The allure of artificial sweeteners — zero calories and a sweet taste — is a strong one, such that up to 180 million Americans use them routinely.¹

There have been concerns from the beginning, however, that consuming synthetic compounds with hyper-sweetness (200 times that of sugar in the case of aspartame) has some serious drawbacks.

One of the most appalling, especially to those consuming artificially sweetened sugar-free and diet products in the hopes of losing weight, is their propensity to fuel weight gain. Researchers wrote in the Yale Journal of Biology and Medicine:²

"Intuitively, people choose non-caloric artificial sweeteners over sugar to lose or maintain weight …

Whether due to a successful marketing effort on the part of the diet beverage industry or not, the weight conscious public often consider artificial sweeteners "health food." But do artificial sweeteners actually help reduce weight?

Surprisingly, epidemiologic data suggest the contrary. Several large scale prospective cohort studies found positive correlation between artificial sweetener use and weight gain."

Although their reputation as a weight-loss aid has held strong since the beginning, it's been known for years that they seem to have the opposite effect.

Recently, a team of Massachusetts General Hospital (MGH) investigators even revealed a potential reason why artificial sweeteners like aspartame prevent, rather than promote, weight loss.³