Peanut butter is a good source of plant-based protein and rich in heart-healthy monounsaturated and polyunsaturated fats. It is also low in carbs, making it a great spread for those with diabetes. Additionally, peanut butter is rich in antioxidants like vitamin E, which can be included in a diet for chronic disease prevention. Despite its calorie density, peanut butter may actually help you reach your weight-loss goals. One study found that regular peanut intake (including the nuts themselves or a serving of peanut butter made with peanuts and salt only) for six months was able to significantly improve participants’ cholesterol levels.