Type 2 diabetes is a condition where your body has trouble keeping blood sugar at a healthy level. Diet plays a massive role - not just in managing it, but potentially in reversing it.
The most important thing you can do is reduce foods that spike blood sugar quickly. These are mainly refined carbohydrates - white bread, white rice, sugary drinks, cookies, and candy. When you eat these, your blood sugar jumps fast, and over time that wears out your body's ability to handle sugar.
The two diets with the strongest evidence for managing type 2 diabetes are the Mediterranean diet and low-carbohydrate diets. Both can lower HbA1c - a measure of your average blood sugar over three months.
The "plate method" is a simple tool from the American Diabetes Association: fill half your plate with non-starchy vegetables, a quarter with lean protein, and a quarter with whole grains or starchy vegetables.
One important warning: if you take insulin or certain diabetes medications like sulfonylureas, eating significantly fewer carbohydrates without adjusting your dose can cause dangerously low blood sugar. Always involve your doctor when changing your diet significantly.