Mr. Li from Nanjing has had diabetes for 12 years. He is usually very careful with his diet and lifestyle, and his blood sugar has been well-controlled. However, recently, Mr. Li discovered that since he started drinking a high-calcium, sugar-free yogurt produced by a dairy company, his blood sugar has started to rise and become unstable.
According to some information, sugar-free yogurt is a healthy yogurt with no added sucrose. Experts believe that the "sugar-free" yogurt claimed by manufacturers is different from the true "sugar-free" that diabetics need. Because yogurt is made from milk through microbial fermentation, it naturally contains a considerable amount of lactose. During the fermentation process, some of the lactose is utilized by microorganisms and converted into metabolic products like lactic acid, but some lactose remains. In a strict sense, this yogurt is not truly sugar-free, so it can affect the blood sugar levels of diabetic patients.