We’ve reached our sixth and final article in our mini-article series on the microbiome, and you might say we’ve saved the best for last. This article focuses on diet and supplementation tips and strategies you can incorporate as part of a healthy lifestyle to promote gut health and longevity.

Any discussion of gut health must examine the impact of diet and processed foods. The refined components in these foods, prevalent in Western diets, lead to bacterial proliferation in the small intestine. This situation results in an unfavorable microbial composition, negatively affecting immune functions. 

To foster a healthier gut, consider limiting processed foods and embracing whole plant-based foods. Here are some key takeaways to help you embrace clean eating for a healthier gut microbiome.

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Diet & Supplementation Tips for a Healthy Gut

Dietary Patterns

• Mediterranean diet: Eating a Mediterranean diet is linked to reduced disease risk, anti-inflammatory bacteria, increased short-chain fatty acids (SCFAs), and improved cognitive function in older adults. We cover the Mediterranean diet in this article.
• The NOVOS diet: The NOVOS Longevity diet takes things a step further, incorporating recent research findings for optimized healthspan and lifespan. Some of its main principles are replacing starches with nutrient-dense alternatives like mushrooms, incorporating teas and coffees, and using scientifically supported longevity ingredients in supplement form, like those in NOVOS Core, NOVOS Vital, and NOVOS Boost. All of the principles of the NOVOS Longevity Diet are covered here.
• Ketogenic diet: This diet emphasizes low-carb, high-fat, and moderate protein. While beneficial for specific conditions, it may negatively impact gut health in disease-free individuals due to reduced fiber and alterations in microbiome composition.
• Intermittent fasting: Evidence suggests benefits of intermittent fasting for gut microbiome diversity, cardiovascular health, and mental well-being. Check out our article What’s The Best Fasting Method For Longevity, Health, And Weight Loss? for a comprehensive look at all the different fasting methods. 

Whole-Food Recommendations

• Processed foods: Limit intake, as refined components, promote bacterial proliferation and negatively impact immune functions.
• Whole plant-based foods: Embrace vegetables, fruits, legumes, mushrooms, tubers, ancient grains, and nuts for a fiber-rich diet promoting a robust gut environment.
• Fermented foods: A 10-week study suggests high-fermented foods enhance microbiome diversity more consistently than high-fiber diets.

Prebiotics for Gut Health

• Prebiotics definition: Non-digestible carbohydrates (NDCs) serve as prebiotics, nourishing gut bacteria and promoting the production of SCFAs.
• Cardiovascular health: Consumption of β-glucans enriched food, like mushrooms, is linked to lower blood pressure.
• Diabetes: Daily intake of β-glucans enriched whole grains is associated with increased microbial diversity and reduced postprandial glucose levels.
• Older individuals: Studies suggest FOS, inulin, and GOS increase Bifidobacteria, reducing inflammatory markers and improving stool frequency in older individuals.

Probiotics and Gut Health

• Probiotics definition: Probiotics are living microorganisms providing health benefits when consumed in adequate quantities. Not all fermented foods qualify; additional processing may eliminate live microbes.
• Fermented foods and gut diversity: Increased fermented food intake enhances gut microbiome diversity and reduces inflammatory markers.
• Probiotic supplements and aging: Studies show specific probiotics mitigate immunosenescence and modulate gut microbiota composition in healthy older adults.
• Next-generation probiotics: Akkermansia muciniphila has been investigated as a potential next-generation probiotic with promising impacts on health.

Synbiotics & Postbiotics for Gut Health

• Synbiotics and postbiotics definition: Synbiotics combine live microorganisms and prebiotic substrates. Postbiotics consist of inanimate microorganisms or their constituents.
• Health benefits: Numerous trials explore synbiotics’ benefits for metabolic disorders, combining live microorganisms with prebiotic substrates. Inanimate postbiotic strains, bacterial metabolites, and end products potentially enhance gut health.
• Gerobiotics for longevity research: Gerobiotics represent probiotic strains and their derived postbiotics with anti-aging potential, showing positive outcomes in immune and cognitive functions.

Practical Tips & Key Takeaways

For optimal gut health, cut down on foods rich in refined components to support a healthier gut environment. Opt for a diet rich in vegetables, fruits, legumes, whole grains, fermented foods, and nuts for a microbiome-friendly approach. Merely increasing fiber may not suffice; explore a variety of fibers from different sources.

Before adopting a ketogenic diet, consider individual health conditions and specific needs. While offering short-term benefits, ensure the ketogenic diet aligns with long-term gut health goals.

For optimal gut health, consider a balanced Mediterranean or NOVOS Longevity Diet that includes six daily servings of fermented foods, combined with a 16/8 intermittent fasting routine. Read the complete article, Bacterial Botox: Microbiome-Based Interventions for Timeless Health, for deeper insights into diet and supplementation concerning the gut microbiome.

We hope you’ve enjoyed this series of mini-articles exploring the gut microbiome. Stay tuned for additional mini-articles coming soon that will explore various health, wellness, and longevity topics.

For the complete list of references and citations, please refer to the original article.