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Hi-D
About Hi-D
Hi-D Natural Vitamin D offers a certified organic shiitake mushroom supplement range, delivering a clean, plant-based source of high-quality Vitamin D.
Free from chemical extractions, additives, and preservatives, the vegan capsules are available in varied strengths to support immune health and inflammation.
Free from chemical extractions, additives, and preservatives, the vegan capsules are available in varied strengths to support immune health and inflammation.
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Frequently Asked Questions
What is Hi-D, exactly?
Hi-D is a whole-food vitamin D supplement made entirely from UV-activated Shiitake mushrooms. No synthetic vitamin D, no fillers, no solvents — just the mushroom's fruiting body, exposed to UV light so it produces vitamin D2 the same way your skin makes vitamin D from sunlight.
What's the difference between vitamin D2 and D3?
D3 is the form most supplements use, typically derived from lanolin (sheep's wool) or made synthetically. Hi-D uses D2, produced naturally via UV-activated Shiitake. Research shows whole-food D2 from mushrooms is highly bioavailable — meaning your body absorbs and uses it effectively.
Does Hi-D cause digestive issues like some other vitamin D supplements?
Some customers who've reacted to other vitamin D supplements report not having the same issue with Hi-D, though individual digestion varies. If you have a specific sensitivity or condition, it's worth checking with your doctor before switching.
From our wellness center
Author
Sam Godfrey - MA (IntST), B.Bus. (Mgt.), DipHSc(Nat)
Naturopath
Your Health. Your Way.
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