At our lab, we are committed to unraveling the intricate biological mechanisms underpinning childhood under-nutrition. Undernutrition is a multifaceted condition driven by inadequate dietary intake, frequent infections, and disruptions in gut microbiome development. These disruptions compromise nutrient absorption, immune function, and overall growth, leading to long-term health and cognitive impairments. Our research focuses on understanding the role of environmental enteric dysfunction (EED) and micronutrient deficiencies, particularly zinc and iron, in exacerbating this cycle. We explore innovative approaches like microbiota-directed complementary feeding (MDCF) based interventions to restore gut microbiome health, optimize nutrient absorption, and break the cycle of undernutrition. Through cutting-edge studies, we aim to provide novel, evidence-based solutions to improve nutritional outcomes for children globally.