This document provides information on vitamins and minerals, including their functions, sources, and effects of deficiencies. It discusses that vitamins are micronutrients needed in small amounts that are classified as either water-soluble or fat-soluble. Major minerals like calcium and phosphorus and trace minerals like iron and iodine are also outlined. The roles of specific vitamins A, D, E, K, B1-3, B9, C and minerals iron, calcium, phosphorus, sodium, potassium, zinc, and iodine are summarized. Fortification of foods is described as an effective public health strategy to prevent deficiencies.
Describes about the importance of vitamins in our daily activities , classification of vitamins,various sources of vitamins and also about the problems which occurs due to the deficiency of vitamins.
B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism. Though these vitamins share similar names, research shows that they are chemically distinct vitamins that often coexist in the same foods. In general, supplements containing all eight are referred to as a vitamin B complex. Individual B vitamin supplements are referred to by the specific name of each vitamin (e.g., B1, B2, B3 etc.).
Describes about the importance of vitamins in our daily activities , classification of vitamins,various sources of vitamins and also about the problems which occurs due to the deficiency of vitamins.
B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism. Though these vitamins share similar names, research shows that they are chemically distinct vitamins that often coexist in the same foods. In general, supplements containing all eight are referred to as a vitamin B complex. Individual B vitamin supplements are referred to by the specific name of each vitamin (e.g., B1, B2, B3 etc.).
Chemistry of Vitamin E, Biochemical role of Vitamin E, Recommended dietary Allowances, Dietary sources of Vitamin E, Deficiency symptoms of vitamin E, Hypervitaminosis of vitamin E, Toxicity of Vitamin E,
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Vitamin D - Chemistry,n Metabloism, Biosynthesis in our skin, Recommended dietary Allowance, Dietary sources of vitamin D, Deficiency symptoms of vitamin D, Hypervitaminosis of vitamin D.
Small amounts of vitamins are required in the diet to promote growth, reproduction, and health. Vitamins A, D, E, and K are called the fat-soluble vitamins, because they are soluble in organic solvents and are absorbed and transported in a manner similar to that of fats.
Chemistry of Vitamin K, Biochemical role of Vitamin K, Recommended dietary allowance of Vitamin K, Dietary sources of Vitamin K, Deficiency symptoms of vitamin K, Hypervitaminosis of vitamin K, Toxicity of Vitamin K
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Chemistry, and biochemical role, rda, vitamin dJasmineJuliet
Vitamin D - Chemistry,n Metabloism, Biosynthesis in our skin, Recommended dietary Allowance, Dietary sources of vitamin D, Deficiency symptoms of vitamin D, Hypervitaminosis of vitamin D.
Small amounts of vitamins are required in the diet to promote growth, reproduction, and health. Vitamins A, D, E, and K are called the fat-soluble vitamins, because they are soluble in organic solvents and are absorbed and transported in a manner similar to that of fats.
Chemistry of Vitamin K, Biochemical role of Vitamin K, Recommended dietary allowance of Vitamin K, Dietary sources of Vitamin K, Deficiency symptoms of vitamin K, Hypervitaminosis of vitamin K, Toxicity of Vitamin K
7 Vital Nutrients You're Not Getting and How to Stop Sabotaging Your HealthNu U Nutrition
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Ozone layer Depletion and its implicationsHIMANSHU JAIN
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CONTENTS-
Introduction
• History
• SCP production in India
• Raw materials
• SCP production
• Advantages and Disadvantages
• Applications
• Conclusion
• References
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Roti Bank Hyderabad: A Beacon of Hope and Nourishment
Vitamin
1. VITAMINS
• Vitamins are made up of carbon,
hydrogen and oxygen.
• Vitamins are called micronutrients
because they are needed in only very
small quantities. They all have chemicals
names but they are usually referred to
by letters.
2. MAIN FUNCTIONS
• Vitamins are essential to the body:
• To maintain health
• To help prevent deficiency diseases such as
Beriberi (weakened muscles, heart, nerves and
digestive system) and rickets (softening of the
bones)
• To regulate the repair of body cells
• To help combat the ageing process
• To help to process carbohydrates and release
energy in the body
4. Water soluble
• Cannot be stored in body
- regular supply needed
• Excess is excreted in
urine - no danger of toxic
levels
• Unstable to heat and
light, leach into cooking
liquids
Fat Soluble
• Can be stored in body -
regular supply not needed
• Can accumulate to toxic
levels if large amounts
ingested
• Fairly stable at normal
cooking temperatures
5. Vitamin A – 2 forms; Retinol and Beta-
Carotene
Retinol
Named because of its
concern with retina of
eye
Only found in animal
foods
Beta-Carotene
Plant sources
Present with chlorophyll
in plants, converted to
Vitamin A in gut wall
6. Vitamin A - Retinol and Beta-Carotene
Functions
• Regulates growth
• Promotes healthy
skin
• Maintenance of
healthy tissues
• Helps eye adapt to
dim light
The moisturising
vitamin!
