Chemistry of Nutrition

Science — Second Preparatory

Vitamins, mineral salts, water and fibre

Comparison aspect	Main idea	Keywords
Vitamins	organic substances needed in very small amounts. They do not supply energy. Examples are vitamin C found in citrus fruits and vitamin D which the body makes with the help of sunlight	organicsubstancesneededvery
Mineral salts	such as calcium which is needed for bones and teeth iron which is needed to make haemoglobin and iodine which is needed for the thyroid gland	calciumneededbonesteeth
Water	forms a large part of the body helps control temperature and carries substances around the body	formslargepartbody
Fibre	material the body cannot digest but it helps the movement of the intestines and prevents constipation	materialbodycannotdigest

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