You know to choose whole over processed foods whenever possible, but when reality dictates otherwise, which ingredients should you shun? O’Brien recommends starting with those that are already
banned abroad. The short list includes hyperactivity-inducing artificial colors, such as Red 40, Yellow 5, and Blue 2; aspartame (think gum, diet drinks), which recent studies link to cancer and diabetes; and GMOs—found in nearly all nonorganic corn, soy, canola, and non-cane sugar—which have not been tested for long-term effects on humans but are designed to withstand high pesticide exposure, O’Brien says. Look for the Non-GMO Project Verified seal on foods containing these ingredients.