Microbiome: Our gut has trillions of bacteria, fungi, and viruses, all of which make up the gut microbiome; I have written extensively earlier about probiotics. This blog will focus on the most important ways we take care of our gut health. Gut health is the newest research currently being conducted, as it affects our immune system, metabolism, hormones, mental health, and even longevity. They aid in our digestion, help absorb essential micronutrients, balance the brain chemistry, and help us stay lean.
The gut is the second brain—yes, it's true! A great gut gives many benefits, including more energy, better moods, glowing skin, fewer cravings, and a sharper mind. In other words, gut is a superpower. Treat it well, maintain excellent wellness, and optimize health and longevity. In this day and age, this can be fixed pretty easily with a few habits. Let's get into it.
Why Your Gut Microbiome Matters
- 70% of your Immune system
- 95% of serotonin
- Regulates metabolism, insulin, blood sugar, and fat storage
- It impacts brain function, mental clarity, mood, and sleep
- It's linked to nearly every chronic disease, including diabetes, heart disease, autoimmune conditions, and even cancer
The Gut Microbiome is like a rainforest—the more diverse and balanced it is, the healthier it is. When it's disturbed, it leads to leaky gut syndrome or dysbiosis, which causes symptoms like bloating, constipation, brain fog, fatigue, food sensitivities, skin issues, and autoimmune flare-ups.
Starting today, you can feed, grow, and balance your gut flora.
Here is a list of the 5 different habits one can develop to have a happy and healthy gut. Make sure you incorporate these things into your daily life for healthy longevity and optimal living.
Habit #1: Eat Fermented Foods Every Day
Start with fermented foods every day. This is the most powerful way to satisfy your inner gut microbiome. Fermented foods are rich in live, beneficial bacteria that will enhance the function of the gut microbiome. They aid in improving digestion, balancing gut flora, reducing inflammation, enhancing mood and brain function, and strengthening the immune system.
The fermented foods to add daily, Just 1–2 tablespoons of sauerkraut or a glass of kefir, can start shifting your gut flora for the better. Rotate different fermented foods to introduce a variety of microbes. Fermented foods are among the most powerful — and overlooked — ways to nourish your gut.
Sauerkraut – raw, unpasteurized
Kimchi – spicy fermented cabbage
Kefir – fermented milk or water
Yogurt – plain, unsweetened, preferably grass-fed or coconut-based
Miso – fermented soybean paste, great in soups
Tempeh – fermented soy, a protein-rich meat substitute
Kombucha – fizzy fermented tea (low-sugar varieties)
Habit #2: Eat 30+ Different Plant Foods Each Week
Diversity is king; just. Like the example we can take from nature, we look into the same thing inside the gut. Our guts thrive on variety—especially plant-based foods loaded with polyphenols and prebiotics, which feed the gut bacteria.
This is inspired by the American Gut Project, which found that people who eat 30+ different plant foods weekly have more diverse gut microbiomes, lower inflammation, better mood and digestion, and a low risk of chronic disease. It doesn't matter the quantity, but the variety and the number of different varieties must be counted.
Vegetables (e.g., spinach, broccoli, bell peppers, carrots)
Fruits (e.g., apples, berries, bananas)
Whole grains (e.g., oats, quinoa, brown rice)
Nuts & seeds (e.g., chia, almonds, flaxseeds)
Legumes (e.g., lentils, black beans, chickpeas)
Herbs & spices (e.g., garlic, turmeric, parsley)
Habit #3: Prioritize Daily Prebiotics
Prebiotics are special fibers and plant compounds that feed your healthy gut bacteria. Without them, probiotics can't survive or thrive. They act like fertilizer for your microbiome and help Produce short-chain fatty acids (like butyrate) to heal the gut lining, Regulate immune and inflammatory responses, Improve metabolism and insulin sensitivity, and Support weight balance and appetite regulation. Aim to include at least 2–3 prebiotic foods daily in your meals. These ingredients are often already in your kitchen — it's just a matter of intentional use.
