8A2 Vitamins and minerals Who was James Lind? In 1746 he investigated a cure for scurvy aboard HMS Salisbury. He chose 12 sailors sick with scurvy and gave each pair either: • a quart of cider a day; • a medicine containing the acid, vitriol, three times a day; • a spoonful of vinegar three times a day; • a half pint of sea water every day; • an orange and a lemon every day; • one pill containing garlic, mustard seed, balsam and myrrh every day. He observed the sailors every day for a week. Only the sailors given citrus fruits showed any improvements. All about vitamins Vitamin What is it used for? Deficiency disease A Vision, healthy skin Night-blindness B1 Healthy nerves, release of energy from cells Beri-beri C Cell processes, absorbing iron Scurvy D Absorbing calcium and making bones Rickets What foods contain it? Milk, cheese, oily fish, carrots, dark green vegetables Whole-grain cereals, yeast, nuts, egg, liver, peas, beans Oranges, lemons, tomatoes, blackcurrants Oily fish, milk, butter, eggs All about minerals Mineral What is it used for? Deficiency disease What foods contain it? Calcium Bones, teeth, nerve cells Rickets Cheese, milk, sardines, chocolate, bread, spinach Iron In red blood cells, releasing energy Anaemia Liver, meat, eggs, cereals, apricots, spinach, cocoa Who was FG Hopkins? • FG Hopkins fed some rats on a diet of protein, carbohydrate and fat. • To some he also gave a small amount of milk each day. • Here is a graph of his results: RDAs of vitamins and minerals RDAs of vitamins and minerals (in milligrams, mg) Vitamin A Vitamin B1 Vitamin C Vitamin D Calcium 0.8 1.4 60 0.05 800 Iron 14 Do you know what RDA means? Recommended daily allowance Deficiency diseases Match the deficiency disease to the food that will prevent it. Click to reveal the answers. rickets cereals anaemia oranges beri-beri carrots scurvy liver night-blindness milk