Mechanism: Structural support versus signaling modulation
Not checking the expiration date Some pharmacies, particularly smaller ones, may sell medication that is close to expiration
Critical limitations include: Heterogeneity : Different strains, doses, and formulations make comparisons difficult Small effect sizes : Weight changes are typically modest and may not be clinically significant Short duration : Most studies last 12 weeks or less, providing no data on sustained effects Publication bias : Negative studies may be underreported There is no high-quality evidence that probiotic supplements can replicate the substantial weight loss achieved with prescription medications like semaglutide or tirzepatide
While GLP-1RAs are generally thought to have limited BBB penetration, recent studies indicate that many of these agents are cable of CNS penetration of varying degrees [5,50]
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doi: 10.1111/jdi.12269 21 LambadiariVPavlidisGKousathanaFVaroudiMVlastosDMaratouEet al
