6.5 oz No added sugars, salts or flavors. Low Calorie, Low Fat, Low Carb, & High in Protein! Ingredients: Peanuts. (No, seriously. That’s all.) Crazy Richard's Peanut Butter got it's start in the 1980s when Richard Marcus started making natural peanut butter in his kitchen. Friends called him "crazy" for focusing on health food at the time, leading to the name. Their products contain 100% US-grown peanuts.