Химиялық элементтер, қосылыстар және адам ағзасы. 1-сабақ : Тағам құрамындағы қоректік заттар. Химия, 7 сынып, қосымша материал 3.

The main nutrients are proteins, carbohydrates, fats, vitamins and minerals. Each nutrient has a different purpose.

Nutrients

Proteins

Fresh fish is a source of protein

Proteins assist with growth and repair of the body.

Proteins are found in animal products like meat, fish, cheese, milk and eggs. Vegetable sources include soya-bean products, pulses and nuts.

Carbohydrates

Carbohydrates are needed to give the body energy. There are two types of carbohydrate - starch and sugar.

• Starch is found in cereals, cornflour, potatoes, pasta and flour.
• Sugar is found in fruit, vegetables, honey, milk and malt products.

Fats

Fats help to provide concentrated sources of energy and help to insulate the body in cold weather. There are two main types.

• Saturated fats are usually obtained from animal sources, for example butter and lard. The exceptions are coconut and palm oils.
• Polyunsaturated fats come from vegetable sources, such as sunflower oil.

Vitamins

Vitamins are needed in very small amounts for growth and health. The main vitamins are vitamin A, the B complex of vitamins, vitamin C and vitamin D.

Uses and sources of vitamins

Vitamins

Vitamins are needed in very small amounts for growth and health. The main vitamins are vitamin A, the B complex of vitamins, vitamin C and vitamin D.

Uses and sources of vitamins