One study included 210 adults with obesity who were given either milk enriched with Lactobacillus gasseri or a placebo milk (plain milk). After 12 weeks, the Lactobacillus group experienced an 8.5% reduction in abdominal fat compared to the placebo group. Another clinical trial evaluating Lactobacillus gasseri versus placebo found that the Lactobacillus gasseri reduced visceral fat mass in adults with obesity. The same conclusions have not been reached in other studies:
One study of 62 adults with obesity given a 12-week course of Lactobacillus gasseri showed no significant weight changes compared with adults given a placebo.
A systematic review of trials comparing a Lactobacillus species to placebo for weight loss found conflicting results. Of the 14 trials studied, nine showed weight loss, two showed weight gain, and three showed no effect. The authors believe the various results may have been due to different probiotic species used during the study.
Dosage: Lactobacillus gasseri supplements are available in many grocery stores, drugstores, and health food stores, either as a single supplement or as part of a combination probiotic.
The strength of Lactobacillus products is indicated by the number of living organisms per capsule or tablet, also known as colony forming units (CFU). Generally speaking, many probiotic products contain 1 to 10 billion colony forming units per dose. There is no established recommended dose for Lactobacillus gasseri.
Overtake: There is not a lot of data on what could happen if taking too much of a probiotic. Always follow the instructions on the product label for dosing. Never take more than recommended.
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