Cremini also spelled crimini (brown) mushrooms are proven to reduce inflammation, prevent cancer or heart disease; they supply a lot of B vitamins, antioxidants and phytonutrients like CLA and L-ergothioneine; and provide copper, zinc, selenium, manganese, potassium, and phosphorus.
Selenium is required for proper functioning of the enzyme glutathione peroxidase. The other two minerals zinc and manganese are required for proper functioning of the enzyme superoxide dismutase.
In the protein category, maybe the best protein component in brown mushrooms is the amino acid known as ergothioneine. This acid is derived from histidine, and it has proven antioxidant benefits. In fact, ergothioneine has been shown to function as an antioxidant, but in animal studies, it has also proven to protect against chronic oxidative stress.
Brown button mushrooms are amazing for heart health. The potassium, fiber, and vitamin C content in them all contribute to good cardiovascular health. Eating mushrooms, which are also low in sodium, helps to lower blood pressure and decreases the risk of high blood pressure and cardiovascular diseases.