Scientists are one step closer to understanding the link between different diet strategies and gut health, with new research presenting the first general principles for how diet impacts the microbiota. Researchers from the University of Sydney have found that the availability of intestinal nitrogen to microbes in the gut plays a key role in regulating interactions between gut microbes and their host animal. The study is published today in Cell Metabolism and led by researchers at the University of Sydney's Charles Perkins Centre. "There are many different diet strategies that claim to promote gut health, and until now it has been very difficult to establish clear causality between various types
Gut bacteria play a little-understood role in the body’s energy balance, which is influenced by diet. However, the crucial nutritional components are unknown. A team at the Technical University of Munich (TUM) was able to demonstrate for the very first time that mice without gastrointestinal microbiota grow obese when fed with dietary fat from plant sources, but not from animal sources. One of the important findings of the study is that cholesterol from the animal dietary fat plays a crucial role in what goes on in the intestines. In mice with a normal gut flora, the microbiota are involved in cholesterol metabolism, thereby assisting with the efficient utilization of the animal fats. (Photo:
Have you ever counted calories, sworn off dairy, or purchased an Atkins meal only to find that your diet of choice had little to no effect? In all likelihood, you answered ‘yes.’ And scientists are now about to explain why it is that our diets so often fail. Most of us, writes Dr. Maitreyi Raman, a gastroenterologist and physician nutritionist, “are missing the finer details when it comes to the nutritional composition of food on [our] plates.” So what are these “finer details” that Dr. Raman refers to? It’s the thing we’ve long been told to avoid: bacteria. Deep inside your gut, past your mouth, down your tubular esophagus, through the stomach, lies a complex world of 100 trillion bacteria,