It may take two to three weeks after you begin taking iron supplements for your symptoms of anemia to start improving.

There are no vitamins that can treat boils, which can be cured only with antibiotics. However, you can take vitamins to help with your immune system and skin health.

Taking vitamin B12, cobalamin, gives you many health benefits. It rarely causes side effects, but you should talk to a doctor before using any supplement.

Multivitamins like the GNC Women's Ultra Mega target specific populations. However, multivitamins generally aren't very useful; diet is much more important.

Vitamin B-50 is a B-complex vitamin used to prevent or treat nutrient deficiencies. It provides high doses of B vitamins, but may also contain other nutrients.

Folic acid can help women and men with fertility issues. However, it's not guaranteed to help. When it does, supplementation is often in very high doses.

There's little evidence linking iron pills and weight gain. It's more likely that weight gain is caused by iron deficiency itself or a coexisting condition.

Too much B12 typically doesn't cause negative effects in healthy adults, but it may pose problems for special populations, including expectant mothers.

High folate level symptoms include a bad taste in the mouth, nausea, appetite loss and confusion. Excessive use of folic acid can have serious consequences.

There is no magical combination of vitamins that can force nicotine from your system, but there are vitamins for smokers and drinkers that can help address their particular nutritional needs.

The foods that make up your diet can influence how well your body absorbs iron — so watch out for these common inhibitors of iron absorption.

Taking fish oil supplements can increase the amounts of omega-3 fatty acids in your body. These powerful inflammation fighters are recommended to relieve conditions ranging from high triglycerides to rheumatoid arthritis.