The study of the appropriate provisions required to sustain life in an organism or the provisions themselves.

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Are the 8 principal sugars in glycoproteins “essential sugars”? [closed]

Are there "essential sugars"? Some have suggested that the 8 principal sugars found in glycoproteins are "essential sugars": Galactose Glucose Mannose N-Acetylneuraminic acid Fucose ...
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Which people/race have more Vitamin C? [closed]

Which people/race have more Vitamin C? Black/White/Brown/Wheat color people?