Managing diabetes comes down to a few core habits: eating in a way that controls blood sugar, staying physically active, monitoring your glucose levels, and keeping up with regular medical screenings. Whether you were just diagnosed or you’ve been living with diabetes for years, these same pillars apply. The specifics will vary depending on whether you have type 1 or type 2, but the daily work looks similar for most people.
Get Your Baseline Screenings
At diagnosis, your doctor will order a set of tests that become your reference point going forward. The most important is the A1C test, which measures your average blood sugar over the past two to three months. An A1C of 6.5% or higher confirms diabetes, while 5.7% to 6.4% falls in the prediabetes range. You’ll repeat this test at least twice a year if you’re meeting your targets, or every three months if your treatment has changed or your blood sugar isn’t where it needs to be.
You’ll also get a lipid panel to check your cholesterol and triglycerides. For adults under 40 with diabetes, this is recommended at diagnosis and at least every five years after that. A kidney function test (called eGFR) should happen once a year for people with type 2 diabetes. If a previous test showed early signs of kidney disease, that increases to twice a year. You’ll also need a complete foot exam annually and a cholesterol test every year. These aren’t optional extras. Diabetes affects your blood vessels and nerves over time, so catching problems early makes a real difference in outcomes.
Build Your Meals Around the Plate Method
You don’t need to follow a complicated diet. The simplest approach is the plate method, recommended by the CDC. Start with a 9-inch dinner plate, roughly the length of a business envelope. Fill half with non-starchy vegetables like broccoli, green beans, or salad greens. Fill one quarter with a lean protein such as chicken, beans, tofu, or eggs. Fill the remaining quarter with carbohydrate foods like rice, bread, pasta, or fruit.
This ratio works because it naturally limits the portion of your meal that raises blood sugar the most (carbohydrates) while keeping you full with fiber and protein. You don’t have to count every gram of carbs if this feels overwhelming at first. Just getting the visual proportions right at most meals will move the needle on your blood sugar control. Over time, you’ll learn which specific carbohydrate foods spike your glucose more than others, and you can adjust from there.
Aim for 150 Minutes of Activity Per Week
Physical activity makes your cells more responsive to insulin, which directly lowers blood sugar. The target is at least 150 minutes of moderate-intensity activity per week. That breaks down to about 30 minutes a day, five days a week. Moderate intensity means you can talk but not sing during the activity: brisk walking, cycling, swimming, or even yard work all count.
You don’t need to hit 30 minutes all at once. Three 10-minute walks spread throughout the day are just as effective. Resistance training, like bodyweight exercises or lifting weights, also helps by building muscle that absorbs more glucose from your blood. If you’ve been sedentary, start with 10 or 15 minutes and add time gradually. Even small increases in activity improve blood sugar control measurably within weeks.
Monitor Your Blood Sugar
Checking your blood sugar gives you real-time feedback on how food, activity, stress, and medication affect your body. The American Diabetes Association recommends these targets for most adults:
- Before a meal: 80 to 130 mg/dL
- One to two hours after starting a meal: less than 180 mg/dL
How often you check depends on your treatment plan. If you take insulin, you’ll likely test several times a day. If you manage with oral medication or lifestyle changes alone, your doctor may ask you to check less frequently. Either way, keeping a log of your readings helps you and your care team spot patterns, like blood sugar that consistently spikes after breakfast or drops too low in the afternoon.
Understand Your Medication Options
If you have type 2 diabetes, lifestyle changes alone may not be enough to keep your blood sugar in range. The most commonly prescribed first medication is metformin, which works in two ways: it reduces the amount of glucose your liver releases into your blood, and it makes your muscle tissue more sensitive to insulin so your body uses glucose more efficiently.
If metformin alone isn’t sufficient, several other classes of medication work through different mechanisms. Some prevent the breakdown of gut hormones that naturally lower blood sugar, keeping those hormones active in your body longer. Others work at the kidney level, causing excess glucose to leave your body through urine rather than being reabsorbed back into the blood (a common side effect of these is yeast infections, since sugar in the urinary tract feeds yeast). Another older class directly stimulates the pancreas to release more insulin. Injectable medications that mimic gut hormones are also available and have become increasingly common.
Your doctor will choose medications based on your A1C, other health conditions, and how your body responds. Many people with type 2 diabetes take a combination of medications over time, and that’s normal progression, not failure.
Take Care of Your Feet Daily
Diabetes can damage the nerves in your feet, which means you might not feel a cut, blister, or pressure sore until it becomes a serious problem. A daily foot check takes less than a minute and can prevent complications that are much harder to treat later.
Look at the tops and bottoms of your feet and between your toes. You’re checking for callus buildup, cracks in dry skin, blisters, open sores, and any changes in skin color. Pay attention to your toenails for thickening, discoloration, or signs of ingrown nails. Notice whether your feet have changed shape, with bunions, curled toes, or swelling. Watch for numbness, tingling, burning sensations, or a feeling like insects are crawling on your skin, all of which signal nerve involvement.
Circulation matters too. If one foot consistently feels colder than the other, your legs hurt when you walk but feel better at rest, or your foot looks pale, purple, or blue, those are signs of reduced blood flow that need medical attention. Wear shoes that fit properly and check inside them before putting them on to make sure nothing is rubbing or pressing on your skin.
Know the 15-15 Rule for Low Blood Sugar
If you take insulin or certain other medications, your blood sugar can sometimes drop too low. Symptoms include shakiness, sweating, confusion, irritability, and feeling suddenly weak. When this happens, follow the 15-15 rule: eat 15 grams of fast-acting carbohydrates (four glucose tablets, half a cup of juice, or a tablespoon of honey), then wait 15 minutes for the sugar to reach your bloodstream. Recheck your blood sugar after that. If it’s still low, repeat the process. Once it’s back in a safe range, eat a small snack or meal to keep it stable.
Managing Diabetes When You’re Sick
Illness, even a common cold or stomach bug, can send your blood sugar swinging unpredictably. Your body releases stress hormones when fighting infection, and those hormones raise blood glucose. The key rules during sick days: keep taking your insulin and diabetes medication as usual, test your blood sugar every four hours, and drink plenty of water to prevent dehydration.
Try to eat normally if you can. If you can’t keep regular meals down, aim for about 50 grams of carbohydrates every four hours through easier foods like crackers, applesauce, or regular (not diet) soda. Weigh yourself daily and check your temperature morning and evening.
If you have type 1 diabetes or take insulin, test your urine for ketones using an over-the-counter kit. Ketones build up when your body can’t use glucose for energy and starts burning fat instead, and high levels can become dangerous quickly. Go to the emergency room if you’re having trouble breathing, you have ketones in your urine, you can’t keep liquids down for more than four hours, your blood sugar drops below 60 mg/dL, or your temperature stays above 101°F for 24 hours.