Eat Nuts Despite being high in fat, nuts are incredibly nutritious and healthy. They are loaded with magnesium, vitamin E, fiber and various other nutrients . Studies show that nuts can help you lose weight and fight type 2 diabetes and heart disease In addition, about 10-15% of the calories in nuts are not even absorbed by the body, and some evidence suggests that they can boost metabolism. In one study, almonds were found to increase weight loss by 62% over complex carbohydrates.