The Greasy Food Myth, Unpacked

You Should Know: The myth about greasy food causing acne has lingered for a long time. It makes sense that oily food would lead to oily skin, followed by pimples. But unless you’re wiping a slice of pizza on your face, that’s probably not what’s making you break out. 

Going Deeper: Acne is most often caused by genetics and hormones. Pimples are most commonly associated with teenagers because of their surging hormones during puberty. More testosterone and estrogen ramp up the production of sebum by the skin’s sebaceous glands. Excess sebum and dead skin cells clog pores and voilà: a zit. Hormone fluctuations can cause breakouts later in life, too.

Takeaway: Our diet does have an impact on our skin. Some foods can trigger inflammation or affect hormones, including insulin. Research has found an association between adult acne and cow’s milk, as well as diets with lots of high-fat and sugary foods. It’s not conclusive, but some research has shown a low-glycemic diet may improve acne.

Bottom Line: If pimples have followed you from junior high into adulthood, your best bet is to see a dermatologist. It also may help to note when you break out to pinpoint hormone- or food-related triggers.