Gut Health Isn't Just About Digestion: Why Your Microbiome Affects Everything (Including Your Hormones)
March is National Nutrition Month!

Your gut is often called your "second brain"—and for good reason. The trillions of bacteria living in your microbiome don't just digest food. They produce neurotransmitters, regulate hormones, support immunity, and influence your mood, energy, and metabolism.
This March, during National Nutrition Month, let's talk about why feeding your gut well is one of the best investments you can make in your health.
The Gut-Hormone Connection: It's More Critical Than You Think
Your microbiome doesn't just support digestion—it's essential for hormone production and metabolism. Your gut bacteria produce short-chain fatty acids (butyrate, propionate, acetate) that support overall metabolic health and hormone synthesis. Without a healthy microbiome, your body struggles to produce adequate hormones in the first place. Your gut also affects hormone metabolism (especially estrogen)!
Here's where it gets really important: estrogen metabolism happens in three phases, and Phase 3 happens in your gut.
- Phase 1 & 2 happen in your liver (conjugation)
- Phase 3 happens in your gut—your microbiome reactivates or eliminates estrogen
A healthy microbiota helps your body recycle and eliminate excess estrogen—a process called the "estrobolome." When your microbiome is out of balance (dysbiosis), estrogen can recirculate, leading to hormone imbalances, heavy periods, mood swings, PMS, and other symptoms. The same applies to other hormones: cortisol, thyroid function, insulin sensitivity—your gut bacteria influence them all. This affects men in all aspects including estrogen too!
If You're Thinking About Starting Hormones, Start Here First
Before you begin hormone replacement therapy (HRT), bioidentical hormones, or any hormone optimization, consider your gut health first.
Here's why:
- If your microbiome is dysbiotic, you won't metabolize hormones efficiently.
- You could be taking the right dose, but your body can't process it properly.
- This leads to suboptimal results, side effects, or wasted money.
- Get your microbiome tested.
- Optimize your gut.
- Then start hormones.
- You'll see better results, faster, with fewer issues.
What Kills Your Microbiome (And What Feeds It)
The microbiome killers:
- Ultra-processed foods (seed oils, refined carbs, artificial sweeteners)
- Chronic stress (cortisol disrupts bacterial balance)
- Antibiotics (sometimes necessary, but they nuke your good bacteria too)
- Lack of sleep
- Chronic inflammation
What feeds a healthy microbiome:
- Fiber (from vegetables, fruits, legumes, whole grains)
- Fermented foods (sauerkraut, kimchi, kombucha, kefir, miso)
- Polyphenol-rich foods (berries, dark chocolate, green tea, olive oil)
- Bone broth (collagen supports gut lining)
- Omega-3s (fatty fish, flaxseeds, walnuts)
- Prebiotic foods (garlic, onions, asparagus, bananas)
- Probiotic supplements (when needed)
Advanced Testing: Know Your Microbiome
Guessing isn't good enough. I offer microbiome stool testing through Vibrant Wellness—one of the most comprehensive microbiome analyses available. Here's why I'm passionate about this: I recently did my own stool test in January of this year, and I had no idea what the data would reveal. The results were invaluable. I discovered imbalances I didn't know I had, learned exactly which bacteria I was missing, and got personalized recommendations based on my microbiome—not generic advice. Since then, I've adjusted my nutrition and supplementation accordingly, and I genuinely feel healthier. I'm living proof that this testing changes lives.
What Vibrant Wellness testing shows:
- Your complete bacterial composition (which beneficial bacteria you have and which you're missing)
- Inflammation markers in your gut
- Dysbiosis severity and type
- Parasites, pathogenic bacteria, or fungal overgrowth
- Specific, actionable recommendations for YOUR microbiome
- This isn't a generic "eat more fiber" plan. It's personalized based on your actual bacterial composition.
Order your Vibrant Wellness Gut Zoomer test directly through me at Wellness & Hormones Avenue (WHA)! We're also offering genetic testing to understand how your body processes nutrients—so you know exactly what supplements and foods your body needs most. This data will be able to help guide you throughout your lifetime.
Practical Nutrition Tips for Gut Health
- Eat the rainbow – Different colored foods feed different bacteria. Aim for 30+ plant foods per week.
- Prioritize fiber – Aim for 25–35g daily, but increase gradually to avoid bloating.
- Add fermented foods – Even small amounts (1–2 tbsp daily) make a difference.
- Reduce seed oils – Switch to olive oil, avocado oil, or butter.
- Manage stress – Stress hormones damage your gut lining. Prioritize sleep, movement, and relaxation.
- Limit antibiotics – Only use when truly necessary. Ask your provider about alternatives.
- Stay hydrated – Water supports digestion and nutrient absorption.
- Chew your food – Digestion starts in your mouth. Slow down.
Colorectal Cancer Awareness: When to Screen
While we're talking about gut health, let's mention colorectal cancer awareness as that is also a topic of the month. Colorectal cancer is preventable and highly treatable when caught early.
USPSTF (U.S. Preventive Services Task Force) Guidelines:
- Ages 45–49: Screening is recommended (lowered from age 50 in recent years). You can screen earlier depending on your family history and any symptoms you may be experiencing.
- Ages 50–75: Screening is strongly recommended
- Ages 76+: Individualized decision based on health status and prior screening
Screening options:
- Colonoscopy (gold standard, every 10 years if normal)
- Cologuard (at-home DNA stool test, every 3 years)
- Flexible sigmoidoscopy (every 5–10 years)
- CT colonography (every 5 years)
Risk factors include poor diet, sedentary lifestyle, smoking, heavy alcohol use, obesity, and inflammatory bowel disease. The same habits that support a healthy microbiome—whole foods, fiber, movement, stress management—also reduce colorectal cancer risk. Your gut health is your overall health.
The Bottom Line
Your microbiome isn't just about digestion. It's about hormone production, hormone metabolism, immunity, mental health, energy, and longevity. If you're considering hormone optimization, start with your gut. Get tested. Optimize. Then optimize your hormones.
This March, invest in your gut. Eat real food, reduce stress, and get your microbiome tested with us so you know exactly what your body needs!
At Wellness & Hormones Avenue, we're excited to offer advanced microbiome testing, genetic testing, and personalized nutrition guidance. Your gut—and your hormones—will thank you.
Happy March Madness,
Doc Nico, Your Wellness & Hormones Specialist



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