Other spellings for yogurt include: yogourt, yoghurt and yoghourt.
There has long been a belief that eating yogurt is associated with longevity, and many studies have been done. In fact, Bulgarians have a longer than average lifespan and it is believed that this is due to the large quantities of cultured milk products that they consume.
Yogurt made with active bacterial cultures produces lactase, the enzyme that allows us to digest lactose. Consequently, yogurt would be tolerated by many people who are lactose intolerant.