Like "It depends on what readings you are talking about. The HbA1c test gives you a reading of your average blood sugar over the past 3 months. You get more immediate results with individual meter readings. Medication alone will generally not do it. It must be combined by a change in eating habits and exercise for your friend. Although she's seen some progress, unless she's seriously looking at how many carbs she's ingesting and cutting back on them, she's not helping herself. 300+ is still way too high. Ask her how many carbs she is eating and when. Every individual with diabetes has to find the right balance...there is no one right answer. I try to limit my carbs to 30 grams at breakfast and no more than 45 grams each for lunch and for dinner. It's not an easy diet but it works for me. I test with my meter from 4 to 6 times a day. A friend and I have started walking 4 times a week doing 2 to 3 miles in 40 to 50 minutes. I've noticed a significant drop in BG levels after the walks. Keep encouraging your friend. She's lucky to have such a supportive ally in her struggle to deal with this disease."