Is There Scientific Evidence to Support Nutritional Supplementation?

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It's hard to say if that you are for or against supplements because the evidence is so mixed and it depends so much on the type of supplement. There's a lot of good evidence for fish oil, for vitamin D, for other vitamins B and C, in order to prevent deficiency, there's not a lot of good evidence however, for a lot of the claims and lot of the reasons people take supplements.

You don't need to take mega amounts of many of this vitamins for them to be beneficial, they maybe harmful in fact when you take too much so you really do some research by supplement before you start taking them.