4 Types of Gut Bacteria Linked to Living Up to 100 Years

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A researcher from Harvard University recently discussed how certain bacteria in the human gut could influence longevity, potentially helping people live up to 100 years or more.

During his appearance on The Drew Purohit Show, Dr. William Li highlighted an Italian study that analyzed gut bacteria in volunteers, with the oldest participant being 114 years old.

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The study found that four types of bacteria were particularly abundant in the intestines of centenarians: Odoribacter, Oscillibacter, Christensenella, and Akkermansia, suggesting a link between these bacteria and longevity.

These bacteria are part of the gut microbiome, an ecosystem of microorganisms that play a vital role in various bodily functions, including digestion, immunity, and mental health.

Dr. Li explained that while it has not yet been proven that these bacteria directly extend lifespan, research indicates they offer numerous health benefits.

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For example, Odoribacter boosts the immune system and may protect against harmful bacteria like Escherichia coli. Some evidence also suggests it could help prevent cancer.
Studies in Japan have further shown that the Odoribacteraceae family, to which Odoribacter belongs, may promote longevity.

Dr. Li described Oscillibacter as a “natural statin” because it helps lower bad cholesterol, improve good cholesterol, and protect heart health. It also enhances insulin sensitivity, which is crucial for longevity and preventing conditions like type 2 diabetes.

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Akkermansia has been linked to reduced inflammation, improved metabolic health, and stronger defenses against cancer. It may also support brain health and cognitive function.

As for Christensenella, while its direct benefits are not yet fully understood, research suggests it supports a healthy metabolism and may help prevent disorders such as diabetes, obesity, and inflammatory bowel diseases.

Where Can These Bacteria Be Found?

Dr. Li provided dietary recommendations to cultivate these bacteria.
For Akkermansia, he suggested consuming foods like pomegranate, dried cranberries, black grapes, and Chinese black vinegar.

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For the other three bacteria, he recommended storing cooked carbohydrates—such as rice, potatoes, and pasta—in the refrigerator overnight. This process converts starch into resistant starch, which promotes the growth of beneficial gut bacteria.

Finally, Dr. Li cautioned that cultivating these bacteria from a younger age could have significant long-term effects.

Researchers believe that a healthy gut microbiome helps maintain overall health by producing beneficial chemicals that positively influence bodily systems such as immune response and brain function while preventing harmful microorganisms from taking hold.

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