Definition of nutrition


1 16

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.

Nutrition
is the intake of food, considered in relation to the body’s dietary needs. Good
nutrition is referred to as an adequate, well balanced diet combined with
regular physical activity which is a cornerstone of good health. Poor nutrition
can lead to reduced immunity, increased susceptibility to disease, impaired
physical and mental development, and reduced productivity
Classes of food
1.     
Carbohydrates: Energy
giving foods e.g. Bread, Maize, Rice, Cassava, Yam etc.
2.     
Protein: Helps
you grow well and replaces old cells (warn out tissues) e.g. Meat, Fish, Eggs,
Milk, Beans etc.
3.     
Fats
and Oils
: Energy storing foods e.g. Palm oil, Vegetable
oil, butter etc.
4.      Vitamins:
Vitamins are an essential nutrient because they build and maintain
healthy bones and muscle tissue. They also support our immune system, maintain
the health of our blood, and ensure healthy vision. Vitamins are micro
nutrients, meaning they are needed in small amounts to sustain our normal
health and body functions. Some examples of common vitamins are Vitamin C and
K, and the many B Vitamins. Example of food that contain vitamins are milk, eggs, liver, fortified cereals, darkly
coloured orange or green vegetables (such as carrots, sweet potatoes and
pumpkin) and orange fruits such as pawpaw and mangos.
5.     
Minerals: Minerals assist in the regulation of many body
functions, some of which involve regulating fluids and producing energy and
health of our bones and blood. This nutrient also helps rid our body of harmful
byproducts of metabolism. Some examples of well-known minerals are calcium,
potassium, sodium and iron. Examples of foods that contain minerals include Milk and other dairy
products — such as yogurt,
cheese, and cottage cheese — are good sources of calcium. This also includes dark
green leafy vegetables. Soy foods and foods fortified with calcium, including
orange juice and soy milk, are
also good sources.
6.     
Water:
Water helps to transports nutrients to cells. Water also assists in removing
waste products from the body. All beverages and high-moisture foods such as
soup and watermelon contain water and count towards for daily water
requirement. Adults should consume 25 to 35 milliliters of fluids per kilogram
body weight or 2 to 3 liters per day.
0 0 votes
Article Rating
Subscribe
Notify of
guest

0 Comments
0
Would love your thoughts, please comment.x
()
x