What Foods Cause Acne?
By Teresa Alasio, MD | Intentional Self Aesthetics, New Canaan, CT
This question comes with a lot of guilt attached. Patients confess their chocolate habit or their pizza night like they are admitting to something. So let me start with reassurance: food is rarely the main cause of acne. Hormones, genetics, and follicle biology drive most breakouts. But diet is not irrelevant either, and the research has gotten more interesting in recent years.
The strongest evidence points to high glycemic foods. These are foods that spike your blood sugar quickly, like white bread, sugary drinks, candy, and heavily processed snacks. Blood sugar spikes trigger a cascade of insulin and related growth factors, which can increase oil production and inflammation in the skin. Studies have shown that people who shift to a lower glycemic diet often see their acne improve.
Dairy has a more modest association, and curiously, skim milk shows a stronger link than whole milk in the research. The connection likely involves hormones and growth factors naturally present in milk. The evidence is not strong enough for me to tell every acne patient to quit dairy, but if you suspect a connection, a few weeks without it is a reasonable experiment.
Now for the myths. Chocolate by itself has never been convincingly shown to cause acne. Most chocolate studies are confounded by sugar, which brings us back to the glycemic story. Greasy food does not cause greasy skin. Eating french fries does not send oil to your pores, although touching your face with greasy hands does not help anything.
The most honest answer is that food triggers are individual. Some patients clearly flare with certain foods. Others can eat anything without consequence. If you want to investigate, keep it simple: change one thing at a time and give it a month.
And if cleaning up your diet has not cleared your skin, that does not mean you failed. It means your acne needs more than a dietary fix. That is where I can help. Come see me at Intentional Self Aesthetics in New Canaan and we will build a plan based on your skin, not on guilt.
