Table 3.

Sources of exposure for ADHD environmental risk factors: insufficient exposure associated with increased risk of ADHD

Risk factor	Dietary sources of exposure
Copper	Liver, turnip greens, crimini mushrooms, molasses, sesame seeds, nuts (cashews, sunflower seeds), legumes, soybeans, and barley
Folate/Folic Acid	Spinach, legumes, fruits (i.e., citrus fruits and juices), broccoli, liver, and fortified grain products
Iron	Red meats, poultry, fish, legumes, soybeans, molasses, spinach, and iron-fortified foods
Omega-3 fatty acid	Fish and fish oils, shellfish, walnuts, flaxseed, soybeans, and canola oil
Zinc	Meat, shellfish, whole grains, legumes, yogurt, and cheese