Vitamins & Supplements

Vitamins & Supplements Articles

B vitamins may raise risk of lung cancer in men who smoke

High dosages of vitamin B6 and B12 supplements were associated with three to four times the lung cancer risk in male smokers compared with smokers who did not use the vitamins. However, men who quit smoking for at least 10 years prior to the study, and also took the high dosages of the B vitamins, did not have a higher risk of lung cancer. More »

Taking too much vitamin D can cloud its benefits and create health risks

In recent years, there has been more research into the role vitamin D plays in the development of chronic diseases. While evidence showing vitamin D as a cause for disease or a means to prevent it is far from conclusive, vitamin D supplements and testing have seen a surge in popularity. It is important to stick to recommended doses, unless a doctor advises otherwise. Taking too much can be harmful. (Locked) More »

How much vitamin D should I take?

Scientists don’t have definitive evidence yet about how much vitamin D one should take for good health. There’s general agreement that doses above 4,000 IU daily can be toxic to adults, with lower doses toxic to kids. (Locked) More »

Can any vitamins stop my glaucoma from getting worse?

No convincing studies show that vitamins or dietary supplements can treat glaucoma once it is diagnosed, but a higher intake of green leafy vegetables like lettuce, kale, and spinach is linked to a lower risk of developing glaucoma. Diet may be more effective at preventing glaucoma than treating it once it appears. (Locked) More »

Is vertigo caused by a magnesium deficiency?

There is little evidence that vertigo is due to magnesium deficiency or prevented by magnesium supplementation. However, there is some evidence linking low vitamin D levels with vertigo and suggesting that vitamin D supplementation may be helpful. (Locked) More »