Scurvy people in the developing world and the homeless. There have been outbreaks of the condition in refugee camps. Case reports in the developing world of those with poorly healing wounds have occurred. Notable human dietary studies of experimentally induced scurvy have been conducted on conscientious objectors during World War II in Britain and on Iowa state prisoner volunteers in the late 1960s. These studies both found that all obvious symptoms of scurvy previously induced by an experimental scorbutic diet with extremely low vitamin C content could be completely reversed by additional vitamin C supplementation of only 10 mg per day.
Vitamin D deficiency outcome for some cancers, but evidence is insufficient to recommend that vitamin D be prescribed for people with cancer. Taking vitamin D supplements has no significant effect on cancer risk. Vitamin D, however, appears to decrease the risk of death from cancer but concerns with the quality of the data exist. Vitamin D deficiency is thought to play a role in the pathogenesis of non-alcoholic fatty liver disease. Some studies have indicated that vitamin D deficiency may play a role in immunity. Those with vitamin D deficiency may have trouble fighting off certain types of infections. It has also been