Every single day, millions of Indian families cook food with refined oils, very high heat, and pressure cookers. By the time the food is ready, a large amount of its natural nutrition is already gone. Vitamins like Vitamin C and B-complex are destroyed by heat. Enzymes that help us digest food stop working above 48 degrees Celsius. Important plant nutrients called phytonutrients, which protect us from diseases like cancer and diabetes, also get destroyed when we cook with oil.