Sources
Retinol - Cod liver oil,
Liver, Dairy products,
Herrings, Egg yolk
Beta-Carotene
Dark green leafy
vegetables, Broccoli,
Carrots, Deep orange
fruits and vegetables
7. Vitamin A - Retinol and Beta-Carotene
Effects of deficiency
• Retarded growth,
malformed bones
• Long term-may lead to
night blindness
• Susceptibility to
infection
• Excess beta-carotene
may lead to liver and
bone damage
8. Vitamin D -Calciferols
Functions
• Absorption and
laying down of
calcium and
phosphorous in
bones and teeth
• Regulates calcium
balance between
bones and blood
• Prevents rickets
Sources
Sunlight conversion
Fish liver oils
Dairy products
Oily fish
Margarine
9. Vitamin D -Calciferols
Effects of deficiency
• *Rickets in children and
*osteomalacia in adults
• **Osteoporosis
• Dental caries
* Conditions where bones
are soft and cannot take
weight of body
**Bones become light, less
dense and prone to
fractures
10. Vitamin E - Tocopherol
Functions
• Protects tissues
against damage
• Promotes normal
growth and
development
• Helps in normal red
blood cell
formation
Sources
Pure vegetable oils
Wheat
wholemeal bread and
Cereals
egg yolk
nuts
sunflower seeds
11. Vitamin E - Tocopherol
Effects of deficiency
Deficiency is very
rare but it could
affect the central
nervous system
12. Vitamin K - Napthoquinone
Functions
• Needed for blood
clotting, which means
it helps wounds heal
properly.
• There is increasing
evidence that vitamin
K is also needed to
help build strong
bones.
Sources
Green leafy veg
Vegetable oil
Cereals
13. Vitamin K - Napthoquinones
Effects of deficiency
Deficiency is very
rare but individuals
with liver damage
and new born infants
are at a higher risk
14. Vitamin B1 - Thiamin
Functions
• Essential for release of
energy from
carbohydrates
• Necessary for appetite
and good health
• Needed for normal
functioning of nervous
system
Sources
Meat
Oatmeal
Breakfast cereals
Wheat
Fortified white flour
Milk
Eggs
Vegetables
15. Vitamin B1 - Thiamin
Deficiency
• Fatigue,
depression,
irritability
• Beri-beri -
disease of
nervous system
16. Vitamin B2 -Riboflavin
Functions
• Metabolism of carbohydrates,
proteins and fats
• Growth, repair, development of
body tissues - healthy skin, eyes
and tongue
• The principal growth promoting
factor in the vitamin B complex
Sources
Offal
Milk
Cheese
Eggs
Yeast extracts
Green Vegetables
18. Vitamin B3 -Niacin
Functions
• Metabolism of
carbohydrates, proteins
and fats
• Needed for normal
functioning of nervous
system
Sources
Meat, Offal
Yeast extracts
Yeast
Bran, wheat, flour
Some pulses, dried fruit
20. Vitamin B9 -Folic Acid
Functions
• Red blood cell formation
• Development of brain, spinal
cord and skeleton in foetus
• Reduces risk of neural tube
defects e.g. spina bifida
• May play role preventing
heart attacks, strokes and
cancer
• Sources
• Fortified cereals
• Green leafy
vegetables
• Potatoes
• bread
• Milk
• Wheat
21. Vitamin B9 -Folic Acid
Deficiency
• Fatigue in mild cases
• Anaemia in severe
cases
• Neural tube defects
Important to take
folic acid prior to
conception and vital
during first 3 months
pregnancy
22. Vitamin C -Ascorbic Acid
Functions
• Critical to immune system
• Formation of connective
tissue, collagen
• Helps absorption of iron
• Prevents scurvy
• Promotes healing of wounds
and healthy blood vessels
• Acts as antioxidant,
protects cholesterol
• Sources
• Rosehips,
blackcurrants,
• green peppers, kiwi,
citrus
• fruits,
strawberries,
• spinach, cabbage,
• broccoli
23. Vitamin C -Ascorbic Acid
Deficiency
• Weakening of connective tissue
• Susceptibility to infection
• Incomplete iron absorption
• Delayed healing of wounds
• Prevent scurvy - pale skin with spots,
bleeding, soft gums.
