Managing your blood sugar is the key to managing your weight. Frequent fluctuations in blood glucose lead to insulin spikes, which trigger fat accumulation in the body. To combat this, you must moderate your intake of simple carbohydrates and stay physically active. We are currently living in a "crisis era" of diabetes and prediabetes, largely due to modern eating habits. Let’s revisit the foundational steps of blood sugar control.
Prediabetes: The Critical Window for Intervention
Prediabetes is the highest-risk stage for developing Type 2 diabetes. Without strict food and exercise management, you risk transitioning into a lifelong chronic condition. According to the Korean Diabetes Association, a normal fasting blood sugar level is less than 100 mg/dL. Additionally, the Hemoglobin A1c (HbA1c)—which measures your average blood sugar over the past 2–3 months—should be below 5.7%. A range of 5.7% to 6.4% indicates prediabetes, while 6.5% or higher is the threshold for a diabetes diagnosis.
The Science of Meal Sequencing: Fiber → Protein → Carbs
When you are in a fasting state before a meal, your body is primed for absorption. Many people rush to eat noodles, rice, or bread because of intense hunger. However, because the stomach is empty, these carbohydrates are rapidly digested, causing a sharp blood sugar spike.
If you shift your eating order to Vegetables → Protein → Carbohydrates, the dietary fiber from the vegetables and the satiety from the protein slow down the digestion of the carbohydrates consumed at the end of the meal. This sequence significantly suppresses glucose spikes and aids in weight loss.
Understanding High Fasting Blood Sugar
When carbohydrates are digested, they break down into glucose (sugar). Under the influence of insulin, our body stores excess glucose in the liver and muscles as glycogen. During the night, if blood sugar levels drop, the liver breaks down this glycogen or produces new glucose to maintain stability.
If your fasting blood sugar is high in the morning, it often means the liver produced too much sugar overnight. This indicates a potential lack of insulin secretion or a decrease in insulin sensitivity, meaning the liver's ability to regulate glucose metabolism has weakened.
Why Glucose Control is the Secret to Weight Loss
The most effective way to prevent the onset of diabetes during the prediabetic stage is to lose 5–10% of your body weight. Experts recommend at least 150 minutes of moderate-intensity aerobic exercise per week.
There is no shortcut to prevention: eat three meals a day, but avoid carbohydrate overload. Focus on high-fiber foods (whole grains, vegetables, and seaweed) and aim for 1.0–1.2g of protein per kilogram of body weight. Eating two eggs and tofu in the morning, followed by fish or lean meat for lunch and dinner, can help you reach these goals. Even for healthy individuals, paying attention to meal sequencing is a highly effective strategy for long-term weight management.
