FATS AND CAN LEAD TO A VITAMIN OVERDOSE IF CONSUMED IN LARGE AMOUNTS. WATER-SOLUBLE VITAMINS (B VITAMINS, C) DISSOLVE EASILY IN WATER AND THUS CARRY VERY LITTLE RISK OF OVERDOSE. VITAMINS CAN BE FOUND IN LARGE AMOUNTS IN FRUIT AND VEGETABLES. • “MINERAL,” ALSO REFERRED TO AS INORGANIC MATTER, IS A GENERAL TERM FOR THE CHEMICAL ELEMENTS WHICH MAKE UP THE HUMAN BODY EXCLUDING OXYGEN, CARBON, HYDROGEN, AND NITROGEN. THERE ARE 16 DIFFERENT MINERALS WHICH ARE NECESSARY FOR THE HUMAN BODY, INCLUDING CALCIUM, IRON, AND SODIUM, AND THEY CAN BE FOUND IN ABUNDANCE IN FRUIT, VEGETABLES, SEAWEED, AND MILK/DAIRY PRODUCTS. 10
  • 11. 11
  • 12. ROLE OF DIETARY FIBER IN HEALTH AND DISEASES • FIBER IS THE STRUCTURAL PART OF PLANTS AND IS FOUND IN VEGETABLES, FRUITS, GRAINS AND LEGUMES. MOST DIETARY FIBERS ARE POLYSACCHARIDES, LIKE STARCH, BUT THEY ARE NOT DIGESTIBLE. THE HUMAN BODY LACKS THE ENZYMES NEEDED TO DIGEST AND ABSORB FIBER. AS A RESULT, FIBERS REACH THE LOWER INTESTINE INTACT WHERE INTESTINAL BACTERIA CAN FERMENT SOME FIBER. 12
  • 13. TYPES OF FIBER • THERE ARE MANY DIFFERENT TYPES OF FIBER, IN GENERAL FIBERS CAN BE DIVIDED INTO TWO TYPES BASED ON THEIR PHYSICAL PROPERTIES. • SOLUBLE FIBERS • INSOLUBLE FIBERS 13
  • 14. SOLUBLE FIBERS • SOLUBLE FIBERS DISSOLVE IN WATER, FORM GELS AND ARE EASILY DIGESTED BY BACTERIA IN THE LOWER INTESTINE. PROVIDES A FEELING OF FULLNESS. • SLOW DOWN THE RATE FOOD LEAVES THE STOMACH. • MAY HAVE A ROLE WITH HEART DISEASE, DIABETES AND COLON CANCER. • FOUND IN LEGUMES AND FRUITS. 14
  • 15. INSOLUBLE FIBER • INSOLUBLE FIBERS ABSORB WATER AND SWELL UP RESULTING IN A LARGER SOFTER STOOL THAT IS EASIER AND QUICKER TO PASS. • PROVIDES A FEELING OF FULLNESS. • HELPS WITH INTESTINAL FUNCTION THUS MAY HELP WITH COLON CANCER. • FOUND IN GRAINS AND VEGETABLES. 15
  • 16. FIBER AND HEALTH, BOTH FIBER TYPES ARE IMPORTAN T FOR HEALTH. • BOTH SOLUBLE AND INSOLUBLE DIETARY FIBERS ARE IMPORTANT FOR GOOD HEALTH. DIETARY FIBERS PROVIDE HEALTH BENEFITS FOR MANY CONDITIONS INCLUDING CONSTIPATION, DIVERTICULAR DISEASE, HEART DISEASE, DIABETES AND COLON CANCER. HOWEVER, DIETARY FIBERS ARE ONLY ONE FACTOR INVOLVED IN THESE CONDITIONS. 16
  • 17. FIBER AND INTESTINAL FUNCTION • INSOLUBLE FIBERS PROVIDE MANY HEALTH BENEFITS IN THE DIGESTIVE TRACT. INSOLUBLE FIBERS ABSORB WATER RESULTING IN A LARGER, SOFTER STOOL THAT IS FASTER AND EASIER TO ELIMINATE, WHICH CAN HELP WITH CONSTIPATION AND HEMORRHOIDS. • DIVERTICULAR DISEASE IS WHERE THERE ARE PROTRUSIONS OR OUT-POUCHES IN THE WALL OF THE COLON. THESE POUCHES ARE BELIEVED TO DEVELOP FROM EXCESSIVE PRESSURE, WHICH WEAKENS THE WALL OF THE COLON. IN MANY CASES, THERE ARE NO OBVIOUS SYMPTOMS, BUT IN SOME PEOPLE THE DIVERTICULA BECOME INFLAMED AND PAINFUL. INSOLUBLE FIBERS MAY HELP PREVENT DIVERTICULAR DISEASE BY ABSORBING WATER MAKING A LARGER, SOFTER STOOL THAT REQUIRES LESS PRESSURE TO MOVE THROUGH THE DIGESTIVE SYSTEM. 17
