The Importance and Precautions of Protein Intake

Many people are showing interest in protein-rich foods these days. This is because protein helps with muscle maintenance and blood sugar control. While natural foods like eggs, meat, and fish are popular, there's also an increasing trend in consuming commercially produced protein supplements. However, alongside these benefits, it's crucial to be aware of the side effects of excessive protein intake. Consuming too much protein can actually lead to blood sugar spikes and put a strain on your kidneys. Therefore, it's essential to consume protein in moderation to reap its health benefits.

Protein's Mechanism in Blood Sugar Regulation

Protein is a key nutrient that promotes insulin secretion. Among the amino acids that make up protein, glutamine, alanine, and arginine stimulate insulin release. In particular, studies have shown that consuming whey protein can improve post-meal insulin secretion and blood sugar response in both healthy adults and individuals with type 2 diabetes. When eating a meal, consuming foods in the order of vegetables (fiber), protein (eggs, meat, etc.), and then carbohydrates (rice) can help mitigate blood sugar spikes.

The Risks of an Excessively High-Protein Diet

According to data from the Korean Diabetes Association, while adequate protein intake stimulates insulin secretion, excessive consumption can lead to hyperglycemia (high blood sugar). This is because protein also stimulates the secretion of glucagon, which, along with insulin, raises blood sugar levels. This increases gluconeogenesis in the liver and elevates cortisol levels, leading to increased insulin resistance. Consequently, hyperglycemia can occur after a certain period. Therefore, it's important to remember that an excessively high-protein diet can lead to increased fat intake along with hyperglycemia.

Distribute Your Intake Across Three Meals

More protein isn't always better. It's crucial to consume an appropriate amount tailored to your activity level and health status. If you're aiming for blood sugar control, a daily intake of about 1.2g of protein per kilogram of body weight is recommended. For instance, an adult weighing 60kg should aim for approximately 72g of protein per day. This can be achieved by consuming a palm-sized portion of lean meat or fish with each of the three meals, or about half a block of tofu per meal. Spreading your intake throughout the day across three meals is more effective than consuming it all at once.

The Importance of Plant-Based Proteins

Even though protein is beneficial for the body, consuming it excessively at once can cause blood sugar spikes and strain your kidneys. These risks can be further amplified if you consume large amounts of meat along with protein supplements. Therefore, it's advisable to balance your intake by increasing consumption of plant-based proteins like beans and tofu, rather than relying solely on animal proteins like meat. Beans are also rich in fiber and other nutrients, making them effective for diabetes prevention. A balanced intake of vegetables, protein, and healthy fats (like unsaturated fatty acids) from sources such as olive oil and perilla oil can lead to successful blood sugar and weight management.