This deficiency is very adequately met by Fawcett and Lee's volume. Citrus Diseases and their Control. By Prof. Howard S. Fawcett. With Sections on Oriental Citrus Diseases by H. Atherton Lee.

Vitamin B9, or folate, is vital for DNA synthesis, cell division, red blood cell production, and nerve function. A deficiency ...

In rare cases, people who have anemia are unable to consume Vit B 12 from their diet. This causes the deficiency. It is ...

A disease that once claimed ... Scurvy, caused by a vitamin C deficiency, plagued Renaissance era seamen who relied on a diet of nonperishable foods such as biscuits, salt beef, pork, cheese ...