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http://openlearn.open.ac.uk/course/view.php?name=SK183_2
Submitted by psychemedia 26 months, 1 week, 20 hours ago
Both vitamins and minerals are essential in the diet in small quantities.The term ‘vitamin’ was not coined until early in the 20th century, to describe those chemicals in food without which a pattern of deficiency symptoms (often called a deficiency syndrome) occurs. Minerals, also called mineral elements, are those elements other than carbon, hydrogen...
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