Vitamin D3 Is More Potent Than Vitamin D2 in Humans -- Heaney et al. 96 (3): E447 -- Jo... - 0 views
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D3 is approximately 87% more potent in raising and maintaining serum 25(OH)D concentrations and produces 2- to 3-fold greater storage of vitamin D than does equimolar D2
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D3 should be the preferred treatment option when correcting vitamin D deficiency