Yoghurt is an excellent source of calcium, protein, magnesium, vitamin B12, and riboflavin. It is also a good source of probiotics (health-promoting bacteria) and iodine, particularly for vulnerable people in countries without an iodine-fortified food supply, such as the United Kingdom. Past studies show that yoghurt reduces the risk of type 2 diabetes, but the exact way it does this is unknown. Now, new research reveals that yoghurt alters gut…