Managing type 2 diabetes comes down to keeping your blood sugar in a healthy range while protecting your body from long-term damage. The general target for most adults is an HbA1c below 7%, with daily blood sugar readings between 80 and 130 mg/dL before meals and under 180 mg/dL one to two hours after eating. Hitting those numbers consistently requires a combination of food choices, movement, monitoring, and often medication.
Set Your Blood Sugar Targets
HbA1c is a blood test that reflects your average blood sugar over the past two to three months. For most nonpregnant adults, keeping it below 7% significantly reduces the risk of complications affecting the eyes, kidneys, and nerves. Your doctor may set a slightly looser or tighter goal depending on your age, how long you’ve had diabetes, and whether you experience low blood sugar episodes.
If you use a continuous glucose monitor (CGM), you’ll also see a metric called “time in range,” which measures how many hours per day your blood sugar stays within your target zone. The goal for most people is at least 70% of readings in range, roughly 17 out of 24 hours. The more time you spend in range, the lower your risk of diabetes-related complications.
Build Your Plate Around Whole Foods
Diet is the single most powerful lever you have. A Mediterranean-style eating pattern, built around vegetables, legumes, whole grains, fish, nuts, and olive oil, consistently improves blood sugar control and lowers LDL cholesterol. In a Stanford trial comparing it head-to-head with a ketogenic diet, both approaches reduced HbA1c, but the Mediterranean diet also improved cholesterol while the keto diet raised it. Participants also found the Mediterranean pattern easier to stick with over time, which matters more than any short-term result.
The practical principles are straightforward. Fill half your plate with non-starchy vegetables. Add a palm-sized portion of protein (fish, poultry, beans, tofu). Include a fist-sized portion of complex carbohydrates like brown rice, quinoa, or sweet potato. Use olive oil instead of butter. This combination slows digestion, blunts blood sugar spikes after meals, and keeps you full longer. You don’t need to eliminate carbohydrates entirely. You need to choose ones that digest slowly and pair them with protein and fat.
Move Your Body Most Days
Exercise makes your muscles more responsive to insulin, which directly lowers blood sugar. The American College of Sports Medicine recommends moderately high-volume workouts four to five days per week for people with type 2 diabetes who want to lose weight. That can be brisk walking, cycling, swimming, or any activity that raises your heart rate enough to make conversation slightly difficult.
Resistance training is equally important. Lifting weights, using resistance bands, or doing bodyweight exercises like squats and push-ups builds muscle mass, and muscle is the largest consumer of glucose in your body. High-intensity resistance exercise provides greater benefits than lighter workouts. Aim for at least two sessions per week on nonconsecutive days, targeting all major muscle groups. Even a 15-minute walk after meals can noticeably flatten your post-meal blood sugar spike.
Understand Your Medication Options
Most people with type 2 diabetes start on metformin, which reduces the amount of glucose your liver releases and helps your cells respond better to insulin. It’s effective, inexpensive, and well-tolerated once your body adjusts to it (initial digestive side effects usually settle within a few weeks).
If metformin alone isn’t enough, your doctor may add a second medication. Two newer classes have changed the landscape because they do more than lower blood sugar. SGLT2 inhibitors work by causing your kidneys to excrete excess glucose through urine. In large pooled analyses, they reduced hospitalization for heart failure by 23% and slowed kidney disease progression by 45% in people with type 2 diabetes. If you have existing heart or kidney concerns, these medications offer meaningful protection beyond glucose control.
GLP-1 receptor agonists (the class that includes semaglutide and liraglutide) work by reducing appetite and hunger, slowing the release of food from your stomach, and increasing feelings of fullness after eating. They act on appetite-regulating centers in the brain to lower your preference for energy-dense foods and reduce cravings. In clinical trials, about half of participants with diabetes lost at least 5% of their body weight within a year, and roughly one in four lost 10% or more. That weight loss, combined with improved blood sugar, makes these medications particularly useful for people who need to address both issues simultaneously.
Weight Loss and the Possibility of Remission
Type 2 diabetes can go into remission, defined as maintaining an HbA1c below 6.5% without any glucose-lowering medication for at least three months. The key factor is weight loss, and the threshold is substantial. The landmark DiRECT trial demonstrated that losing 10 to 15% of your body weight can lead to remission in the majority of people with a relatively short disease duration (generally under six years). Participants who lost more than 15 kg had remission rates of 86% at one year and 82% at two years. Even losing more than 10 kg resulted in remission rates above 75%.
The likelihood of remission increases with every additional 5% of weight lost, up to about 20% total body weight, where the benefit plateaus. Starting early matters. The closer you are to your diagnosis, the better your chances, because the insulin-producing cells in your pancreas haven’t been damaged as extensively. This doesn’t mean remission is guaranteed, but it reframes the goal: aggressive early weight loss isn’t just about feeling better, it’s potentially about reversing the disease.
Sleep Affects Your Blood Sugar More Than You Think
Sleep deprivation directly worsens insulin resistance. A Columbia University study found that cutting sleep by just 90 minutes per night (going from about seven and a half hours to six) for six weeks increased fasting insulin levels by over 12% and insulin resistance by nearly 15%. Among postmenopausal women, insulin resistance rose by more than 20%. These are meaningful shifts that can undermine everything else you’re doing right.
Prioritize seven to eight hours of sleep per night. Keep a consistent bedtime, limit screens in the hour before bed, and avoid eating large meals late in the evening. If you snore heavily or wake up feeling unrefreshed despite adequate time in bed, ask about screening for sleep apnea, which is common in people with type 2 diabetes and worsens blood sugar control.
Monitoring and Screening
Check your HbA1c every three to six months to track your overall trend. If you take insulin or a medication that can cause low blood sugar, regular fingerstick checks or a CGM helps you catch problems in real time and learn how specific foods and activities affect your glucose.
Diabetes damages blood vessels over time, and that damage tends to show up first in the smallest vessels: those in your eyes, kidneys, and feet. Get a dilated eye exam at least once a year to screen for diabetic retinopathy, which can be treated effectively if caught early but can lead to vision loss if missed. A comprehensive foot exam should happen at least annually as well, though more frequently if you’ve had any foot problems. Ask your doctor for a quick foot check at every regular visit. Loss of sensation in your feet means small injuries can go unnoticed and become serious infections.
Handling Low Blood Sugar
If you take insulin or certain oral medications, you need to know how to recognize and treat hypoglycemia (blood sugar below 70 mg/dL). Symptoms include shakiness, sweating, confusion, irritability, and a rapid heartbeat. The treatment follows the “Rule of 15”: consume 15 grams of fast-acting carbohydrate (four glucose tablets, half a cup of juice, or a tablespoon of honey), wait 15 minutes, then recheck. If you’re still below 70, repeat the treatment. Once your blood sugar returns to normal, eat a small snack with protein if your next meal is more than an hour away.
If your blood sugar drops below 50 mg/dL, double the initial treatment to 30 grams of carbohydrate. Keep glucose tablets or juice accessible at all times, including your bedside, car, and workplace. Repeated lows are a signal to adjust your medication, not something to push through.