Define Nutrition, Nutrients and functions. nutritional status and Poor and good sign of nutrition.

2. Define Nutrition?
.
Nutrition is the science that
interprets the interaction
of nutrients and other
substances in food in relation
to maintenance, growth,
reproduction, health and
disease of an organism.
It includes food intake,
absorption, assimilation,
biosynthesis, catabolism and
excretion

3. Define Nutrients?
Substances in food that our
body needs to function
properly to grow, repair itself
and supply you with energy
6 BASIC NUTRIENTS
Carbohydrates
Fats
Proteins
Vitamins
Minerals
water

4. carbohydrates
• It can be defined as “Organic substance
made up of carbon, hydrogen and
oxygen that supplies the body main
source of energy” is known as
carbohydrates.
• It provide you with most of your energy,
as they make up around half of your
daily calorie intake and are converted
into blood glucose or blood sugar by
your body to be used for energy” .
• Functions of Carbohydrates
• To provide energy through their
oxidation.
• To supply carbon for the synthesis of cell
components.
• To served as a stored form of chemical
energy.

5. Fats
‘’A natural oily substance occurring
in animal bodies, especially when
deposited as a layer under the skin
or around certain organs’’ is
known as fats.
•Functions of Fats:
•Helps with normal growth and
development by providing
essential fatty acids.
•Is a source of energy.
•Add taste and texture to foods.
•Forms cell membranes and
secretions in body.
•Helps absorb fat-soluble vitamins
A, D, E & K.
•Cushions internal organs.

6. Proteins
It is defined as “the substance found in food and drink such as meat,
eggs, and milk. You need protein in order to grow and be healthy.
Functions of protein
i) protein is vital in the maintenance of
body tissue, including development
and repair.
ii) Protein is a major source of energy.
iii) It is involved in some creations of
hormones.
iv) Enzymes are proteins that increase
the rate of chemical reaction in the
body.
v) It is a major element in the
transportation of certain molecule.
vi) It forms antibodies that help prevent
infection, illness and disease.

7. vitamins
• It is defined as ‘’any of
a group of organic
compounds which are
essential for normal
growth and nutrition
and are required in
small quantities in the
diet because they
cannot be synthesized
by the body’’.

8. Minerals
• Definition:
• It is an naturally occuring inorganic
solid substance with definite
chemical composition is known as
Minerals.
• Some are essential components of
bodily substances, such as the
calcium in bones and the iron in
hemoglobin, whereas others help
regulate the activities of
metabolism.

9. Water
It is defined as “the Water is an essential element in life, and drinking enough
clean and healthy water every day should be a priority”.
Nutrient that makes up 60% of our body. You needs 6-8 cups a day.
Functions of water in human body
It regulates body temperature
It Lubricates joints and mucous membranes
Enables you to swallow and digest foods
Carries nutrient to and transport waste from cells.

10. Nutritional Status
The condition of the body in those respects
influenced by the diet; the levels of nutrients in
the body and the ability of those levels to
maintain normal metabolic integrit

11. Poor Nutritional status
Signs and Symptoms
•Fatigue
•Weight Changes
•loss of appetite
•Weakness
•Brittle nail, loss of hair
•Change in Bowel Habits.
•decreased muscle tone
•Dry, scalp and scaly skin
• Dry& Cracked lips

12. Signs of Good Nutrition
Signs & symptoms:
•Restful sleep patterns
•Healthy appetite
•Regular sleep and Elimination Habits
•Appropriate Body weight
•Shiny hair
•Smooth skin
•Clear eyes
•Resistance to diseases
•Increased life span