Vitamin B3 crystals, polarised light micrograph. Vitamin B3 exists in two main forms: niacin and niacinamide. This image is of crystals of niacinamide. Vitamin B3 is part of the vitamin B complex, and takes part in many metabolic reactions. Good sources of vitamin B3 are liver meat, groundnuts and sunflower seeds. A deficiency of this vitamin in the diet causes the disease pellagra. Magnification: x25 when printed at 10 centimetres wide.
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Creative#:
TOP24765327
Source:
達志影像
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RM
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須由TPG 完整授權
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