Functional mushrooms are praised for their potential healing properties and their rich vitamin and mineral profile. They offer a healthy source of Vitamin D, B, C and much more, but this begs the question: Do functional mushrooms have any side effects? A supplement that boasts this many net positives for consumption has to be too good to be true right? You might be surprised to learn how much these mushrooms have to offer while giving little to no side effects. In this blog post we will explore the potential side effects of taking functional mushrooms.