Ephedra sinica, also called ma huang, is a plant native to Asia, though it also grows in other areas around the world. It’s been used in Chinese medicine for thousands of years (1, 2). … 展开

Much of the studies examining the effects of ephedra on weight loss occurred between the 1980s and early 2000s — before supplements containing ephedrine were banned.… 展开

Many studies examining the weight loss effects of ephedrine have combined this ingredient with caffeine.
The combination of ephedrine and caffeine appears to exert … 展开

Doses of ephedrine used in research vary, with intakes of less than 20 mg per day considered low, 40–90 mg daily considered moderate, and doses of 100–150 mg per day considered … 展开