A post-meal reading of 70 mg/dL is quite low?ideally, blood sugar should rise slightly after eating, not drop below your fasting level. This drop suggests your current doses of Glucomet Trio and Tenglyn (teneligliptin) may be too strong, particularly the active ingredients that lower post-meal sugars. Please do not alter your doses on your own. I highly recommend consulting your doctor soon to safely adjust your treatment and prevent hypoglycemia.