The tongue is the mirror of blood sugar, and diabetes is not serious, just look at the tongue The tongue is the mirror of blood sugar, and diabetes is not serious, just look at the tongue The tongue is the mirror of blood sugar, and diabetes is not serious, just look at the tongue The tongue is the mirror of blood sugar, and diabetes is not serious, just look at the tongue The tongue is the mirror of blood sugar, and diabetes is not serious, just look at the tongue The tongue is the mirror of blood sugar, and diabetes is not serious, just look at the tongue The tongue is the mirror of blood sugar, and diabetes is not serious, just look at the tongue