Modern hunter-gatherers' guts host distinct microbes | Science News


Support credible science journalism.

Subscribe to Science News today.

Science Ticker

Your daily roundup of research news

Science News Staff
Science Ticker

Modern hunter-gatherers' guts host distinct microbes

Hadza women dig for plant food, which makes their diet rich in fiber and influences the microbes in their gut. The bacteria of the hunter-gatherers' guts are substantially different from those of Westerners and even African farmers.

Sponsor Message

Tanzania’s Hadza hunter-gatherers have guts teeming with bacteria much more diverse than what's found in Italians' intestines. But the foragers don't have Bifidobacterium, which is considered healthy, and do have more Treponema and other microbes that signal disease in Western populations. Hadza men and women even have major differences in their gut microbes.

These differences reinforce the idea that a healthy collection of gut bacteria depends on the environment in which people live and their lifestyle, researchers report April 15 in Nature Communications. The results also show how gut microbes may have helped human ancestors adapt during the Paleolithic period 2.6 million to 10,000 years ago.

Get Science News headlines by e-mail.

More Genes & Cells articles

From the Nature Index Paid Content