In a study conducted in Australia, children with
phenylketonuria (an in-bourn metabolic error in
converting the amino acid phenylalanine into
tyrosine) were found to have low blood levels of
the important antioxidant mineral selenium, as a
result of the special phenylketonuric diet they
had to follow. When the children were given a
brewer’s yeast supplement for six months that
provided 50 mcg of selenium daily, their blood
selenium levels significantly increased.7
In another study, elderly subjects, including eight
mildly non-insulin-dependent diabetics, were fed
either chromium-rich brewer’s yeast. The results
were that with both the diabetic and nondiabetic
subjects, glucose tolerance improved