Can Wheat Cause Seborrheic Dermatitis? Actual Picture of Seborrheic Dermatitis Seborrheic dermatitis is a common skin condition that affects many people and is associated with gluten-intolerance (foods containing wheat, barley, rye, oats). It is characterized by scaly, itchy, and red patches on the scalp, face, and other parts of the body. While the exact cause...