There are certain foods which have been known to cause acne, among them spinach. If you have problems with acne it is highly recommended that you avoid seafood in general, especially oysters, crab, shrimp, and lobster as well as spinach. These foods have been known to cause problems with acne breakouts in people who already have this problem, so you will want to limit your consumption of them as much as possible.
Milk is another food to avoid if you have acne problems as it contains certain hormones as well as antibiotics that can trigger acne breakouts. While this is certainly not true for everyone, there are people who have experienced worsening acne because of certain foods they eat. Because milk also contains iodine, it is better that you stay away from it as much as possible in order to keep your acne from getting even worse.
Although it is true that the jury is still out on whether or not food can actually cause or have a profound effect on acne, there have been studies which indicate that foods like spinach can in fact have an adverse effect on those who already have problems with acne. If you are currently suffering from acne problems, it is highly recommended that you avoid eating spinach along with foods that have a lot of oils in them.