Bariatric surgery often helps people lose weight – just ask Al Roker. But it turns out the weight loss associated with bariatric surgery may have less to do with having a smaller stomach and more to do with how the surgery permanently changes one’s gut microbiota. A new study found that people who have undergone bariatric surgery have different gut microbiota from obese people who haven’t undergone the surgery. When these microbiota were introduced to germ-free mice, the mice that received microbiota from people who had had bariatric surgery gained less weight than mice who had received microbiota from people who hadn’t had the surgery.
As we’ve mentioned here before, once they start figuring out which microbes promote healthier weights and which don’t, it will revolutionize how we approach weight loss. What the current study portends is that risky bariatric procedures may soon be unnecessary for helping people lose weight.
Or, if you’re really desperate, you can undergo some extreme stress to lose weight. Another recent study has shown that extreme stress can induce white fat cells to turn into higher-energy-burning brown fat cells. Um, don’t try this – wait until they figure out the gut microbiota thing.