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What you eat not only goes straight to your hips, it's also mirrored in your complexion. According to Valerie Goldburt, MD, PhD, a dermatologist with New York and New Jersey-based Advanced Dermatology and the Center for Laser & Cosmetic Surgery, proper nutrition can have a major impact on the way your skin looks and feels."Current research suggests that processed foods and high-fat dairy products can exacerbate acne, promote inflammation and cloud a clear complexion. Other evidence indicates that foods high in protein and antioxidants (fruits and vegetables in particular) can have anti-aging effects. Understanding the latest Dietary Guidelines and how they impact on skin is key to solving the puzzle of selecting foods that feed a clear complexion," adds Goldburt.
In 2010, the United States Department of Agriculture released its latest Dietary Guidelines , while this year it released a new icon for healthy eating called MyPlate. Both recommend that Americans eat more healthy foods such as fruits, vegetables, whole grains, fat-free and low-fat dairy products, and seafood. The guidelines also encourage people to consume less sodium, saturated and trans fats, added sugars and refined grains such as white flour. No foods are off-limits, but the guidelines encourage portion control and calorie modification.
In general, Goldburt is in agreement with these guidelines, noting that they are a step in the right direction toward a skin-healthy diet, as well as a diet that can reduce the risk of heart disease, cancer and obesity. She does, however, feel it's important to limit milk and milk products to one or two servings a day rather than the three recommended. The data suggests that dairy products can be problematic for people with acne and other inflammatory skin conditions. These products may prompt the body to produce more of the male hormones, called androgens, which cause more oil and sebum that can clog pores. Additionally, dairy produced in non-organic farms may contain external hormones and pesticides, which can exacerbate skin conditions. Goldburt recommends eating calcium-rich vegetables such as spinach and collard greens to compensate for eating less dairy.
According to Goldburt, "It also appears that following a low-glycemic diet (which is what the Dietary Guidelines recommend) is a key to clear skin." This is a diet that is low in refined carbohydrates and processed foods and high in produce and lean protein, which helps to keep the blood sugar stable. It's been theorized that a high-glycemic diet can lead to insulin resistance, where the body needs to produce ever-increasing amounts of the hormone insulin in order to clear glucose (sugar) from the blood. Insulin resistance has been definitively linked to high blood pressure, diabetes, and heart disease, and there is evidence that it also leads to acne and more skin inflammation. "Further research is needed, but a few studies suggest a benefit for acne in following a low-glycemic diet," she notes.
Following are Goldburt's recommendations for following the latest Dietary Guidelines and selecting foods that feed a clear complexion: