Report on a study that found many U.S. women of childbearing age, particularly those of African descent, lack sufficient vitamin D even though they consume the recommended amount.

In depth content explaining role of vitamin in the human body. Includes functions, deficiency signs, and suggested intake.

A detailed description of calciferol, including information on its basic functions, health benefits, and deficiency symptoms.

Vitamin D (calciferol) fact sheet offering details on the functions, health benefits, dosage, sources, deficiency and overdose symptoms of this vitamin.

Discussion of function, deficiency, disease prevention, disease treatment, food sources, supplements, research, and recommendations from the Linus Pauling Institute.

Description of the sunshine vitamin with recommended dosage, deficiency signs, and list of food sources.

Facts on the vitamin such as RDA intake, functions, absorption, and deficiency signs including rickets.

Explains functions of the vitamin with RDA intake suggestions, symptoms of deficiency, and foods high in calciferol.