Answer: Probiotic products contain useful live bacteria which improve digestion and keep the intestine healthy.
Probiotics contain bacteria such as Lactobacillus and Bifidobacterium, which are the same as the useful microbes already present in the human intestine. They help in the digestion of food, produce vitamins, prevent the growth of harmful microbes and are useful after a course of antibiotics. They also increase immunity and help in conditions such as diarrhoea and indigestion. Hence more and more people are using curd, buttermilk and probiotic drinks.