But your body uses only half as much folic acid from food as from supplements. A large study found people who did not take supplements had 10-15 percent higher homocysteine levels than those who regularly took multivitamins or B vitamins. Eaters of high-protein diets, notably animal protein. The body makes homocysteine from protein, says Kilmer S. McCully, M.D., originator of the homocysteine theory. Protein-rich plant foods are OK because they usually contain enough B vitamins to curb homocysteine.
Smoking suppresses folic acid levels.
Heavy coffee drinkers. Recent Norwegian research finds that drinking more than 5 cups daily may raise homocysteine. 1 cup shredded low-fat cheddar cheese Spray tortillas on both sides with canola oil. Combine lettuce, onion, chilies, avocado, tomato. Combine salsa and beans.