"Vitamins taken by around a third of the population do not extend life and may even cause premature death, according to a respected group of international scientists.These findings are similar to research reported in "Are Your Vitamins Safe?" A study using synthetic vitamins, e.g. synthetic vitamin E, resulted in increased rates of lung cancer, heart attacks and death.
After reviewing 67 studies involving more than 230,000 men and women, the experts say there is no convincing evidence that taking supplements of the antioxidant vitamins A, C and E can make you healthier...."The review involved trials on beta-carotene, vitamin A, vitamin C, vitamin E and selenium.
"It says in-depth analysis of the different trials does not support the idea that vitamins extend lifespan.
'Even more, beta-carotene, vitamin A, and vitamin E seem to increase mortality,' says the review. More here
Nearly ALL vitamins sold in the U.S. and the UK are synthetic.
Check your vitamin label against the above report. Then ask for whole food-based multis. There are not many but they do exist.
Here's a company that has them available online. (I am part owner of it, so you are supporting my work when you choose these.)