Some individuals and companies are now promoting the combination of ephedrine and St. John's Wort for weight loss.
Ephedrine is a non-prescription stimulant medication that increases heart rate and blood pressure.
It probably causes a slight decrease in appetite and slightly increases metabolic rate. St. John's Wort is an herbal product that has some antidepressant activity. Thus, you have a lot more to lose than you may think and extreme caution is warranted. Pyruvate is a 3-carbon intermediary in the metabolism of glucose. The women were first placed on a low calorie diet for 3 weeks and then were placed on a high calorie diet that was designed to cause weight gain.