NANP Board Practice Exam

What is the "Second meal effect"?

1. The effect of one meal on the appetite for the next meal

2. The ability of one meal to improve glucose tolerance of the next meal

3. The digestion speed of a second meal

4. The calorie content comparison between two meals

The correct answer is: The ability of one meal to improve glucose tolerance of the next meal

The concept of the "Second meal effect" refers to how one meal can enhance the body's glucose tolerance for the subsequent meal. This phenomenon is particularly significant in the context of managing blood sugar levels, as consuming certain foods can lead to improved insulin sensitivity and better glucose regulation during the next meal. The first meal, especially when it contains specific macronutrient profiles or fiber, can have lasting benefits that extend into the body's response to what it consumes later. This effect underscores the importance of meal composition not just for immediate energy but also for how the body handles glucose over time, emphasizing the potential for strategic meal planning in dietary practices. In contrast, the other options focus on different aspects of meal interactions that do not capture the essence of the "Second meal effect." For instance, while appetite modulation may correlate with meal frequency, it does not specifically address glucose tolerance. Similarly, digestion speed pertains to how quickly meals are processed, and calorie comparison is about energy content rather than metabolic response.