Diet and its components






The body needs a variety of nutrients - proteins, carbohydrates, fats, vitamins and minerals - and these come from the foods we eat.
Proteins are needed to build and maintain muscle, blood, skin and bones and other tissues and organs in the body.
Carbohydrates and fats mainly provide energy, although some fats are also needed as building materials and to help the body use certain vitamins.
Vitamins and minerals 
are needed in smaller amounts than protein, fat and carbohydrates but they are essential for good nutrition. They help the body work properly and stay healthy. Some minerals also make up part of the body's tissues, for example, calcium and fluoride are found in bones and teeth and iron is found in the blood.
Fibre
 (or roughage) and clean water are also needed for a good diet.
All foods contain nutrients but different foods contain different amounts of various nutrients.
Foods rich in proteins are all types of meat, poultry, fish, beans, peas, soybeans, groundnuts, milk, cheese, yoghurt and eggs,butter,corn
Foods rich in carbohydrates
 are rice, maize, wheat and other cereals, all types of potatoes, yams and starchy roots and sugars.
Foods rich in fats 
are oils, some meat and meat products, lard, butter, ghee and some other milk products, margarine, some types of fish, nuts and soybeans.
Foods rich in vitamin A
 are dark-green vegetables, carrots, dark-yellow sweet potato, pumpkin, mango, papaya, eggs and liver.
Foods rich in B vitamins
 are dark-green vegetables, groundnuts, beans, peas, cereals, meat, fish and eggs.
Foods rich in vitamin C
 are fruits and most vegetables, including potatoes.
Foods rich in iron
 are meat, fish, groundnuts, beans, peas, dark-green leafy vegetables and dried fruits.