  • 18. FIBER AND COLON CANCER • BOTH INSOLUBLE AND SOLUBLE FIBERS MAY PROTECT AGAINST COLON CANCER INSOLUBLE FIBERS ABSORB WATER MAKING A LARGER, SOFTER STOOL WHICH CAN: • DILUTE POTENTIAL CARCINOGENS REDUCE TRANSIT TIME SO THE COLON IS EXPOSED TO ANY CANCER CAUSING SUBSTANCE FOR LESS TIME. • SOLUBLE FIBERS CAN BIND BILE ACIDS, POTENTIAL CARCINOGENS, AND INCREASE THEIR EXCRETION. 18
  • 19. FIBER AND HEART DISEASE • SOLUBLE FIBERS MAY HAVE A ROLE IN LOWERING BLOOD CHOLESTEROL. AS MENTIONED, SOLUBLE FIBERS CAN BIND TO BILE ACIDS AND INCREASE THEIR EXCRETION. WITH FEWER BILE ACIDS IN THE INTESTINE, LESS FAT IS ABSORBED. ALSO, BY INCREASING BILE ACID EXCRETION, THE LIVER MUST USE ITS CHOLESTEROL TO MAKE NEW BILE ACIDS. 19
  • 20. DIABETES: SOLUBLE FIBERS MAY HAVE A FAVORABLE EFFECT ON BLOOD GLUCOSE. • SOLUBLE FIBERS MAY HAVE A FAVORABLE EFFECT ON BLOOD GLUCOSE. SOLUBLE FIBERS DECREASE THE RATE AT WHICH FOOD IS RELEASED FROM THE STOMACH AND DELAYS GLUCOSE ABSORPTION INTO THE BLOOD. THIS MAY HELP PREVENT WIDE SWINGS IN BLOOD GLUCOSE. 20
  • 21. FIBER AND WEIGHT MANAGEME NT • FOODS RICH IN COMPLEX CARBOHYDRATES AND FIBER TEND TO BE LOW IN FAT AND ADDED SUGARS WHICH CAN HELP WITH WEIGHT MANAGEMENT BY PROVIDING FEWER CALORIES. IN ADDITION, AS FIBERS ABSORB WATER, THEY SWELL UP CREATING A FEELING OF FULLNESS AND DELAYING HUNGER. 21
  • 22. HOW MUCH FIBER • THE NATIONAL RESEARCH COUNCIL SET A DIETARY REFERENCE INTAKE (DRI) FOR DIETARY FIBER. AN ADEQUATE INTAKE (AI) FOR DIETARY FIBER WAS SET AT 14 GRAMS’ DIETARY FIBER PER 1,000 CALORIES. THUS, FOR A REFERENCE 2,000 CALORIE DIET RECOMMENDED INTAKE WOULD BE 28 GRAMS PER DAY. 22
  • 23. TOO MUCH FIBER • DIETARY FIBER CAN BIND SOME MINERALS AND DECREASE THEIR ABSORPTION. HOWEVER, IF MINERAL INTAKE IS ADEQUATE A RECOMMENDED DIETARY FIBER INTAKE WILL NOT COMPROMISE MINERAL BALANCE. FIBER INTAKE IS LIKE ALL NUTRIENTS IN THAT “MORE” IS NOT ALWAYS “BETTER.” THE IMPORTANCE OF CONSUMING A DIET THAT PROVIDES A VARIETY OF NUTRIENTS IS THE KEY. 23
  • 24. FOOD SOURCES OF FIBER • FOODS ARE THE BEST WAY TO INCREASE FIBER INTAKE. FOOD SOURCES OF FIBER INCLUDE FRUITS, VEGETABLES, WHOLE GRAIN PRODUCTS, LEGUMES, NUTS AND SEEDS. • COOKING, PROCESSING, AND REMOVING PEELS CAN LOWER THE FIBER IN FOODS. 24
