The term 'extinction' is not only used to denote certain rare animal species such as polar bears. The collection of bacteria in the human gut that affects the body (microbiomes) is also on the verge of extinction. Starting from metabolism, immune system to mood and behavior.
In recent years, scientists around the world are gathering evidence, Western diets (eating lots of meat) change microbiomes. Some bacterial species even disappear to undetectable levels.
"Over time we have lost a host of valuable bacteria," says Justin Sonnenburg, a microbiologist at Stanford University in the United States for more than a decade. Now, Sonnenburg and his team have evidence, the cause of this dead bacteria, written from the page NPR, Friday (25/08/2017).
The research team conducted a study focusing on a group of hunter-gatherers in Tanzania, called the Hadza tribe. Their food is almost entirely food found in the forest, including wild fruit, fiber-rich tubers, honey, and wild meat.
Basically, they do not eat processed foods and foods that come from farms.
"They are a very special group of people," Sonnenburg said.
"Only about 2,200 people remain, 200 of them obey the rules of hunting and gathering food," he continued.
Sonnenberg and his colleagues analyzed 350 stool samples from the Hadza tribe taken for about a year. Then compare the bacteria in the stool with 17 other tribes around the world, such as tribes from hunter-gatherers in Venezuela and Peru.
Based on the findings, the composition of a set of bacteria changes over time, depending on the season and type of food consumed.
During the dry season, the Hadza people eat more meat just as Westerners do. Eating meat can lead to the loss of a host of bacteria. Conversely, during the rainy season, the Hadza people eat more berries and honey. These lost bacteria return, although scientists are not so sure, what foods bring this bacteria back.
"I think these findings are really interesting," said Lawrence David, who studies microbiomes at Duke University. "This shows, a collection of lost bacteria can be re-adjusted to the diet.
The Hadza diet can make bacteria in the intestines more healthy. (Photo: Matthieu Paley / National Geographic) USA The term 'extinction' is not only used to indicate certain species of rare animals such as polar bears. The collection of bacteria in the human gut that affects the body (microbiomes) is also on the verge of extinction. Starting from metabolism, immune system to mood and behavior.
In recent years, scientists around the world are gathering evidence, Western diets (eating lots of meat) change microbiomes. Some bacterial species even disappear to undetectable levels. "Over time we have lost a host of valuable bacteria," says Justin Sonnenburg, a microbiologist at Stanford University in the United States for more than a decade. Now, Sonnenburg and his team have evidence, the cause of this dead bacteria, written from the page NPR, Friday (25/08/2017).
The research team conducted a study focusing on a group of hunter-gatherers in Tanzania, called the Hadza tribe. Their food is almost entirely food found in the forest, including wild fruit, fiber-rich tubers, honey, and wild meat.
Basically, they do not eat processed foods and foods that come from farms.
"They are a very special group of people," Sonnenburg said.
"Only about 2,200 people remain, 200 of them obey the rules of hunting and gathering food," he continued.
Sonnenberg and his colleagues analyzed 350 stool samples from the Hadza tribe taken for about a year. Then compare the bacteria in the stool with 17 other tribes around the world, such as tribes from hunter-gatherers in Venezuela and Peru.
Based on the findings, the composition of a set of bacteria changes over time, depending on the season and type of food consumed.
During the dry season, the Hadza people eat more meat just as Westerners do. Eating meat can lead to the loss of a host of bacteria.
During the dry season, the Hadza people eat more meat just as Westerners do. Eating meat can lead to the loss of a host of bacteria.
Conversely, during the rainy season, the Hadza people eat more berries and honey. These lost bacteria return, although scientists are not so sure, what foods bring this bacteria back.
"I think these findings are really interesting," said Lawrence David, who studies microbiomes at Duke University.
"This shows, a collection of lost bacteria can be re-adjusted to the diet.
From the results of this study, the Hadza diet can reduce fat. Researchers realize people who eat more fiber will feed on bacteria in the intestine. Bacteria become healthier.
The Hadza tribe consumes large amounts of fiber throughout the year. They eat fiber-rich tubers and fruit from baobab trees. This staple gives them about 100 to 150 grams of fiber each day. This fiber content is the highest category.
The study was published on the Stanford University Medical Center website on August 24, 2017.
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