However, it’s possible for you to help to boost your vitamin D levels by incorporating your diet.
Which foods contain vitamin D?
Why are mushrooms good for boosting vitamin D?

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Cutting the mushrooms increases their surface area, which can further increase vitamin D accumulation, says Dr Gurtler.
She also notes that its unclear what impact cooking mushrooms has on their vitamin D content.
How do you know if you have a vitamin D deficiency?
The best way to determine whether or not you have a vitamin D deficiency is with a blood test.