  • 25. 25
  • 26. ASSIGNMEN T # 2 • 1. ENLIST DEFINITIONS OF FOLLOWING: • NUTRITION • CALORIE • FOOD • BMI • 2. WRITE A SHORT NOTE ON ROLE OF DIETARY FIBER IN COLON CANCER. • DEADLINE: 26
  • 27. 27
  • 28. MICRO AND MACRO NUTRIENTS • FOOD IS COMPOSED OF A WIDE DISTRIBUTION OF NUTRIENTS, WHICH HAVE VERY SPECIFIC METABOLIC EFFECTS ON THE HUMAN BODY. • TWO CATEGORIES: • MACRONUTRIENTS • MICRONUTRIENTS • SOME OF THESE NUTRIENTS ARE ESSENTIAL WHILE OTHERS ARE NON-ESSENTIAL. Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 28
  • 29. MACRONUTRIENTS • MACRONUTRIENTS CONSTITUTE THE MAJORITY OF AN INDIVIDUAL’S DIET • THE ESSENTIAL NUTRIENTS THAT ARE NEEDED FOR GROWTH AND ENERGY: • CARBOHYDRATES • PROTEINS • FATS • WATER Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro-nutrient-diet.html 29
  • 30. MACRONUTRIENTS • CARBOHYDRATES, PROTEINS, AND FATS ARE INTERCHANGEABLE AS SOURCES OF ENERGY, WITH FATS YIELDING 9 CALORIES PER GRAM, AND PROTEIN AND CARBOHYDRATES EACH YIELDING 4 CALORIES PER GRAM. Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 30
  • 31. • CARBOHYDRATES ARE COMPOSED OF CARBON, HYDROGEN, AND OXYGEN, AND “CONSTITUTE THE MAIN SOURCE OF ENERGY FOR ALL BODY FUNCTIONS, PARTICULARLY BRAIN FUNCTIONS, AND ARE NECESSARY FOR THE METABOLISM OF OTHER NUTRIENTS” CARBOHYDRATES Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 31
  • 32. • THE EASIEST FORM OF FOOD TO CONVERT INTO ENERGY ONCE INGESTED CARBOHYDRATES ARE TURNED INTO GLUCOSE, WHICH CIRCULATES IN THE BLOODSTREAM BEING READILY AVAILABLE, AND INTO GLYCOGEN WHICH IS STORED IN THE LIVER AND MUSCLE CELLS, FOR LATER USE. CONT. 32
  • 33. TYPES OF CARBOHYDRATES • SIMPLE CARBOHYDRATES LIKE THOSE FOUND IN FRUITS AND PROCESSED SUGARS BREAK DOWN VERY RAPIDLY IN THE BODY, MAKING THEM A GOOD SOURCE OF QUICK ENERGY. Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 33
  • 34. CONT. • COMPLEX CARBOHYDRATES LIKE THOSE FOUND IN RICE, POTATOES, AND PASTA, TAKE LONGER TO BREAK DOWN IN THE BODY, AND PROVIDE A MORE EVEN DISTRIBUTION OF ENERGY OVER A LONGER PERIOD. 34
  • 35. 35 Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html • PROTEINS ARE LARGE COMBINATIONS OF AMINO ACIDS CONTAINING THE ELEMENTS CARBON, HYDROGEN, NITROGEN, AND OXYGEN, AND IS THE MAJOR SOURCE OF BUILDING MATERIALS FOR MUSCLES, BLOOD, SKIN, HAIR, NAILS, AND INTERNAL ORGAN PROTEIN
  • 36. 36 • PROTEINS ARE USED BY THE BODY TO BUILD, REPAIR, AND MAINTAIN MUSCLE TISSUE. • ONCE INGESTED PROTEIN IS BROKEN DOWN INTO PEPTIDES AND AMINO ACIDS WHICH ARE VITAL FOR PROPER GROWTH, DEVELOPMENT, AND MAINTENANCE OF HEALTH. CONT.
