A recent study done in conjunction with three major American universities has brought a great deal of insight on just how the millions upon millions of microbes in our guts interact with us. However, just to be sure, they do not, in fact, turn us into ravenous, mindless eaters.

Still, the research is compelling. What we eat affects us much more than we realize. The bacterial microbes that live in our digestive systems are infinitely more complex and demanding than previously thought. The study claims that bacteria in our guts have their own particular appetites. This, in turn, affects our own cravings and appetites. Some bacteria have a taste for fat, some for sugar while others prefer protein, etc.

In other words, what is known as our gut microbiome is made up of a diverse amount of bacteria with different nutritional preferences. Strangely enough, these bacteria send signals to our brains influencing our appetites as well. According Dr. Carlo Maley, one of the authors of this particular study, “Bacteria within the gut are manipulative.”

While this may seem like something straight out of a silly sci-fi movie, it’s not as bad as it sounds. That is, we are not effectively zombies forced to yield to the whims and appetites of microscopic bacteria. The study does suggest where our cravings for particular kinds of food may come from. Especially, when we binge or indulge for a long period on specific types of foods. Essentially, if we eat a lot of sugar and fat, our bodies are going to continue to crave sugar and fat because those are the bacteria we are indulging.

Fortunately, Dr. Maley states that we can affectively alter the bacterial landscape in our guts within 24 hours by eating appropriately. For example, if we eat vegetables and protein we directly affect and nurture those particular bacteria affected by such nutrients. We also, starve out or diminish the bacteria hungry for sugar and fats.

This recent study makes a compelling argument for probiotics and foods rich with healthy bacteria such as yogurt as well. More and more research seems to indicate that probiotics may have a positive effect on our digestion and overall health.

How’s your digestion these days? Any particular cravings that come and go?