Top Prebiotics- Rich foods :
Garlic
Onions
Leeks
Asparagus
Green bananas or plantains
Apples
Artichokes
Chicory root
Oats
Ground Flax seeds
Pro tip: Combine prebiotics and probiotics in the same meal (e.g., kefir and banana) for a synbiotic effect, meaning they work even better together.
Habit #4: Manage Stress Like Your Gut Depends on It (Because It Does)
Your gut and brain are intimately connected via the gut-brain axis—a two-way communication superhighway. That means stress, anxiety, trauma, and even daily overwhelm can directly disrupt your gut, leading to Increased intestinal permeability(leaky gut), reduced microbial diversity, increased inflammation, slower digestion and volatility, and IBS symptoms or flares. Chronic stress changes your gut flora composition and encourages the overgrowth of harmful bacteria.
Daily Gut-Calming Practices:
Deep breathing: Just 5 minutes of diaphragmatic breathing can activate your parasympathetic (rest-digest-heal) state.
Meditation or prayer: 10–20 minutes a day balances stress hormones and improves gut motility.
Movement: Walking, yoga, or dancing helps stimulate digestion and lowers cortisol.
Journaling: Reduces emotional tension and supports mental clarity.
Laughter: Yes, even humor boosts microbial health.
Pro tip: Stress management is not a luxury — it's a biological requirement for a healthy gut.
Habit #5: Optimize Sleep and Circadian Rhythm
The gut has its own circadian clock—and so do your gut bacteria. Poor sleep or irregular rhythms disturb their cycle, which can trigger several issues, including microbiome imbalances, reduced insulin sensitivity, mood issues and brain fog, increased cravings and fat storage, and inflammation.
Sleep Habits to Support Your Gut:
Sleep 7–9 hours consistently
Keep a regular bedtime/waketime
Avoid late-night snacking (gives your gut time to clean house via the migrating motor complex)
Get morning sunlight to anchor your circadian rhythm
Avoid screens 1 hour before bed
Pro tip: If you struggle with sleep, check for gut-related issues like dysbiosis, candida, parasites, or low melatonin — all of which originate in the microbiome.
What to Avoid for a Happy Gut
To truly support your microbiome, you must also remove what harms it.
Ultra-processed foods – especially refined sugars, seed oils, additives
Artificial sweeteners (aspartame, sucralose, saccharin)
Antibiotics – sometimes necessary but overused
NSAIDs – like ibuprofen, which can damage the gut lining
Alcohol – especially in excess
Emulsifiers – common in processed foods and shown to disturb microbiota
Chronic stress and sleep deprivation
As we step into the journey of Optmize health and nutrition and gut health superpower. Let's take care of our guts and feed them some awesome foods that will lead us to optimize health and longevity. Our guts are not just digestive machines but a multifunctional unit enriching the immune system, emotional compass, metabolic regulator, and even mood booster. The key is to consistently consume and protect gut health. Simple daily habits can radically shift our microbiome toward vitality, clarity, resilience, and long-term wellness. Treat your gut as a friend and feed it what it needs for better health and longevity.
Suman Manchireddy MD, FACP
Internal Medicine,
Leesburg, VA.
Email: Care@ReliantMD.com
Disclaimer: This is for purely informational and educational purposes only. Seek medical advice before starting any testing or treatment regimen. The data presented here has been extensively researched and condensed for a broader audience, and it should be viewed for educational purposes only. The blogger or blog has no affiliation with any pharmaceutical company.
Hi there,
I enjoy your commentary. I've spent the last 30 years as a gastroenterologist based in Cleveland, and for the past 16 years I've written a blog sharing insights into the medical profession. I just started a Substack to share my thoughts and advice. My latest post is about chronic abdominal pain. I'm hoping it may prove relevant to you, and that'll considering following along.
https://mkirsch.substack.com/p/whats-the-cause-of-chronic-abdominal
Thanks!
Very helpful. Sounds like a lot of food consumption especially if following OMAD and Keto-friendly menu planning...but will try to incorporate more of the guidelines. Thank you.