LeanBiome Ingredients — 9 Lean Bacteria + Greenselect

The Lean Bacteria Blend is the heart of LeanBiome. These probiotic strains are selected because published research associates them with healthier body composition, reduced abdominal fat, better appetite regulation and improved gut microbiome balance. The blend is delivered in DRcaps® delayed-release capsules to protect live cultures from stomach acid.

1. Lactobacillus gasseri

Lactobacillus gasseri is one of the most studied probiotic strains for weight management. Research suggests it may help reduce abdominal visceral fat and support a healthier waist-to-hip ratio.

Clinical evidence: Kadooka et al. (2013) reported in the British Journal of Nutrition that L. gasseri SBT2055 reduced abdominal adiposity in adults in a randomised controlled trial. An earlier study by Kadooka et al. (2010) in the European Journal of Clinical Nutrition found similar benefits in adults with obese tendencies.

2. Lactobacillus rhamnosus

Lactobacillus rhamnosus has been studied for its effects on weight loss, maintenance and appetite-related hormones. It is one of the most widely researched probiotic species for metabolic health.

Clinical evidence: Sánchez et al. (2014) published a study in the British Journal of Nutrition showing that L. rhamnosus CGMCC1.3724 supplementation supported weight loss and maintenance in obese men and women.

3. Lactobacillus fermentum

Lactobacillus fermentum is included for its potential influence on body adiposity and gut microflora composition. Preliminary evidence suggests it may support modest reductions in body fat.

Clinical evidence: Omar et al. (2013) reported in the Journal of Functional Foods that L. fermentum and L. amylovorus as probiotics altered body adiposity and gut microflora in healthy persons.

4–9. Additional Lactobacillus & Bifidobacterium Strains

LeanBiome is marketed as containing nine probiotic strains in total. Independent review sites mention additional Lactobacillus and Bifidobacterium species such as L. paracasei, L. plantarum, B. lactis, B. bifidum, B. longum and B. breve, though these are not consistently confirmed.

These strains are intended to support microbial diversity, digestive comfort and nutrient absorption. Greater microbiome diversity is associated with healthier metabolism and immune function.

Greenselect Phytosome® is a patented, caffeine-free green tea extract formulated with lecithin to improve the absorption of fat-oxidizing catechins. Unlike standard green tea extracts, it is designed to deliver the metabolic benefits of EGCG and other polyphenols without the stimulating effects of caffeine.

Patented Green Tea Phytosome Complex

Green tea catechins — especially epigallocatechin gallate (EGCG) — have been studied for their ability to support fat oxidation, energy expenditure and weight maintenance. The phytosome form binds these catechins to phospholipids, which may improve bioavailability compared to conventional extracts.

Clinical evidence: Di Pierro et al. (2009) reported in Alternative Medicine Review that Greenselect Phytosome® supported weight loss as an adjunct to a low-calorie diet. Gilardini et al. (2016) later published a randomized placebo-controlled study in BMC Complementary Medicine and Therapies showing it helped with weight maintenance after weight loss in obese women.

In addition to probiotics and green tea extract, LeanBiome includes prebiotic inulin and botanical extracts intended to support fat metabolism, microbial balance and digestive comfort.

Inulin

Inulin is a soluble prebiotic fiber found in chicory root and other plants. It serves as food for beneficial gut bacteria, helping them colonize and produce short-chain fatty acids that support gut barrier integrity and metabolic health.

By feeding the probiotic strains in LeanBiome, inulin helps maximize the formula’s effectiveness for digestive regularity and microbiome balance.

Sphaeranthus indicus

Sphaeranthus indicus is an Ayurvedic botanical extract that has been included in some body-composition studies. It is traditionally used to support metabolism and reduce fat storage.

Garcinia mangostana (Mangosteen)

Garcinia mangostana, commonly known as mangosteen, is a tropical fruit extract rich in xanthones and other polyphenols. It has been studied in combination with Sphaeranthus indicus for effects on body weight and fat storage.

LeanBiome Supplement Facts Label

The official LeanBiome label lists every active ingredient, serving size and other ingredients so you know exactly what you're taking.

Serving size: 2 capsules. Servings per container: 30. Key active ingredients include 10 billion CFU of Lactobacillus gasseri, 5 billion CFU of L. rhamnosus, 5 billion CFU of proprietary probiotic blend, 200 mg inulin, 300 mg Greenselect Phytosome® green tea extract, 300 mg Sphaeranthus indicus and 100 mg Garcinia mangostana.

Always review the official product label before starting any new supplement, and consult your healthcare professional if you have questions about how LeanBiome fits your individual health needs.

Why LeanBiome's 9-Strain Formula Matters

Most basic probiotic supplements rely on just one or two strains. LeanBiome goes further by combining nine synergistic lean bacteria strains with a caffeine-free metabolism-supporting green tea extract and prebiotic fiber. This multi-strain approach addresses weight management from several angles: appetite signaling, gut microbiome balance, fat oxidation and digestive comfort.

Every ingredient is selected based on published clinical evidence on individual components. LeanBiome is vegan, non-GMO, gluten-free, dairy-free, soy-free and nut-free, and is manufactured in the United States in an FDA-registered, GMP-certified facility.

Thousands of adults have already trusted LeanBiome to support their weight-management and gut-health goals. See what real customers are saying. Every order is protected by a 180-Day Money-Back Guarantee — making it completely risk-free to experience the difference yourself.

Frequently Asked Questions About LeanBiome Ingredients

What are the main ingredients in LeanBiome?

LeanBiome contains a 9-strain probiotic blend of lean bacteria including Lactobacillus gasseri, L. rhamnosus and L. fermentum, plus Greenselect Phytosome® caffeine-free green tea extract, prebiotic inulin, Sphaeranthus indicus and Garcinia mangostana.

Is LeanBiome made with natural ingredients?

Yes. LeanBiome is vegan, non-GMO, gluten-free, dairy-free, soy-free and nut-free. It is manufactured in the United States in an FDA-registered, GMP-certified facility and contains no artificial fillers or synthetic stimulants.

How many probiotic strains are in LeanBiome?

LeanBiome is marketed as a 9-strain probiotic formula. The most consistently reported strains are Lactobacillus gasseri, L. rhamnosus and L. fermentum; the remaining six strains should be verified against the official product label.

Are LeanBiome ingredients backed by clinical studies?

Yes. The key ingredients are supported by published, peer-reviewed studies on individual ingredients — not on the finished LeanBiome formula itself. Key references include trials on Lactobacillus gasseri, L. rhamnosus and Greenselect Phytosome®.

Does LeanBiome contain any allergens or stimulants?

LeanBiome is stimulant-free and caffeine-free. It is vegan and free from gluten, dairy, soy and nuts. We recommend reviewing the full ingredient label and consulting your healthcare professional if you have specific allergy concerns.

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