Post on 04-Jan-2016
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.
8A2 Vitamins and mineralsWho was James Lind?
In 1746 he investigated a cure for scurvy aboard HMS Salisbury.
Only the sailors given citrus fruits showed any improvements.
All about vitamins
Oily fish, milk, butter, eggs
RicketsAbsorbing calcium and making bones
D
Oranges, lemons, tomatoes, blackcurrants
ScurvyCell processes, absorbing iron
C
Whole-grain cereals, yeast, nuts, egg, liver, peas, beans
Beri-beriHealthy nerves, release of energy from cells
B1
Milk, cheese, oily fish, carrots, dark green vegetables
Night-blindnessVision, healthy skinA
What foods contain it?
Deficiency disease
What is it used for?Vitamin
Liver, meat, eggs, cereals, apricots, spinach, cocoa
AnaemiaIn red blood cells, releasing energy
Iron
Cheese, milk, sardines, chocolate, bread, spinach
RicketsBones, teeth, nerve cells
Calcium
What foods contain it?
Deficiency disease
What is it used for?
Mineral
All about minerals
• 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:
Who was FG Hopkins?
RDAs of vitamins and minerals (in milligrams, mg)
Vitamin A 0.8 Vitamin B1 1.4 Vitamin C 60 Vitamin D 0.05 Calcium 800
Iron 14
RDAs of vitamins and minerals
Do you know what RDA means?
Recommended daily allowance
rickets
anaemia
cereals
beri-beri
oranges
carrots
scurvy liver
night-blindness milk
Match the deficiency disease to the food that will prevent it. Click to reveal the answers.
Deficiency diseases