A tree nut in the walnut family is the walnut (Juglans regia). They have been a staple of the human diet for thousands of years and have their origins in the Mediterranean and Central Asia. These nuts are more antioxidant-rich than most other foods and are high in omega-3 fats. Consuming walnuts may enhance brain health and shield against cancer and heart disease (1Trusted Source). Walnuts can be added to salads, pasta, breakfast cereals, soups, and baked products in addition...