Harvard Health Letter

Are gut bacteria linked to heart health?

Ask the doctor Q. I heard on TV that bacteria in a person’s gut might cause heart disease. How could that possibly be true? A. I can understand your skepticism, and I shared it until recently. We’ve known for nearly two centuries that every human being carries various microbes (bacteria, viruses, and other microorganisms) on us and inside us. However, we’ve long thought they were just freeloaders, taking advantage of…

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