Dr. Eric Berg
Dr. Eric Berg

@dr_ericberg

15 tweets 9 reads Feb 07, 2025
Are depression and anxiety caused by a missing microbe in your gut?
A new study reveals the gut microbiome’s powerful influence on mood. A groundbreaking probiotic solution could change everything.
Check this out: 🧵👇
The human body produces 17 digestive enzymes. But your microbiome? Over 60.
These microbes help break down fiber into key compounds like acetic acid and butyric acid, which nourish your colon cells and even mimic ketones.
The influence of the gut microbiome extends beyond digestion.
It plays a direct role in producing neurotransmitters such as:
• Serotonin
• Dopamine
• GABA
Did you know that 90% of your body's serotonin is made in your gut—not your brain?
This is why gut health is deeply connected to mood disorders like anxiety and depression.
The gut and brain communicate through the vagus nerve—a two-way highway.
When your gut health suffers, it can trigger mental health issues.
Chronic stress and anxiety don’t just affect your mind—they also disrupt your gut bacteria, creating a vicious cycle.
What’s wrecking your gut microbiome?
• Antibiotics (they kill the good bacteria too)
• Glyphosate (a sneaky herbicide hiding in your food)
• Junk foods
• Meds
• Stress
• Alcohol
• Smoking
All these factors mess with your gut balance.
Junk food, alcohol, stress—they're all wreaking havoc on your gut.
Weakened good bacteria let bad microbes take over, leading to:
• Nutrient deficiencies
• Inflammation & leaky gut
• SIBO (Small intestinal bacterial overgrowth)
• Allergies & food sensitivities
But a game-changing discovery by Dr. William Davis offers a solution:
A super-concentrated probiotic made from a special strain of Lactobacillus reuteri.
Unlike regular yogurt, Dr. Davis ferments this probiotic at 99°F for 36 hrs, creating an ultra-potent formula that:
• Boosts oxytocin (the bonding hormone)
• Lowers cortisol & stress
• Enhances sleep, mood & skin health
• Increases muscle mass & reverses aging
Here's the result:
One shocking study showed old mice given L. reuteri became young again—regaining muscle, thick fur, and youthful energy.
And human trials confirm similar results.
Those taking this probiotic report:
• Thicker hair & younger skin
• Better sleep & deep relaxation
• Higher testosterone & libido
• Reduced anxiety & depression
How to make L. reuteri yogurt at home:
• Crush 1 L. reuteri probiotic tablet
• Mix with inulin + 2 tbsp organic half-and-half
• Add 1 quart half-and-half & mix well
• Ferment at 99°F for 36 hrs in a yogurt maker
Watch the full guide here: youtu.be
A bit about me:
I’m Dr. Eric Berg, creator of Healthy Keto® and intermittent fasting protocols.
I educate millions on nutrition and wellness, empowering over 100M people to make healthier choices.
Follow me for evidence-based insights to improve your health and vitality.
That's a wrap!
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And follow me @dr_ericberg for more evidence-based insights to improve your health and longevity.

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