The only caution you need to take while consuming portabella mushrooms is to avoid eating them raw. Cell walls of mushrooms are difficult to digest and may cause an upset stomach if eaten raw. Cooking mushrooms helps break down these cell walls and makes it easy to digest them. Portabella mushrooms are not just delicious but are also packed with nutrients for both you and your baby. They are a powerful pregnancy food, high on potassium, fibre, and folate. The B vitamins in portabella mushrooms are great for your baby’s red cell production and nervous system function. Portabella mushrooms are also effective in keeping blood sugar levels in control, thereby staving off gestational diabetes.