Ephedra was the king of metabolism boosters when it was legal for sale over the counter, which is why women flocked to buy popular products like MetaboLife and Xenadrine RFA-1. Since then, it has been much more difficult to find effective ingredients that could effective boost metabolic rate for an increase in calorie burn. Thanks to advances in over the counter weight loss supplements, products that contain the latest cutting edge fat burning ingredients such as PEA (2-Phenylethylamine), Hordenine, Synephrine and Yohimbine HCL can give women a legal and safe alternative to Ephedra.
Suspect you have a sluggish metabolism? You might have hypothyroidism, or an underactive thyroid gland, which afflicts about 25 percent of American women — many of whom don't know they have the condition, according to the American Association of Clinical Endocrinologists. "The thyroid gland controls your body's metabolism, so one of the first signs that it may be off is an inability to lose weight ," explains Pamela Peeke, ., professor of medicine at the University of Maryland and author of Fight Fat After Forty . Your doctor can determine if you're suffering from hypothyroidism by running a blood test. If you do have an underactive thyroid, you'll be treated with a synthetic thyroid supplement, which you will need to take for the rest of your life (it will return your metabolism to normal, so it should be easier to drop unwanted pounds ).