Many people avoiding weight gain steer clear of peanuts, fearing their high fat content, but peanuts are actually one of the most nutritionally valuable members of the legume family. Japanese health and beauty website tsuyaplus.jp highlights that peanuts are rich in dietary fiber and magnesium, which help improve gut health and support carbohydrate and fat metabolism. Interestingly, experts suggest that consuming peanut butter may be even more beneficial than eating whole peanuts, as it enhances nutrient absorption and can better support weight management.
Peanuts contain fiber comparable to walnuts and soybeans. Their insoluble fiber absorbs water, increases stool bulk, and stimulates intestinal movement, making peanuts especially helpful for people with irregular bowel movements or insufficient vegetable intake, supporting both digestive health and weight management.
Magnesium, a mineral many people lack, plays a key role in helping insulin function efficiently, allowing dietary carbohydrates to be converted into energy rather than stored as fat. Magnesium also binds with fats, helping regulate fat absorption and maintaining metabolic balance.
The plant cell walls of whole peanuts are hard, meaning chewing alone cannot release all the nutrients. Grinding peanuts into peanut butter breaks down these cell walls, making vitamins, minerals, and amino acids more easily absorbed by the body. Experts note that magnesium is best utilized for fat metabolism when consumed with food. While whole peanuts are usually eaten as snacks, peanut butter can be incorporated into vegetables or used as a dip, making it easier to include in daily meals.
However, not all peanut butters are created equal. Many store-bought brands add sugar and hydrogenated oils for taste. For maximum health benefits, experts recommend choosing unsweetened, pure peanut butter.