  • 37. • COMPLETE • SOURCES: MEAT, POULTRY, FISH, EGGS, MILK, CHEESE • INCOMPLETE • SOURCES: NUTS, LEGUMES PROTEIN CATEGORIES Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 37
  • 38. 38
  • 39. FAT Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 39 composed of carbon, hydrogen, and oxygen (these elements are connected together differently than in carbohydrates provide 3 primary functions: they are the major source of stored energy for the body
  • 40. CONT. 40 they serve to cushion and protect the major organs they act as an insulator, preserving body heat, and protecting against excessive cold.
  • 41. TYPES OF FAT Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 41 Once ingested fats are broken down into fatty acids and glycerol, and are divided into 3 different categories: simple fats (triglycerides) compound fats (phospholipids, glycolipids, and lipoproteins) derived fats (cholesterol).
  • 42. CONT. 42 Fats are also further classified as: saturated unsaturated polyunsaturated
  • 43. SATURAT ED FATS Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 43 Saturated fats are used by the liver to manufacture cholesterol. Cholesterol, is a member of a group of lipids called sterols, and is found only in animal tissues. Cholesterol is important in that it acts as a precursor for the synthesis of various steroid hormones and vitamin D in the body.
  • 44. CONT. 44 High levels of saturated fat can significantly raise one’s levels of low-density lipoprotein cholesterol (LDL’S, bad cholesterol) which is associated with atherosclerosis (hardening of the arteries). Saturated fats can be found in the foods such as: beef, lamb, pork, chicken, shellfish, egg yolks, milk, cheese, butter, and chocolate.
  • 45. POLYUNSATURAT ED FATS Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 45 Polyunsaturated fats will lower your blood cholesterol level. Polyunsaturated fats will lower both your low- density lipoprotein cholesterol (LDL’S, bad cholesterol), as well as, lowering your high- density lipoprotein cholesterol (HDL’S, good cholesterol).
