Recommended use: Use in sensible portions when earned.
Although yogurt contains more than 2% lactose, the probiotics in yogurt help you digest it. As a consequence, yogurt is much healthier than unfermented milk.
Avoid sweetened yogurts and try to find full fat yogurt from grass-fed animals. Kefir is an alternative that contains less lactose and is not based on cow milk (see the cheese guide for advise on cow milk sensitivity).