How Walnuts Can Psych You Into Eating A Healthier Diet, Yale University Study
So here’s what happened in the study. The team, led by David L. Katz, founding director of the Yale University Prevention Research Center, had 112 participants add about 2 ounces of walnuts to their daily diets for six months. Then, after a break, the participants purposely omitted walnuts from their diets for another six months. Additionally, half of each group were counseled about healthy nutrition, namely about offsetting the addition of the walnuts by cutting calories. Half did not receive nutrition counseling.