Lactobacillus gasseri SBT2055 is a specific beneficial bacteria, a type of probiotic. Probiotics are live microorganisms that provide health benefits when consumed in adequate amounts. This strain is a subject of ongoing research due to its unique characteristics and documented effects.
Identifying L. gasseri SBT2055
Lactobacillus gasseri SBT2055 is a designated strain within the Lactobacillus gasseri species, which belongs to the Lactobacillus genus. The alphanumeric “SBT2055” is a specific strain designation, indicating its isolation and study by Snow Brand Milk Products Co., Ltd. in Japan. This strain was identified in the 1990s during research into Lactobacillus gasseri strains found in the human intestines.
Probiotic strains are identified by their genus, species, and a unique alphanumeric designation, as different strains can have distinct effects. L. gasseri SBT2055 is naturally found in the human gastrointestinal tract. Its ability to survive stomach acid and persist in the human intestines contributes to its potential effectiveness.
Specific Health Contributions
L. gasseri SBT2055 has demonstrated notable health contributions, particularly concerning metabolic health and body composition. Studies have shown its ability to help reduce abdominal fat, including both visceral and subcutaneous fat, in adults with tendencies toward obesity. For instance, a 2010 study observed that adults consuming a fermented milk product containing L. gasseri SBT2055 for 12 weeks experienced significant reductions in abdominal fat area, body weight, and waist circumference. Specifically, participants saw a 4.6% reduction in abdominal fat and a 3.3% reduction in subcutaneous fat.
Beyond fat reduction, L. gasseri SBT2055 has been associated with improvements in body weight and Body Mass Index (BMI). Continuous consumption is important to maintain these effects, as benefits can diminish after discontinuing intake. This suggests a role for the strain in weight management.
In addition to metabolic benefits, L. gasseri SBT2055 contributes to immune function. It has been shown to activate both innate and adaptive immune responses in humans. For example, a study involving healthy adults showed that consuming drinkable yogurt with L. gasseri SBT2055 increased influenza vaccine-specific antibody responses and enhanced natural killer cell activity. This indicates its potential to support the body’s defenses.
How L. gasseri SBT2055 Interacts
The beneficial effects of L. gasseri SBT2055 stem from its interactions within the gut and its influence on physiological processes. One mechanism involves its impact on fat metabolism, particularly by suppressing the absorption of dietary fats. Research suggests that L. gasseri SBT2055 can affect the breakdown of fat globules, leading to reduced efficiency of pancreatic lipase, an enzyme involved in fat absorption. This can result in increased fecal fat excretion, meaning less dietary fat is absorbed by the body.
The strain also influences energy expenditure and glucose tolerance. Studies in rats have indicated that L. gasseri SBT2055 can stimulate carbohydrate oxidation, leading to an increase in overall energy expenditure. It has also been shown to improve glucose tolerance and reduce inflammation markers associated with obesity and metabolic disorders. These actions contribute to preventing body weight gain and improving metabolic profiles.
L. gasseri SBT2055 also modulates the gut microbiome and immune responses. It can enhance the abundance of beneficial microbes and strengthen the gut barrier integrity by upregulating tight junction proteins. This helps prevent inflammatory substances from entering the bloodstream, reducing inflammation in adipose tissue associated with obesity. The strain also stimulates immunoglobulin A (IgA) production in the small intestine, a key component of mucosal immunity, supporting immune health.
Using L. gasseri SBT2055 Safely
L. gasseri SBT2055 is available in various forms, primarily as dietary supplements and in specific fermented food products like yogurt. When considering supplements, look for products that clearly state the specific strain (SBT2055) and provide information on Colony Forming Units (CFUs). Clinical studies often use dosages around 10 billion CFUs per day to achieve effects like abdominal fat reduction.
While L. gasseri SBT2055 is generally considered safe, some individuals might experience mild gastrointestinal side effects, such as gas or bloating, as their digestive system adjusts. Certain groups, including immunocompromised individuals, pregnant women, and breastfeeding mothers, should consult a healthcare professional before starting any probiotic regimen due to limited specific research.
Always adhere to the manufacturer’s recommended dosage and storage instructions to ensure the viability and effectiveness of the probiotic. If you have underlying medical conditions or take other medications, discuss probiotic use with a healthcare provider to determine its appropriateness.

