26 Sep '13, 12am

Your brain isn't fooled by artificial sweeteners. Here's why that's a problem:

Your brain isn't fooled by artificial sweeteners. Here's why that's a problem:

As it turns out, the brain is, well, smarter than we think it is. A new study has found that artificial sweeteners do not trigger the brain’s reward center in the same way that regular sugar does, suggesting that if we’re left unsatisfied, we may be tempted to turn to the real thing later on. The study identified a signal in the brain that distinguishes between energy-supplying sugars and their zero-calorie alternatives. When sugars are consumed, the brain registers the fuel and releases dopamine, a chemical that indicates reward. But in the absence of usable energy—that is, if there are no calories that can be broken down—dopamine isn’t released, according to the study. Although the research was conducted on mice using behavioral testing involving sugar and sugar substitutes while simultaneously measuring brain circuits for reward, the researchers believe the findings app...

Full article: http://www.runnersworld.com/weight-loss/your-brain-isnt-f...

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