To study the efficacy of Nigella sativa in central obese men on serum freetestosterone, body weight, waist circumference, blood sugar, lipid, uric acid, adiponectin, hs-CRP, and side effects in the treatment group compare to control. An experimental, clinical test, double blined with placebo control, pre-test and post-test design. Subjects are 30-45 years old, devided into the treatment and co…