Peanut butter is a natural source of unsaturated fatty acids belonging to the omega-6 and omega-9 groups. Go On Nutrition Peanut Butter is a rich source of plant-based protein especially important for active people and athletes. The carbohydrates found in peanuts have a low glycemic index. The product goes well with both sweet and savory foods. You can use it with cocktails, sandwiches, pancakes, desserts and pastries.