Evidence supporting the use of: Ephedrine
For the health condition: Fat Metabolism (poor)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Ephedrine is a sympathomimetic amine derived from plants of the Ephedra genus, and has a long history of use as a stimulant and decongestant. Its use for supporting or enhancing fat metabolism has been supported by scientific studies, particularly in the context of weight loss and obesity treatment. Ephedrine acts primarily by increasing the release of norepinephrine, which stimulates beta-adrenergic receptors, thereby increasing metabolic rate and promoting lipolysis (the breakdown of fat).

Clinical studies in the 1990s and early 2000s demonstrated that ephedrine, especially when combined with caffeine, produced modest but statistically significant increases in weight loss and fat oxidation compared to placebo. These effects are attributed to increased thermogenesis and appetite suppression. A 2005 meta-analysis (Shekelle et al., JAMA) concluded that ephedrine-containing products produced a mean additional weight loss of about 1 kg per month over placebo for up to six months.

However, concerns over cardiovascular and psychiatric side effects led to regulatory bans or restrictions in many countries. Despite its efficacy, the evidence quality is moderate due to short study durations and frequent combination with other substances like caffeine. Thus, while there is scientific validation for ephedrine’s effect on fat metabolism, its safety profile limits clinical use.

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Products containing ephedrine

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