Antioxidants Vitamin C, Manganese, Vitamin K, and polyphenols reduce inflammation and bacterial and cancer cell growth. Studies show reduced number of harmful superoxide free radicals in breast cancer. Reduction of high cholesterol and triglycerides; strengthens immune functioning. NDGA, known for its pronounced antioxidant effect, also increases ascorbic acid (vitamin C) levels in the adrenals. Elevates metabolism, Chi and Yang tonic attributes; immune and digestive tonic.