A low fiber diet can essentially cause depletion of useful bacteria, which can have a negative impact on the gut ecosystem, where millions of healthy micro-organisms might be extinct. In a recent study published in Nature, it was mentioned that people who consumed a fat rich, low fiber diet have lower lifespan compared to those who consume a high fiber diet.
Additionally, when the number of the beneficial bacteria is below the minimum level, then other bacteria might also be extinct.
In a research conducted by the Stanford University scientists, low fiber diets in mice with healthy community of microbes in their intestines can reduce the microbe species as well as count. The researchers also found that once a bacterium has been depleted, the action is irreversible and are not seen in the corresponding generation of the species.
In addition, a large number of mice, who were returned to a high fiber diet after the experiment, never returned to their original health.
According to Dr. Justin Sonnenburg, who led the study, fiber is essential for human body even if it cannot be digested. He also mentioned that it is the main source of food for the gut microbes, according to Latinos Health.
"We would have difficulty living without them," he said, via a Stanford University press release. "They fend off pathogens, train our immune systems and even guide the development of our tissues."
However, Sonneburg also suggested that there is an alternative way to make sure that the bacteria are restored again in the intestines.
He suggests modifying the "cultural practices" to make sure that the health of the intestinal microbes is restored. Actions like reducing the intake of antibiotics can be seriously helpful, while extreme practices may include transplanting the bacteria.