Shed Pounds Slowly? Gut Bugs May Be Missing Link
Attempting to shed pounds but feeling a bit discouraged? I read some fascinating research that I hope will motivate you. Please give the healthy choices you’re making a bit more time!
The study itself was published last week in the journal Cell Host & Microbe and was conducted by a team led by Jeffrey Gordon, Director of the Center for Genome Sciences and Systems Biology at Washington University. I’ve been following Gordon’s lab for some time. In fact, I shared their previous research in my book, Skinny Gut Diet. If you have a copy you know that Gordon suggested that a person’s potential for obesity can partially be predicted. He measures the ratio of Bacteriodetes (I called those the Be Skinny bacteria) to Firmicutes (Fat bacteria) in their gut. Gordon’s initial research was done with mice. We decided to run our own lay research study with our human Skinny Gut group (you can meet them all in the book) and we found Gordon’s observations to hold true. Fascinating.
Gordon’s more recent lab results suggest that despite your best efforts, your gut may not be on your side with regards to losing those extra pounds quickly! If you’re hosting an overgrowth of unhealthy bacteria in your gut, your microbiome (the community of microbes in your gut) may actually require extra time to reset back to health if you are making a switch from a Standard American Diet (SAD), high in refined carbohydrates and saturated fats to more healthy, calorie restricted, plant-based fare.
Initially in the study, fecal samples from humans following the SAD diet were compared to those following a healthy diet. I’ve blogged often on bacterial diversity, and how increased diversity of bacteria in the gut is often an indicator of vibrant health. Once again this has been found to be the case. The people on the SAD diet demonstrated a much less diverse microbiome than those on the healthy diet, suggesting generally that the SAD group would also be more prone to immune issues, digestive issues and silent inflammation.
Next the researchers implanted germ-free mice with the two sets of human donor’s gut microbes. Once implanted, both groups of mice were then fed the same healthy plant based diet.
Listen up here – this is the very interesting part. Although all of the mice responded overall to the diets, the group implanted with the SAD diet microbes responded more slowly than the mice that had only received more healthy microbes. Apparently there seems to be a transitional time needed for the mice with the SAD guts to shed pounds and regain health as efficiently as the more healthy ones.
A fascinating additional quirk in this study was when the SAD mice were placed into the same cages with the healthy mice, their gut health improved more quickly than the SAD mice who were living only with other SAD mice. How wild is that? Communal living anyone?
The practical goal of this research was to gather information that would pinpoint specific bacterial strains. Gordon’s team was seeking microbes that might be used to diversify and balance the gut. Normalized weight and increased health are most certainly the desired outcomes. No doubt, this research will continue well into the future. Hopefully one day research like this will result in a specific probiotic formula designed to combat obesity. But that’s still in the future.
Probiotics help you shed pounds.
So lets get back to you! If you recently switched from a SAD diet to more healthy choices and your weight loss isn’t diminishing as quickly as you might hope – hang in there. Good news – prior research shows clearly that your good microbe populations actually shift quickly. It just may take some time until you notice those changes in your skinny jeans.