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. Chapters 0:00 Introduction0:28 Calcium0:54 Iron1:09 Vitamin D1:29 Vitamin C1:45 Magnesium2:02 Vitamin B122:18 Folate2:36 Iodine A vitamin is an organic molecule (or a set of molecules closely related chemically, i.e. vitamers) that is an essential micronutrient that an organism needs in small quan...Read more

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