Anyone gets nervous when they hear that their blood sugar levels are high during a health check-up. Even if you haven't been diagnosed with diabetes, if your fasting blood sugar or postprandial blood sugar is borderline, it's not something to overlook. Blood sugar issues often arise gradually as a result of long-standing eating habits rather than suddenly one day. Fortunately, managing blood sugar can start with understanding dietary principles that can be applied in daily life rather than complex medical knowledge.
The Essence of Blood Sugar Issues is 'Rapid Spikes'
The reason blood sugar becomes a problem is not simply because the numbers are high. More importantly, it is about how quickly blood sugar rises and how much it fluctuates. Eating refined carbohydrates like white rice, flour-based foods, and sugary drinks alone causes blood sugar to spike rapidly in a short time. Diets high in refined carbohydrates have been reported to significantly increase postprandial blood sugar and insulin secretion, and the more this pattern is repeated, the greater the risk of developing type 2 diabetes. In response to rapid blood sugar spikes, insulin is secreted all at once, and as blood sugar drops again, symptoms like postprandial drowsiness, fatigue, and hunger can easily recur. If this state continues for a long time, the risk of diabetes also increases.
There is no need to completely reduce or eliminate carbohydrates for blood sugar management. Rather, what is important is which carbohydrates you eat and how you eat them. For example, choosing foods that raise blood sugar slowly, such as vegetables, legumes, and small amounts of fruit, instead of white rice and flour, while not eating carbohydrates alone but combining them with protein is key. Even with the same bread, eating it with eggs, yogurt, or nuts rather than alone can significantly reduce the blood sugar burden.
Protein is known only as a nutrient for muscles, but it also plays an important role in blood sugar management. Consuming protein along with carbohydrates consistently shows a tendency to reduce the spike in postprandial blood sugar and to maintain satiety for a longer time. Eating proteins like fish, chicken, tofu, and eggs slows down the digestion and absorption of food, leading to a gradual rise in postprandial blood sugar. Additionally, it helps maintain satiety for a longer time, which can reduce unnecessary snacking or late-night eating.
Fat is Not Something to Avoid, but to Select
Not all fats are bad for blood sugar. Natural fats like olive oil, avocado, and nuts can provide satiety even in small amounts and help reduce blood sugar fluctuations. On the other hand, trans fats found in fried foods and processed products, as well as excessive saturated fats, can be burdensome not only for blood sugar management but also for cardiovascular health, so caution is needed.
Blood sugar does not suddenly worsen overnight. Even if it is currently within the normal range, if you frequently feel drowsy after meals and crave sweet foods, it may be a warning sign. However, if you have already been diagnosed with diabetes or are undergoing medication or insulin treatment, any dietary changes should be discussed with healthcare professionals.
Blood sugar management does not start with a special diet or extreme restrictions. The key is to develop the habit of making each meal a bit more balanced. Instead of thinking about what to completely cut out, consider how to combine foods. The choice you make for one meal today can change your blood sugar tomorrow.
