Blog - Gut health – Yella Wellness

Your Gut Is Talking to Your Immune System—Here’s What It’s Saying

By Dr. Talia Greene | Probiotics, Gut & Vaginal Health

You’ve probably heard that 70% of your immune system lives in your gut—but what does that *actually* mean? Is it just a trendy stat, or is your microbiome really calling the shots when it comes to getting sick (or staying well)?

Let’s break it down: your gut is more than a digestive tube—it’s an information superhighway. And probiotics? They’re the friendly couriers delivering messages that keep your immune system balanced, smart, and ready for whatever the world throws at you.

1. Your Gut Is a Communication Hub

Inside your gut lining are immune cells constantly talking to your microbes. The good bacteria (like Lactobacillus and Bifidobacterium) help train these immune cells to:

Differentiate between *friend* and *foe*

Respond to real threats—without overreacting

Keep inflammation under control

Think of probiotics like coaches keeping your immune squad in shape.

2. They Help Prevent Overreaction (Yes, Like Autoimmune Stuff)

When your gut is out of balance, your immune system can go haywire—overreacting to harmless things like pollen, food, or even your own tissues.

Probiotics help restore harmony, lowering your risk of:

Allergic reactions

Chronic inflammation

Autoimmune flare-ups

3. Your Gut Microbiome Changes With Stress

Feeling overwhelmed? Your immune system knows. Stress shifts your gut bacteria, weakening defenses. That’s why probiotics are extra helpful during:

Busy or high-stress seasons (like finals or end-of-quarter madness)

Travel, disrupted sleep, or changes in diet

Illness recovery or post-antibiotic use

4. Not All Probiotics Do the Same Thing

It’s not just about popping any probiotic. Different strains have different specialties:

Lactobacillus rhamnosus: Calms inflammation and supports respiratory health

Bifidobacterium lactis: Boosts antibody production and gut barrier integrity

Lactobacillus plantarum: Excellent for gut resilience under stress

Look for multi-strain formulas with research-backed strains—and remember: consistency is key.

Final Thought from Dr. Greene

Your gut and immune system are in constant dialogue. And probiotics? They help keep the conversation intelligent, responsive, and calm. If you’re looking to boost immunity, start where it all begins—your gut.

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About Yella Wellness

At Yella Wellness, we believe your body deserves to be heard, supported, and celebrated—every single day. Our science-backed supplements are designed specifically for women’s unique rhythms, helping you feel balanced, vibrant, and deeply connected to yourself. Because feeling good shouldn’t be complicated—it should feel like coming home.