Are nuts bad or good cholesterol?

Walnuts demonstrate heart-healthy benefits due to the presence of high amounts of omega-3 fatty acids and phytosterols. Omega-3-fatty acids reduce triglycerides levels and only slightly reduce LDL levels (low density lipoproteins; also knowى as the bad cholesterol). Phytosterols appear to slightly lower LDL cholesterol levels, however, the mechanism by which it does this is not entirely known.