Walnut nut butter, also regarded as a brain superfood, is as tasty as it is nutritious. The health advantages of walnut nut butter are many for both men & women, as it is high in antioxidants & omega-3 fatty acids. It’s also a great aesthetic aid & goes well with a range of foods. 1. Prevent High Cholesterol, Heart Disease, & Other Problems One of the advantages of walnut butter is that it helps to strengthen & diversify your gut bacteria. These bacteria are in charge of a range of duties, including preserving your gut lining, which can lower your cholesterol & blood pressure.