A cheeseburger may raise a few eyebrows but in fact, one a week may not necessarily be a bad thing. Meat contains all the essential amino acids needed for cellular growth in a ratio that has not been replicated in any man-made substitute. Additionally, a large portion of the fat in a meat like beef is monounsaturated oleic acid (just like in olive oil), which may help lower LDL or ‘bad cholesterol.’