However, in some cases, zinc deficiency is associated with lip inflammation ... Other forms of vitamin A, like retinol and retinoids, may also cause dry lips. Oral or topical retinoids are a standard ...

A recent case is highlighting the return of a disease associated with Elizabethan sailors and polar explorers.

Vitamin D deficiency has been correlated with increased rates of infection. Since the early 19th century, both environmental (i.e., sunlight) and dietary sources (cod liver) of vitamin D have been ...

One of the most obvious signs of Vitamin D deficiency is excessive fatigue and tiredness. The weather conditions in winter can add on to that fatigue. Many studies support the claim that ...

Deficiency in these peptides results in increased susceptibility to infection. Regulation of gene expression is not fully understood. Vitamin D, TB & other infectious diseases Vitamin D deficiency ...