Healthier Diet May Up Gut Bacteria, Help Health

We each are living with millions of bacteria teeming in our gut that help us metabolize food and stay healthy. Bacteria

Now a new study suggests that shifting to a fiber-filled healthy diet with fruits and vegetables may increase the bacteria species in our gut and that in turn, may improve metabolic abnormalities linked to obesity.

Published in Nature yesterday, the study works in tandem with another in the same issue that suggests having a diverse array of bacteria makes a difference to our health. People with less bacteria diversity had more insulin resistance and inflammation, which are risk factors for cancer. They also were also more likely to gain weight.

In the diet study, researchers looked at the microbial diversity among 45 people who were overweight or obese. The scientists analyzed the number of bacteria genes, dividing the group into those who had low or high bacterial diversity: 40 percent had low; 60 percent high. To start with, the people with less bacterial diversity had higher insulin resistance, triglycerides, and inflammation. Continue reading


Study: Fiber, Gut Bacteria and Colorectal Adenoma Risk

Bacteria

Evidence is strong that consuming high amounts of dietary fiber protects against colorectal cancer. Previous research has suggested that fiber may play a role in colon cancer prevention due to its interaction with trillions of bacteria in our gut.

Now, a study adds to that evidence by focusing on advanced colorectal adenoma, a non-cancerous tumor that has the potential to develop into cancer.

The study, published in The American Journal of Clinical Nutrition, suggests that a high-fiber diet promotes healthy gut bacteria and its byproducts.

Gut microbiota are the microorganisms that live in our digestive tracts – in our stomach, intestines, and colon. We have about 10 trillion human cells in our body, but we have way more – about 100 trillion – microorganisms residing in our gut. A growing body of research is showing that these microorganisms are important to our health – from training our immune system, to producing vitamins and fighting off harmful bacteria. Continue reading