You can't. Two days after the shelf life of yogurt expires at 2 1 day, a large number of pathogenic microorganisms will breed. These pathogenic microorganisms will not only destroy the nutrients in yogurt, but also produce toxins. If you continue to drink expired yogurt, it will lead to gastrointestinal infection, abdominal pain, diarrhea, nausea and so on. So you can't drink yogurt after the shelf life.