The amount of fat, calories, and carbohydrate content found in walnuts is about 18 grams, 190 cal, and 4 grams, respectively per 1 ounce. Therefore, it is believed that walnut consumption may result in weight gain. However, research conducted by Sabaté et al. (2005) at the Loma Linda University, California, USA have shown that walnut consumption of about 35 grams per day did not result in any significant weight gain among tested individuals over a period of 1 year.
A scientific study indicates that a lack of omega-3 fatty acids (provided by walnuts) cause hyperactivity, irritability, and tantrums. Supplementing a child’s diet with walnuts compensates the deficit in EFAs and alleviates their mood. It is even applicable to adults who are battling depression and stress.