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Probiotics: While not direct zonulin inhibitors, certain strains of probiotic bacteria, such as Lactobacillus and Bifidobacterium species, have been shown to have a positive impact on intestinal barrier function and leaky gut

TL;DR The strongest weight loss prescription pill in 2026 is tirzepatide (Zepbound) , a dual GLP-1/GIP receptor agonist that delivered up to 22.5% body weight loss in the SURMOUNT-1 clinical trial

Preliminary trial results further highlight substantial improvements in cardiovascular markers among patients treated with Retatrutide, including reduced systemic inflammation markers (like CRP), lowered lipid profiles, and enhanced cardiac efficiency

Important safety information: Tirzepatide has a boxed warning for risk of thyroid C-cell tumors