Walnut halves have a lot of dietary fibre meaning they keep your digestion ticking over nicely if you eat them regularly. They are also a great source of manganese and copper, as well as micronutrient molybdenum and lots of antioxidants. Omega-3 fatty acids have been found to be critical as part of a healthy diet. Usually found in fish and some meats, walnuts offer a vital non-animal source of this essential nutrient. Mammals are unable to synthesise Omega-3, so we need regular topping up. Add walnut halves to your diet and keep on top of your requirement while reducing your risk of heart attack and strokes.