medicated dietary supplement containing isoflavanoid or a metabolic precursor thereof for combating cancer, cardiovascular disease, menopausal symptoms, benign prostatic hyperplasia, androgenic alopecia, acne, hirsutism and osteoporosis; medicated dietary supplement containing lignan or a metabolic precursor thereof for combating cancer, cardiovascular disease, menopausal symptoms, benign prostatic hyperplasia, androgenic alopecia, acne, hirsutism and osteoporosis