>>Except for some rare circumstances Athletes and those who don't get enough sun, like most in the northern parts of the United States with the abrupt switch t

>>Except for some rare circumstances Athletes and those who don't get enough sun, like most in the northern parts of the United States with the abrupt switch to being indoors far more than usual in the last 100 years? It's not that rare. If you mean the bullshit industry, sure, but this attitude of "all vitamins are obtained through food" is simply not true and been proven repeatedly false - especially for athletes.