Mushrooms have been used for thousands of years to provide sustenance, vitamins and minerals, and to help the human body fight off disease and other ailments. Today, many species are still used for the same reasons, but eating organic is now a necessity. Because mushrooms are very porous, they easily absorb pesticides and fungicides. This makes mushrooms far too risky, even considering their benefits, unless you know they’re grown with love and care, organically.