24. KEY FACTS:
• Micronutrients are essential for a
healthy body
• Water soluble vitamins must be eaten
every day
• It is easy to improve the micronutrient
content of your diet by eating more
fruit and vegetables, enough red meat
and wholegrain cereals.
25. MINERALS
• Our body requires mineral elements for
a variety of functions. They are also
known as micronutrients.
26. MINERALS
• Unlike vitamins, which are organic substances
minerals are inorganic and are found in rocks
and soil. Vegetables absorb minerals as they
grow, while animals digest it through their
diet.
• Minerals can be divided into two groups -
those needed in larger quantities (major
minerals) and those only required in tiny
amounts (trace elements).
27. MINERALS
• Trace Minerals - are iron, zinc and
iodine.
• Major Minerals - are sodium,
potassium, calcium and phosphorus.
28. MINERALS
• Minerals have 4 major functions:
• Body building – teeth and bones
• Control of body processes, especially
the nervous system
• Essential part of body fluids and cells
• Form part of enzymes and other
proteins necessary for the release of
energy
29. Iron
• Functions
• Production of
haemoglobin in
red blood cells to
carry oxygen in
the blood
• Sources
• Red meat
• Kidney
• Liver
• Eggs
• Bread
• Green veg
Deficiency
• Anaemia
30. Calcium
• Functions
• Teeth and bones.
• Blood clotting.
• Nerve and muscle
contraction.
• Heart regulation
• Sources
• Dairy products
• fortified white
bread
• oily fish
• green veg
• nuts and seeds
• citrus fruits.
Deficiency
Stunted growth can cause
rickets, osteoporosis.
31. Phosphorus
• Functions
• Bones and teeth
with calcium.
• Muscle contraction
• Sources
• Dairy products
• Nuts
• Meat
• Fish
• foods rich in
calcium
Deficiency
Rarely deficient but could
cause tiredness and
depression
32. Sodium
• Functions
• Maintains water
balance in the body
and controls body
temperature, helps
you sweat when body
temp rises.
• Sources
• Cheese
• Bacon
• smoked meats
• Fish
• processed foods
• table salt.
• Government advice
says on average you
should be eating no
more than 6g of salt a
day.
Deficiency
Deficiency is highly
unlikely
33. Potassium
• Functions
• Muscle contraction
and in maintaining
fluid. It is necessary
for the building of
muscle and for
normal body growth.
• Sources
• Banana
• Celery
• Turnips
Deficiency
Dry skin, acne,
Muscle spasms
34. Zinc
• Functions
• Everything from
acne to diabetes.
Aids the immune
system. Needed for
the senses of smell
and taste.
• Sources
• Meat (lamb)
• Oats
• Eggs
• Nuts
Deficiency
Dry skin, acne,
Muscle spasms
35. Iodine
• Functions
• Thyroid gland function
(controls how quickly
the body uses energy)
and body metabolism
• Sources
• Animal and plat
life from the sea
• Milk
• Eggs
• Yogurt
Deficiency
Particularly in
children,
fall in the production
of thyroid hormones
36. Fortified Foods
• The addition of micronutrients to
commonly consumed staple foods is a cheap
and effective way of improving nutrient
intake for the population as whole or for
vulnerable groups.
• In the UK since the 1940s there has been
mandatory fortification of white flour with
calcium, iron, vitamins B1 – thiamin and B3 -
niacinB1, B2 and margarines with vitamins A
and D. These measures have helped to
reduce the burden of many previously
common deficiencies
37. Folic acid fortification
Folic acid is a B vitamin. It is called folate when it is
found in foods in its natural form. Folic acid is used
in supplements or added to food.
Some foods, such as many breakfast cereals and
spreads, are already fortified with folic acid and
other vitamins and minerals. But recently there have
been discussions about whether it should be
compulsory to add folic acid to bread or flour in the
UK.
38. Match up Task:
• Match up the vitamin or mineral to the
function and to the
40. Practical Task
• Demonstrate your understanding and
nutritional knowledge in such away to
maximise the ascorbic acid content of a
recipe.
• Find out what the RNI for vitamin C is in
adults and your recipe should aim to supply
at least a third of the RNI for vitamin C.
60mg.
• Your practical work should be a main course
or starter course using vegetables.
41. To do:
• Investigate food sources naturally rich in
vitamin C.
• Select an appropriate recipe and nutritionally
model it to ensure that it reaches a third of an
adults RNI for vitamin C. 20mg.
• Plan to cook your dish; write out the method
with controls. In the controls you must fully
explain how vitamin c is lost and what steps you
will be taking to reduce the loss of vitamin C.
• After making, evaluate. Estimate where the
ascorbic acid was lost in your recipe. Were there
any further steps that you could have taken to
minimise that loss?