The Science of Satiation October 16, 2010Posted by Kyle in Behavior, Biology, Chemistry, Health, Nutrition, Uncategorized.
Slow down or you’ll get a stomach ache!
My parents always told me that if I eat my food really fast, I may feel sick later. I am sure most people have experienced this at least once in their life. It seems that the reason for this is…that the faster you eat, the faster your stomach fills up. Your stomach ends up being full, or over-filled, before your body realizes it. By the time you do feel full, it is too late to stop eating and your stomach may feel like it’s going to explode.
It’s bad enough that your favorite meal can cause you pain after you devour it, but that’s not all it will do. Common sense should tell you that eating too much of something can potentially lead to being overweight. So if you’re eating too fast you can end up doing just that, gaining a lot of weight. An article from the British Medical Journal points out that eating too fast triples the risk of being overweight. Makes perfect sense…more food in equals more pounds put on. But the next question remains: what are the mechanisms behind all of this?
The science of satiation
An article out of The Endocrine Society’s Journal of Clinical Endocrinology & Metabolism (JCEM) points out that gut hormones my play a part in why people who eat fast end up overeating. As Alexander Kokkinos, MD, PhD, of Laiko General Hospital in Athens, Greece points out, gut hormones that signal the brain to stop eating may be impacted by the rate of eating. The hormones that Kokkinos article examined were peptide YY (PYY) and glucagon-like peptide (GLP-1) which work to signal to us that we are full after a meal. For the study, the researchers took blood samples from participants after they had all eaten the same meal, however, the amount of time each participant took to eat the meal varied. Their results showed that the participants who took longer periods of time to eat the meal had higher levels of the gut hormones and felt more full than those who ate their meals faster. So what does this all mean?
Your body tries its best to tell you stop eating, but if you don’t get the signal in time it doesn’t matter. As many Americans go about their day, they consume a massive amount of calories for very little cost. Going through the drive through doesn’t burn nearly as many calories as chasing down a woolly mammoth. Our early ancestors couldn’t go through the drive through for dinner, they had to work for their meal. Not only that, they probably didn’t eat nearly as much as we do today. Consuming a ton of calories and burning very few makes someone more likely to be overweight, but if you add in the fact that some people are consuming their meals in only a few minutes and eating large portions, these people are at a much higher risk of gaining weight. So next time you sit down for a meal, try and eat slowly. This will give your gut time to tell your brain that it’s time to quit eating. Your gut will be happy, and you may just lose a few pounds in the long run.