People with three highs need to avoid high-fat, high-sugar and high-salt foods in their diet, eat a light diet, stop smoking and limit alcohol, and actively follow the doctor’s instructions. Three high generally refers to high blood sugar, high blood pressure, high blood fat, need to adjust the diet, appropriate exercise, and follow the doctor’s advice to use medication. In terms of diet, patients with three highs should avoid fatty meat, fried food, animal offal, egg yolks and other high-fat foods, chocolate, milk tea, cream cakes and other high-sugar foods, ham, pickles, bacon, squash, luncheon meat and other high-salt foods. Healthy cooking methods such as boiling and steaming should be chosen, and barbecuing, deep-frying and pickling should be avoided. In addition, patients with three highs should quit smoking and limit alcohol. Patients diagnosed with three highs should actively cooperate with doctors for treatment and maintain a healthy lifestyle.