Recent research suggests that eating whole-grain rye or wheat influences serotonin levels in plasma and microbiota with certain effects for health such as decreasing the risk of developing type 2 diabetes.
The study was performed by the University of Eastern Finland and the International Agency for Research on Cancer in Lyon, France.
In the course of the study, the researchers investigated how whole grains influence different metabolites in the blood.
The analysis of the received blood samples from people eating different products showed that people who had plenty of whole grains in their diet had significantly lower serotonin levels in plasma than those who ate a low-fiber diet.
Study co-author Kati Hanhineva, Ph.D., explains: “Whole grain, on the other hand, is known to reduce the risk of diabetes, and on the basis of these new results, the effect could at least partly be due to a decrease in serotonin levels.”
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.
Several studies demonstrate that cocoa increases the number friendly gut bacteria and reduce inflammation in the intestine.
A team of scientists from the Department of Food and Nutritional Science at the University of Reading, UK, measured higher levels of Lactobacillus and Bifidobacterium species in the intestines of human volunteers who drank chocolate milk for 4 weeks.
Previously, this team demonstrated that components in cocoa can reduce the growth of Clostridium histoluticum bacteria, that are found in the guts of those people who suffer from bowel disease.
Unsweetened cocoa powder or dark chocolate with the high content of cocoa are the closest options to the cocoa used in these studies.
A recent research by the team of researchers led by Kirsten Tillisch from UCLA found associations between 2 kinds of gut microbiota and how they affect human emotions and feelings.
For their research, the scientists analyzed fecal samples from 40 healthy women aged between 18 and 55. They also scanned the brains of participants. The researchers concluded that women with a greater abundance of Bacteroides in the gut showed the greater thickness of the gray matter in the frontal cortex and insula.
The researchers admit that the sample studied in the research was very small. Nevertheless, it is clearly seen that there’s something going on between our microbiome and the thoughts and feelings we experience.
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