The known dangers of taking vitamin supplements include all of the following except

Which of these meals is lowest in vitamin C?

Which of the following options is a good source of folate?

Which of the following characteristics is shared by vitamins B₆, B₁₂, C and folate?

Of the following foods, which would be the only source of vitamin B₁₂?

Biotin can be synthesised by

Pernicious anaemia results from a deficiency of

The coenzyme FAD is formed from what vitamin?

Riboflavin is most easily destroyed when exposed to

A low-protein diet in which corn is a principal food has been found to cause a deficiency of what vitamin?