... . Walnuts are rich in phytonutrients and are an excellent source of selenium, phosphorous, magnesium, zinc, iron, and calcium. Walnuts ... coupled with Vitamin-E and niacin.The health benefits of walnuts were first identified in 1937 when researchers discovered ... the last 70 years, numerous other studies that evaluated the effects of walnut and walnut oil consumption on mortality, disease prevalence, ...