With long-term Type 2 diabetes, a HbA1c of 6.7% is really pretty well controlled, and fasting sugar levels of about 150 and post-meal levels of about 190 are just slightly above target. Since you are already taking several diabetes medications, including metformin and vildagliptin, do not increase your metformin dosage from 500 to 1000 on your own. Prioritise food, consistent meal timing, frequent exercise and walking, and weight control. Talk to your diabetologist about any changes to your dosage so they can make a safe decision based on kidney function and overall control.

Although Galvus Met 50/500 aids in blood sugar regulation, readings between 160 and 170 mg/dL indicate that your diabetes may not be completely under control. The right course of treatment depends on your fasting and post-meal blood sugar, HbA1c, diet, weight, kidney function, and exercise habits; do not add or modify medications on your own. Sugar levels can be improved by cutting less on sweets, starches, sugar-filled beverages, and fatty foods, as well as by walking frequently and maintaining a healthy weight. Please speak with your diabetologist; if necessary, they may add another diabetic medication or change the dosage.