I have a good healthy diet. Lots of protein (tuna, chicken ect., i also use protein supplements, weight gainers ect. daily). I eat 6 meals a day. But every once in a while i get this urge to eat some chips, or goto mcdonalds. I love chinese food so i eat that every once in awhile and pizza is my favorite food. Im very thin which is why im taking weight gainers a long with lifting weights to gain mass. How bad is eating these types of junk food every once in a while like say once a day along with my other 6 meals consisting of healty foods?