The timing of buttermilk consumption matters because it affects how the gut processes and utilizes the probiotics present in the drink. During the Indian heatwave, individuals are more susceptible to dehydration and digestive problems. Consuming buttermilk after lunch can help regulate body temperature and aid digestion when the body is most active. This is particularly important for vulnerable populations, such as the elderly and young children, who may struggle to maintain adequate hydration and digestive function during extreme heat. Optimizing dietary habits, like timing buttermilk intake, can significantly improve overall health and comfort during the heatwave.