Moderate UV light is best when it comes to boosting the vitamin D content of edible mushrooms, study finds

MedicalXpress | Mai 04, 2026

Researchers at McGill University have discovered that moderate ultraviolet (UV) light exposure is best when the technique is used to enhance vitamin D₂ in edible mushrooms. Excessive exposure leads to nutrient degradation or a plateau effect, they found. The paper also provides quantitative guidance.