Beyond heart health, walnuts stand out as a strong source of antioxidants. They contain vitamin E, melatonin, and polyphenols — compounds that help neutralize free radicals and reduce oxidative stress. This protection at the cellular level can play a role in slowing signs of aging and supporting the immune system.
The combination of antioxidants and healthy fats also supports brain function. The omega-3s in walnuts contribute to cognitive health by promoting neural communication and reducing inflammation in brain tissues. Regular consumption may help improve memory and mental clarity.