  • 46. CONT. • POLYUNSATURATED FATS CAN BE FOUND IN FOODS SUCH AS: ALMONDS, PECANS, SUNFLOWER OIL, CORN OIL, FISH, MAYONNAISE, SAFFLOWER OIL, SOYBEAN OIL, WALNUTS AND IN MOST MARGARINES. 46
  • 47. UNSATURATED FATS • UNSATURATED FATS WILL LOWER YOUR LDL’S (BAD CHOLESTEROL) WITHOUT AFFECTING YOUR HDL’S (GOOD CHOLESTEROL) MAKING THEM THE HEALTHIEST OF POSSIBLE FAT SOURCES IN THE DIET. • UNSATURATED FATS CAN BE FOUND IN THE FOODS SUCH AS: AVOCADOS, CASHEWS, OLIVES, OLIVE OIL, PEANUTS, PEANUT OIL, AND PEANUT BUTTER. Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 47
  • 48. 48
  • 49. WATER • WATER IS A KEY ESSENTIAL TO A HEALTHY BODY. THE BODY IS ROUGHLY 60% WATER. • AN AVERAGE PERSON NEEDS ABOUT 8 CUPS OF WATER PER DAY DEPENDING ON THEIR ACTIVITY LEVELS. Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 49
  • 50. CONT. • TYPICALLY, THE THIRST MECHANISM IS NOT A GOOD SIGN TO INDICATE WHEN THE BODY NEEDS WATER. THIS MECHANISM IS ACTIVATED WHEN DEHYDRATION HAS ALREADY OCCURRED. • DEHYDRATION CAN LEAD TO HEAT ILLNESSES SUCH AS HEAT EXHAUSTION AND HEAT STROKE BECAUSE OF THE INABILITY TO SWEAT. IT ALSO CAN CAUSE ELECTROLYTE IMBALANCE AND MALFUNCTION OF THE BODY SYSTEMS. THIS CAN LEAD TO DECREASES IN ENERGY AND PERFORMANCE. 50
  • 51. MICRONUTRIENTS • MICRONUTRIENTS ARE VITAMINS AND TRACE MINERALS. • VITAMINS AND TRACE MINERALS ARE LABELED AS MICRONUTRIENTS BECAUSE THE BODY ONLY REQUIRES THEM IN VERY SMALL AMOUNTS. • VITAMINS ARE ORGANIC SUBSTANCES THAT WE INGEST WITH OUR FOODS, AND THAT THAT HELP TO TRIGGER OTHER REACTIONS IN THE BODY Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 51
  • 52. MICRONUTRIENTS • ALTHOUGH, MICRONUTRIENTS ARE NEEDED ONLY IN SMALL AMOUNTS, THEIR DEFICIENCY LEADS TO CRITICAL HEALTH PROBLEMS. • IN FACT, MOST OF THE DISEASES AND CONDITIONS THAT PEOPLE FACE TODAY ARE DUE TO DEFICIENCY OF MICRONUTRIENTS. • THE WORLD HEALTH ORGANIZATION (WHO) SAYS THAT IF WE ENSURE ELIMINATION OF MICRONUTRIENT DEFICIENCY, LABOR EFFICIENCY WILL INCREASE MULTIFOLD. Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 52
  • 53. LIST OF MICRONUTRIENTS • VITAMINS • VITAMIN A, VITAMIN B, VITAMIN C, VITAMIN D, VITAMIN E, VITAMIN K AND CAROTENOIDS. • MINERALS 53
  • 54. CONT. • BORON, CALCIUM, CHLORIDE, CHROMIUM, COBALT, COPPER, FLUORIDE, IODINE, IRON, MAGNESIUM, MANGANESE, MOLYBDENUM, PHOSPHOROUS, POTASSIUM, SELENIUM, SODIUM AND ZINC. • ORGANIC ACIDS • ACETIC ACID, CITRIC ACID, LACTIC ACID, MALIC ACID, CHOLINE AND TAURINE. 54
  • 55. SUPERFOODS • WHAT IS A “SUPERFOOD” • FOODS WHOSE NUTRITIONAL CONTENT IS SO POWERFUL AND THE BENEFITS OF EATING THEM SO FAR-REACHING. Sources: www.questformuscle.com/articles.html http://www.instah.com/diet/macronutrients-and-micronutrients http://diet.ygoy.com/2009/06/19/micronutrients-and-macronutrients http://www.perfectvitamin.com/macro- nutrient-diet. html 55
  • 56. CONT. • THEY PROVEN TO CONTAIN VITAMINS, MINERALS AND OTHER NUTRIENTS THAT PREVENT DISEASE - FROM CANCER AND HEART DISEASE TO ARTHRITIS, EYE DISEASES AND MANY MORE. 56
  • 57. 57
  • 58. 58