Love tree nets do you? You'll love it more now. A new study suggests that snacking on walnuts is healthy for your heart. Few tree nuts a day can help you keep heart disease at bay according to a recent study. The new study found that consuming tree nuts such as walnuts may lower the risk of cardiovascular disease. One of the authors Michael Falk found that consuming tree nuts lowers total cholesterol triglycerides LDL cholesterol and ApoB the primary protein found in LDL cholesterol. These are key factors that are used to evaluate a person's risk of cardiovascular disease.