The health benefits of vitamins include their ability to prevent and treat various diseases including heart problems, high cholesterol levels , eye disorders, and skin disorders. Devore EE, Grodstein F, van Rooij FJ, Hofman A, Stampfer MJ, Witteman JC, Breteler MM. Dietary antioxidants and long-term risk of dementia. This means that these vitamins are required for the body to work properly. Vitamin products above these regulatory limits are not considered supplements and should be registered as prescription or non-prescription ( over-the-counter drugs ) due to their potential side effects.
While vitamin E is available in many skin care products, the problem is that any effects could be minimized upon sun exposure. It also helps make red blood cells and control the body’s hormones. Organosulfur compounds such as allicin may benefit the immune system, help the liver make cancer-causing substances harmless, and reduce the production of cholesterol in the liver.
Positive connections with B1, as well as with B2 and B3, have made these essential for elderly patients who need extra nourishment or those who are at a high risk of dementia or Alzheimer’s disease. People who drink heavily or have kidney or liver disease also should not take vitamin A supplements without talking to a doctor.
Thiamin deficiency results in beriberi , a disease that can cause atrophy, weakness of the legs, nerve damage, and heart failure Vitamin C deficiency results in scurvy, a disease that involves bleeding. One clinical study showed that the administration of ZnSO4 could improve the clinical manifestations of nickel contact dermatitis and could eliminate or reduce the majority of patch-test reactions; intolerance to ZnSO4 was not observed.
Carotenoids are categorized as either xanthophylls or carotenes according to their chemical composition. Research suggests that calcium supplements, when taken alone or with vitamin D, increase the likelihood of heart problems, especially heart attack. The FDA does not require manufacturers to provide any scientific evidence that dietary supplements are safe and effective before a product is sold (unlike drugs, which must be proven both safe and effective through clinical trials).