After reading article of Eijkman that people eating rice are less vulnerable to beri-beri[?], he tried to isolate the substance responsible and he succeeded around 1912. Because that substance contained an amine group, he called it vitamine (vitamin). It was niacin nicotinic acid, vitamin B1 (Thiamin). He put forward the hypothesis that other diseases, like scurvy, could also be cured by vitamins.
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