healthy bones Mushrooms

6. Mushrooms

Mushrooms are the only vegetarian food that can make vitamin D naturally. This is because ergosterol, which is the pro-vitamin contained within mushrooms is converted into vitamin D2 when exposed to the sun’s ultraviolet (UV) rays. This process is much like what happens when your skin absorbs vitamin when exposed to the sun.

Keep in mind, however, the mushrooms must have been exposed to UV rays to contain vitamin D.