This is a prospective, randomized, controlled clinical trial with repeated measurements and longitudinal follow-up. Participants aged 14-35 years with early-stage CKD, defined by persistent albuminuria despite preserved glomerular filtration, will be recruited through an institutional renal screening program in Aguascalientes, Mexico. The intervention targets the gut-kidney axis through sustained lifestyle modification and microbiota modulation. The primary mechanistic hypothesis is that reducing intestinal dysbiosis will decrease microbiota-derived uremic toxins and systemic inflammation, potentially attenuating early markers of renal disease progression.
Written informed consent will be obtained from participants aged 18 years or older. For participants under 18 years of age, written assent will be obtained along with informed consent from a parent or legal guardian.