What is VITAMIN C?
is a compund called ascorbic acid, it is needed for synthesis of collagen fibres that form part of many tissues in the body, in cluding skin an blod vessel walls.
Amounts of vitamin c per day
The standard or normal amount that adults should consume is of 10 mg. But governments have state a higher amount of 30 to 60 mg, in order to allow individual variations.
TOK...Status authority over evidence
Linus Pauling claims that taking massive doses of vitamin c can prevent respiratory infections like the cold. Other scientist attack that idea by stating that this massive doses do not give protection and once stop those doses the body could have problems or deficiency's. Meaning that if the person tries to come back to normal amounts, symptoms of scurvy may appear. This is called rebound malnutrition.
Vitamin D
Is needed for calcium absorption from food in the intestines, so the symptoms of vitamin D deficiency are similar to those of calcium, in children it can appear as a skeletal deformities called rickets. Vitamin D doesn't have an specific definition as a vitamin because it is synthesized in the skin.
List of food sources for vitamin d
| Vitamin D Rich Foods List | Micrograms | Portion |
| Cod liver oil | 200 + | 100g |
| Margarine | 750 | 100g |
| Butters (fortified) | 700 + | 100g |
| Herring | 22 + | 100g |
| Kippers | 13 | 100g |
| Salmon (canned) | 12 + | 100g |
| Mackerel | 10 + | 100g |
| Pilchards (canned) | 8mcg | 100g |
| Sardines | 7mcg | 100g |
| Tuna | 4 + | 100g |
| Roe | 2 + | 100g |
| Breakfast cereal (fortified types) | up to 2 | 100g |
| Eggs | up to 2 | 100g |
