Spread 2 tablespoons of this tasty peanut butter substitute on crunchy celery stalks. “Sunflower seed butter is loaded with vitamin E, a powerful antioxidant,” says Dawn Jackson Blatner, R.D., author of The Flexitarian Diet. “And celery is an underrated superstar with blood-building vitamin K, blood pressure-regulating potassium, cell-building folate, and fiber.”