Impact of SCFA Supplementation on Gut Microbiome Composition of Kidney Transplant Recipients

Participants randomized to this group will receive 1000 mg of sodium butyrate daily for 12 weeks. The intervention aims to evaluate the effect of high-dose SCFA supplementation on the gut microbiome and systemic/urinary metabolome in kidney transplant recipients.

Participants in this group will receive placebo capsules (sacharosis) identical in appearance to the active SCFA capsules, administered twice daily for 12 weeks. This arm serves as a control to evaluate the specific effects of SCFA supplementation.