Live from SupplySide Global 2026, Nutritional Outlook’s Nicholas Jacobus speaks with Michael Anthonavage, VP of innovation at Vitaquest International, about the company’s 2027 consumer trends forecast and how it’s shaping supplement formulation.
News|Articles|June 17, 2026
Vitamin D in Mushrooms
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Key Takeaways
- Ultraviolet exposure drives conversion of mushroom ergosterol into vitamin D, most commonly ergocalciferol (vitamin D2), through a photochemical process.
- Sunlight and controlled UV lamps can be used to increase vitamin D levels in mushrooms, implying that processing conditions meaningfully influence nutrient composition.
Fun Fact! When exposed to sunlight or UV-light, mushrooms can produce vitamin D.
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Fun Fact! Like humans, when exposed to sunlight, mushrooms can produce vitamin D. Ergosterol, the mushrooms’ plant sterol, converts to vitamin D when exposed to sunlight or a sunlamp.
Source: American Mushroom Institute. Mushroom Facts. Accessed June 17, 2026.
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