The Doctor's Kitchen Podcast #305 How to Choose the Right Probiotic for You and How They Work | Dr. Megan Rossi PhD
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Jul 9, 2025 
In this enlightening conversation, Dr. Megan Rossi, a registered dietitian and nutritionist with a PhD in probiotics and founder of The Gut Health Doctor®, dives deep into the world of probiotics. She demystifies the differences between probiotics and fermented foods, stressing the importance of specific strains. You'll learn how to navigate the supplement aisle confidently, choose the right probiotics for your needs, and the role of diet in enhancing gut health. Dr. Rossi also tackles misconceptions and highlights dietary factors crucial to optimizing your microbiome.
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Probiotics vs Fermented Foods
- Probiotics are live microbes that must be present in adequate amounts to deliver health benefits. - Homemade fermented foods don't qualify as probiotics due to unknown and variable bacterial strains.
Choose Fermented Foods First
- For general gut health, prefer fermented foods and plant diversity over probiotic supplements. - No probiotic supplement has proven to improve microbial diversity in healthy individuals.
Probiotics Have Specific Effects
- Not all probiotics are an insurance policy; they have specific medicinal effects depending on strain and context. - Random probiotic use post-antibiotics may delay microbiome recovery.