A recent study, published in the journal Nature Medicine, shows that microbiota, aka gut bacteria, play a crucial role in protecting humans against food allergies.
During the study, two groups of mice without their own bacteria received gut bacteria from either healthy human babies, or from human babies with cow’s allergy milk. The first group of mice didn’t experience any allergic reaction to cow’s milk, while the other had allergic reactions to cow’s milk.
Senior study author Cathryn R. Nagler, Ph.D., a professor in food allergy at the University of Chicago in Illinois, USA, says: “This study allows us to define a causal relationship and shows that the microbiota itself can dictate whether or not you get an allergic response.”
A new Finnish study, published in the journal Frontiers in Microbiology, finds that endurance exercises may change the composition of gut microbiota.
The researchers developed a 6-week program of bicycle training and enrolled 17 overweight women for this program. All women led a sedentary lifestyle before joining the study.
At the end of the program, the scientists noticed that the number of proteobacteria, gut bacteria that cause inflammation, decreased and the number of beneficial bacteria Akkermansia, linked to better metabolism, increased.
The corresponding author of the study Satu Pekkala, an Academy of Finland research fellow affiliated with the Faculty of Sport and Health Sciences of the University of Jyväskylä, explains: “These changes are beneficial for cardiometabolic health, because VLDL transports lipids from the liver to peripheral tissues, converts into ‘bad’ LDL [low-density lipoprotein] cholesterol in the circulation, and thus has detrimental cardiovascular effects.”
Fibers and natural sugars that help grow of the good bacteria in your intestine are called prebiotics. Together with probiotics, which are healthful bacteria, they help to improve our health. At the present moment, prebiotics is a relatively new field of research. Many studies are needed to investigate all the health benefits of prebiotic foods. Nevertheless, they are considered a valuable dietary component. This is the ultimate list of foods that are the best-known sources of prebiotics:
Onions, shallots, and spring onions
Red kidney beans, baked beans, and soybeans
Most of the prebiotic foods are suitable for vegans and people following other nutrition plans, making it possible for them to eat a well-balanced and healthful diet that also adds to good gut health.
New research from the University of California, Berkeley, discovered that hundreds of different human gut bacteria are electrogenic (they can generate electricity).
These types of bacteria include Listeria monocytogenes (causing of diarrhea), Clostridium perfringens (causing gangrene), and Enterococcus faecalis (acquired during hospital stays), as well as benign bacteria in the gut such as probiotics. The researchers observe, while others, such as the Lactobacilli strains, play a role in fermentation.
Prof. Dan Portnoy explains: “The fact that so many bugs that interact with humans, either as pathogens or in probiotics or in our microbiota or involved in the fermentation of human products, are electrogenic — that had been missed before.”
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