A leading cardiologist is reminding people that supporting gut health requires more than just eating any fiber. Dr Pradip Jamnadas, Orlando-based interventional cardiologist and founder of Cardiovascular Interventions, shared an educational post on Instagram explaining how different types of fiber nourish different beneficial bacteria in the gut.
In his post, Dr Jamnadas highlights that the microbiome, the community of trillions of microorganisms in the digestive tract, depends on what individuals feed it. According to his caption, “Different types of fiber support different good bacteria, helping your microbiome stay balanced and strong.” He cautioned that processed foods tend to support sugar-loving bacteria that disrupt the gut ecosystem, whereas fiber-rich, colourful whole foods help beneficial bacteria thrive.
Food Choices Influence Gut Integrity He shared what he referred to as “microbiome food.” In the video posted on Instagram, he explains that nutritious vegetables provide both fiber and polyphenols, which act as antioxidants. These play a vital role in maintaining gut lining integrity and nurturing the bacteria that produce essential compounds known as postbiotics. He noted that “up to 50 percent of the micronutrients in your body are actually coming from the products of metabolism of the bacteria in your gut.”
Invite the “Good Guys” to the Gut Dr Jamnadas emphasised that the goal is to encourage healthy bacteria to multiply, describing them as the microbes that one would want to “invite to your party.” He also stressed that real, unprocessed foods help develop a robust and diverse microbiome, while highly processed foods do not support the same beneficial microbial growth.
Dr Jamnadas has been practicing for more than 31 years and has been named “Orlando Top Doctor” by Orlando Magazine for over a decade. He also serves as an Assistant Clinical Professor at Florida State University and the University of Central Florida College of Medicine, mentoring future clinicians in the field of cardiovascular care.
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Through his latest message, he urges people to focus less on calorie counting and more on nourishing the microscopic community inside them. The takeaway is simple: the more fiber variety individuals add to their plate, the stronger their gut and overall health can become.
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