There is never any absolute certainty about what the nutritional requirements are for the human body of a certain age, size and gender. Scientific research on the subject takes a long time, and results are often not that clear. But, at least scientific research into the subject of vitamins, minerals and other nutritional requirements is being undertaken seriously, and taken seriously by governments.
That was not always so; at least, if it was, it never reached through to the medical profession at the sharp end. I took an interest in diet and health in the late 1970s and 1980's and have had a personal interest since. My reason then was firstly because of my own severe, and crippling, arthritic problem, and in the later 1980's because of my son's food allergies, or View the rest of this article
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