When people with type 2 diabetes and obesity follow a low-carb diet for 12 weeks, their blood sugar levels drop significantly and they may need less medication.

If you're overweight and have type 2 diabetes, eating fewer carbs and more protein for 6 weeks can slightly lower your blood sugar better than the usual diabetes diet—even if you lose the same amount of weight—because your blood sugar stays more stable throughout the day.

If you have type 2 diabetes and eat very few carbs (like less than a slice of bread per meal) while getting ongoing support from a doctor or coach, you might lower your blood sugar so much that you can stop taking diabetes meds—and for many people, that improvement lasts a year or even two.

When obese adults take medicines designed to help them lose weight, their blood sugar levels go down a little — even if they don’t change how they eat or exercise.

When people with type 2 diabetes and obesity follow a low-carb diet for 12 weeks, it changes certain blood chemicals that are linked to liver problems, which helps improve how their liver works.

People with type 2 diabetes who used the online low-carb program saw their blood sugar drop by about 0.6% and lost around 6 pounds on average.