Don't panic—you can enjoy your corn on the cob if it's non-GMO; we're talking about modified cornstarch, dextrose, maltodextrin, and corn oil here. All are high in omega-6 fatty acids, which can promote inflammation, cancer, and heart disease. While your body needs both omega-6 and omega-3 fatty acids to perform at its full potential, most experts recommend an omega-6 to omega-3 ratio of 1:1—currently most Americans consume about 15 times more omega-6 acids than omega-3s, according to Valerie Berkowitz, R.D., director of nutrition at the Center for Balanced Health and author of The Stubborn Fat Fix.
Unfortunately corn products and other foods high in omega-6s are hard to avoid. "Because they're cheap, they're in almost every product you buy, and therefore you eat more of them," Berkowitz says. However you can cut back by gradually phasing out foods such as margarine, vegetable oil, and soy, and, while you're at it, boost your omega-3 intake by adding salmon, grass-fed beef, halibut, chia seeds, and walnuts to your diet.