Still others tout wheat as a skin-friendly choice, thanks to skin-supporting minerals like zinc and the high level of antioxidant vitamin E, found particularly in wheat germ. The most reasonable explanation for this divide may be that it all comes down to your personal relationship with the grain.
Beyond dermatitis herpetiformis, acne, hives, psoriasis and atopic dermatitis are common allergic reactions to wheat. And for some, identifying a wheat or gluten allergy can be the missing link to clear skin. It appears that when the body views wheat or gluten as an allergen, it may become inflamed and experience difficulty with nutrient absorption, both of which can lead to skin issues.
“It was a nightmare figuring out what was aggravating my skin,” says Amie Valpone, Culinary Nutritionist for The Healthy Apple who was diagnosed with a gluten intolerance. “I was on Accutane. I had big,red, cystic acne. My skin was terrible. About a month after I cut the gluten out my skin looked totally fine. Now people tell me I look so much younger than I used to.”
But beyond personal experience, there’s still a lack of scientific evidence. “[Wheat and gluten’s] connection with acne and eczema is not so clear,” says Valori Treloar, M.D., a Newton, Massachusetts dermatologist. Yet another possibility is that wheat may aggravate existing autoimmune conditions, but not be the real culprit in skin issues. “It’s not to say that all skin rashes and conditions are caused by wheat. Many are not. But an incredible number are,” says Davis. “It’s important for the consumer to be aware that wheat and/or gluten and skin conditions is a very common association.”
And it turns out that even if you have flawless skin and no wheat allergy, you may want to look closely at the type of wheat products in your diet for the sake of your skin. “Wheat, with its uncommonly high glycemic index, triggers higher blood sugar than nearly all other foods, thereby triggering insulin more than nearly all other foods” says Davis. However, 100 percent whole wheat bread has a much lower glycemic index than more processed breads and triggers a more moderate blood sugar response.
Elevated insulin is linked to increased sebum production that can clog pores and lead to breakouts. What’s more, “Wheat can exert age-advancing skin effects, such as wrinkles and lost elasticity, through the formation of advanced glycation end products [AGEs].” An accumulation of AGEs in the body leads to visible signs of aging.
Still, there are many variables to consider before you blame wheat for your fine lines. “The glycemic load of the wheat is affected by its form, preparation and the foods that accompany it when ingested,” Treloar explains. “If you eat white bread with nothing else, the blood sugar and insulin response will be fast and high. During that time, the sugar can bind to certain amino acids in collagen [the structural protein in the skin] and cause distortion in the structure and function of the collagen. It becomes an AGE.” But wheat is just one of the foods that raises insulin levels and leads to AGE formation. Sugar and refined carbs do the same, and, ironically, many wheat-free bread products made with corn, rice and potato do not provide much greater blood sugar stability.
Those struggling with unexplained acne or rashes may want to explore a possible connection to wheat. But the rest of us will have to decide, from meal to meal and bite to bite, whether wheat is our skin’s friend or foe.
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