Some mushrooms, such as maitake or UV-exposed portobello, naturally produce Vitamin D2 when they are exposed to the sunlight. And so, it is advised to keep them in sunlight for atleast 30 minutes before cooking to make them rich in Vitamin D2. Apart from this, mushrooms also contain antioxidants and brain-boosting nutrients like B-vitamins, which are important for proper functioning of nerves. So, adding sun-exposed mushrooms to your meals is an easy way to increase Vitamin D levels, especially for vegetarians.
