Most yogurts sold in supermarkets today have been pasteurized. Pasteurization is a process that kills any type of bacteria, including good bacteria. Pasteurized yogurts that contain probiotics, have got these added after pasteurization. Make sure your yogurts always contain “live and active cultures”, as probiotics are not efficient when dead… Also, keep an eye on their expiration date, it also indicates the lifespan of the bacteria contained. Most yogurts do not indicate the quality of probiotics they contain or the species they contain, making it very difficult for you to assess their effectiveness.
It is true however, that yogurt can be a source of probiotics. But no one said they were a good source of probiotics. Those yogurts that do display the quantity of probiotics, they nearly contain millions of probiotics per container. You would have to eat thousands of yogurts to get the benefits of a single supplement. Also, many probiotics are not bile resistants, and are killed by your gastric acids before they can reach your intestines. A single capsule of NOVA probiotics contains billions of live micro-encapsulated probiotics protected by an enteric-coating. So, although yogurts can be healthy, you should not count on them to enjoy the benefits of adding probiotics into your life!