Garden of Life
Garden of Life Dr. Formulated Probiotics
50 billion CFU, 16 strains. Refrigerated for maximum potency.
Best for
Adults with digestive issues, those who have recently taken antibiotics, or anyone who wants to support immune function and gut health.
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Our Verdict
Gut health affects everything from digestion to immune function to mood. Garden of Life's Dr. Formulated Probiotics is one of the most rigorously formulated products in the category — 50 billion CFU of clinically studied strains, refrigerated to maintain potency, and certified non-GMO and gluten-free.
What We Like
- 50 billion CFU — clinically studied strains
- Includes prebiotic fiber blend
- Non-GMO and gluten-free certified
- Formulated by Dr. David Perlmutter
- Refrigerated for maximum potency
Watch Out For
- Requires refrigeration
- Higher price than shelf-stable probiotics
CFU Count
CFU (colony-forming units) is the measure of live bacteria in a probiotic. 50 billion CFU is a therapeutic dose — appropriate for people with digestive issues or those recovering from antibiotics. For general maintenance, 10–20 billion CFU is often sufficient. Higher isn't always better — strain selection matters as much as count.
Why Refrigeration Matters
Probiotic bacteria are living organisms that die at room temperature over time. Refrigerated probiotics maintain their potency from manufacture to consumption. Shelf-stable probiotics use hardier strains or protective coatings — they're convenient but generally less potent than refrigerated products.
After Antibiotics
Antibiotics kill both harmful and beneficial bacteria. Taking a high-potency probiotic during and after antibiotic treatment helps restore the gut microbiome. Start probiotics 2 hours after each antibiotic dose (to avoid the antibiotic killing the probiotic bacteria) and continue for 2–4 weeks after finishing the course.
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