#2 – Vitamin E

Just like selenium, vitamin E is also a popular anti-cancer supplement. However, just like the previously mentioned supplement, too much vitamin E is also very bad for your health, and can actually increase the risk of cancer. There was a huge study done in 2012, in which 35,533 men were taking vitamin E, and the researches came to the conclusion you read in the previous sentence. There is absolutely no reason why you should continue taking this supplement.