Results: All three groups showed significant body mass index (BMI) decreases, probably due to the low-calorie diet. Among the groups, the most prominent BMI-reducing effect was seen in the ephedra group. In RMR, no significant change in any group or significant difference among the groups was found. No significant adverse effects were observed in serum tests or in the self-questionnaire.
Conclusion: Ephedra combined with a low-calorie diet was effective in reducing BMI. RMR change was not compensated for by the herbal medicines tried. RMR change seemed to be affected by constitution and body composition rather than by medicine. Ephedra and evodia were proven to be safe for short-term use in the herbal form.