#American #biochemist who identified that #nicotinic acid was a #vitamin which when absent from d…
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#American #biochemist who identified that #nicotinic acid was a #vitamin which when absent from diet resulted in the disease #pellegra.
In 1937, working with #dogs having the canine equivalent of pellegra (#blacktongue), he showed that giving a dog 30 milligrams of nicotinic acid resulted in substantial improvement. Continuing doses to correct the diet #deficiency led to complete #recovery. It worked as well in #humans. #Niacin is one of the #Bvitamins.
His later work was on the trace #minerals such as #zinc and #cobalt which are essential to life as component parts of #enzymes.
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