A viral Instagram post by Luke Coutinho promoted idli and dosa as 'fermented powerhouses' beneficial for gut health, attributing strong immunity to traditional fermented foods. Functional Nutritionist Mugdha Pradhan fact-checked these claims, stating that nutritional advice is contextual and depends on individual metabolic health. Pradhan emphasized that what benefits one person might harm another, and nutrition is about balancing macronutrients, not absolute food benefits.