... last decade. The health benefits of walnuts and walnut oil are similar if the oil is unrefined, fresh (6 month shelf ... source of selenium, phosphorous, magnesium, zinc, iron, and calcium. Walnuts and/or walnut oil provide hefty levels of Vitamins B-1, B ... that evaluated the effects of walnut and walnut oil consumption on mortality, disease prevalence, and disease risk factors have been performed. ...