LeanBiome is a once-daily dietary supplement developed by Lean For Good, a US-based supplement company. The formula is built around a clinically validated concept: that gut microbiome composition is a significant independent driver of body weight, metabolism, and appetite regulation. The product combines 9 probiotic strains with Greenselect Phytosome® — a patented, caffeine-free green tea extract — and Inulin prebiotic fibre, all delivered in DRcaps® delayed-release capsules that protect the bacteria from stomach acid.
It is manufactured in an FDA-registered, GMP-certified facility in the United States. The formula is vegan, non-GMO, gluten-free, dairy-free, and soy-free. Each bottle contains 60 capsules — a 30-day supply at the recommended dose of 2 capsules daily.
LeanBiome is designed for adults who have struggled with weight management despite dietary changes, suggesting a gut or metabolic component. It is particularly suited for people experiencing persistent bloating, strong sugar cravings, slow metabolism after 40, or those who have recently taken antibiotics and want to restore beneficial bacteria.
It is not appropriate for pregnant or breastfeeding women, those under 18, people on immunosuppressant medications without physician guidance, or anyone expecting pharmaceutical-speed results. Always consult your doctor before starting any supplement, especially if you are managing a medical condition.
The formula contains three primary active components with the strongest clinical evidence: Lactobacillus gasseri (visceral fat reduction — 8.5% in a 12-week RCT), Lactobacillus rhamnosus (body weight management — 4.4 kg loss vs placebo in 24-week RCT), and Greenselect Phytosome® (fat oxidation — 14.2 kg vs 2.7 kg in placebo in 90-day RCT). Six additional supporting strains address gut barrier integrity, digestive comfort, and metabolic function. Read the full breakdown on our LeanBiome ingredients page.
LeanBiome works through four simultaneous biological mechanisms. First, L. gasseri upregulates ANGPTL4 to reduce dietary fat absorption from the intestines. Second, L. rhamnosus and Inulin stimulate GLP-1 and PYY release — satiety hormones that reduce hunger between meals. Third, Greenselect Phytosome® inhibits the COMT enzyme, increasing norepinephrine and activating thermogenesis (fat burning from stored adipose tissue). Fourth, Bifidobacterium strains and L. paracasei seal the intestinal barrier, reducing the LPS-driven systemic inflammation that blocks fat metabolism.
Across 1,247+ verified reviews, the most consistent feedback covers three areas: reduced bloating within 1-3 weeks, reduced sugar cravings at 3-5 weeks, and gradual weight changes emerging at 8-12 weeks. Approximately 8-10% of users report minimal results and use the refund guarantee. Read detailed LeanBiome customer reviews for a balanced overview.
LeanBiome is available exclusively through the official Lean For Good website. The 6-bottle package at $39/bottle (180-day supply) offers the best value and matches the full clinical evaluation timeline. The 3-bottle package at $49/bottle suits those wanting a 90-day trial. All packages include the 180-day money-back guarantee. See the full LeanBiome pricing breakdown.
It is not sold on Amazon, Walmart, or in any retail store. Third-party listings are not covered by the guarantee.
LeanBiome contains natural botanical and probiotic ingredients with no known serious adverse effects at supplemental doses. The most commonly reported side effects are mild digestive adjustment symptoms during the first 1-2 weeks. Anyone on prescription medication should consult their physician before use. Full details on our LeanBiome side effects page.
LeanBiome is one of the most evidence-backed probiotic weight loss supplements available in 2026. Its three primary ingredients have published human RCTs demonstrating statistically significant weight loss — which puts it in a small category of supplements where the evidence genuinely supports the claims made. The 180-day guarantee is appropriate given that probiotic microbiome changes require this timeframe to assess properly.
It is not a magic pill and will not replace a healthy diet and active lifestyle. But for adults experiencing gut-driven weight challenges, persistent bloating, or strong sugar cravings, it represents a well-formulated, low-risk option backed by real consumer protection.
View the complete ingredient list, current pricing, and 180-day guarantee details on the official website.
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