Can probiotics actually curb sugar cravings?

Some gut bacteria may reduce sugar cravings in mice by triggering a chain reaction involving GLP-1 and FGF21 proteins. While probiotic companies claim similar effects in humans, these are based primarily on animal studies. Experts remain skeptical, as there's no evidence yet of comparable results in people. As dietary supplements, probiotics aren't FDA-regulated and don't require human testing to support marketing claims.