Patient: Can any type of foods cause acne such as peanuts, chocolate or peanut butter?? I have acne, but not just on my face but on my back and chest. I was wondering if you could tell me what could be causing it. I have had it for 2 years now but I don’t know why or where it is coming from. I want to stop it but I can’t because I don’t know how or what is causing it. Could you tell me how and what could be causing it??