Study shows how red meat affects heart health via the gut microbiome

A new study has shown how certain bacteria found in the gut microbiome of red-meat eaters increase the risk of heart disease.

@AdamHuntTT
Published Thu, Dec 30 2021 2:00 AM CST   |   Updated Fri, Jan 21 2022 1:13 PM CST

A new study has been published in Nature Microbiology examining the link.

Study shows how red meat affects heart health via the gut microbiome 01 | TweakTown.com

Studies in previous years have correlated diets with high red and processed meat consumption with increased risk of heart disease and strokes, but scientists don't fully understand the mechanisms causing this. The new research has found that a particular bacteria in the gut microbiome is responsible for turning carnitine into a harmful chemical known as TMAO, which promotes blood clotting and clogged arteries. The bacteria are found in larger quantities in individuals who consume more red meat.

Previously, scientists suspected that the saturated fats found in these foods contributed to the higher risks of heart disease and strokes. Saturated fats can boost LDL cholesterol, which contributes to cardiovascular disease. However, Stanley Hazen of the Cleveland Clinic's Center for Microbiome and Human Health, co-author of the study, says the research on saturated fats shows its adverse effects are not enough to explain the increased risks associated with red meat consumption.

Carnitine is a nutrient found in large quantities in red meat, and TMAO has been shown previously to increase the risk of heart disease and strokes. Increasing consumption of red meat in the diets of healthy individuals has been shown to increase TMAO levels in the blood, decreasing when red meat was swapped for other protein sources.

Vegans and vegetarians have very few bacteria responsible for producing TMAO from carnitine. The researchers maintain that the best way to influence your gut microbiome is to change the foods you eat instead of supplementing probiotics.

You can read more from the study here.

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NEWS SOURCES:webmd.com, doi.org

Adam grew up watching his dad play Turok 2 and Age of Empires on a PC in his computer room, and learned a love for video games through him. Adam was always working with computers, which helped build his natural affinity for working with them, leading to him building his own at 14, after taking apart and tinkering with other old computers and tech lying around. Adam has always been very interested in STEM subjects, and is always trying to learn more about the world and the way it works.

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