Why does a mushroom supplement contain vitamin D3, and is there enough of it? — Shiitake Mushroom Extract, 20 tablets - Evalar

Vitamin D3 has been included in the formula not to pad it out but for a reason: it contributes to the functioning of the immune system and is especially relevant during periods with little sunlight — in autumn and winter, with a mostly office-based lifestyle or at northern latitudes. It is precisely then that many people lack it without even suspecting it.

Combining shiitake and vitamin D3 is logical: both ingredients are linked to the immune response, and having them together in one tablet is convenient for those who want to support this aspect of health without taking several separate supplements.

As for whether the dose is sufficient, the exact amount of vitamin D3 per tablet is not stated in the product description, so you should not rely on this product as your only source of vitamin D without consulting a specialist. If you suspect a deficiency, it makes sense to have a 25(OH)D blood test and discuss with a doctor whether you need additional supplementation at a higher dose.

As a food supplement, this product is not intended to treat or diagnose vitamin D deficiency — it can be part of a balanced diet as an additional source of this nutrient.