As far as I understand, the vast majority of vitamin supplements have no independently demonstrated or scientifically evaluated benefit whatsoever. In fact, man

As far as I understand, the vast majority of vitamin supplements have no independently demonstrated or scientifically evaluated benefit whatsoever. In fact, many supplements have been shown to do more harm than good. They are basically a huge con. Eating a balanced diet of meat, fish, staple cereals/crops, vegetables and fruit is the best thing you can do for yourself. The _only_ supplement I am aware of that genuinely has a benefit is Folic Acid, which pregnant and planning-on-getting pregnant women should take. This is available free on the NHS.