The vitamin supplement industry is one of the big racket. And they are allowed to rip-off the public by a government that is unwilling to regulate them. Who knows how many people are poisoned each year by using what is essentially over the counter drugs. The only time you use supplements is by direction of a doctor:
They are a daily essential for millions of Britons hoping to ward off ill-health.Full article
But despite the millions of pounds spent on vitamin pills, they do nothing for our health, according to a major study.
Researchers spent more than six years following 8,000 people and found that those taking supplements were just as likely to have developed cancer or heart disease as those who took an identical-looking dummy pill.
And when they were questioned on how healthy they felt, there was hardly any difference between the two groups.