Nutrition & Food

·

Study

UV Light Boosts Vitamin D2 in Button and Shiitake Powders

UV Light Boosts Vitamin D2 in Button and Shiitake Powders

Button mushroom, Shiitake

What they found

UV exposure made button and shiitake mushroom powders produce up to 14 times more vitamin D2.

UV exposure made button and shiitake mushroom powders produce up to 14 times more vitamin D2.

The number

up to 14 times more vitamin D2

How solid is it?

Lab dish

Lab dish

Lab – chemical analysis

Lab – chemical analysis

Evidence ladder: Lab dish → Animal → Early human → Strong human. Reviews summarize earlier research.

At a glance

Latin name

Agaricus bisporus, Lentinula edodes

Agaricus bisporus, Lentinula edodes

Compound

vitamin D2; ergosterol

vitamin D2; ergosterol

Published in

Applied Sciences

Applied Sciences

Covered in Shroom Scan

Section

HEALTH & WELLNESS

HEALTH & WELLNESS

As it ran in Shroom Scan

Vitamin D2 Boost

Vitamin D2 Boost

When exposed to UV light, white button (Agaricus bisporus) and shiitake (Lentinula edodes) powders produced up to 14 times more vitamin D2. Heat + UV worked best for white button, while shiitake retained more D2 and ergosterol with UV alone, making these mushrooms a reliable, plant-based source of shelf-stable vitamin D.

When exposed to UV light, white button (Agaricus bisporus) and shiitake (Lentinula edodes) powders produced up to 14 times more vitamin D2. Heat + UV worked best for white button, while shiitake retained more D2 and ergosterol with UV alone, making these mushrooms a reliable, plant-based source of shelf-stable vitamin D.

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