What are some common sources of complex carbohydrates?

Complex carbohydrates are an essential part of a healthy diet, primarily known for providing sustained energy and important nutrients. Potatoes and whole grains are excellent examples of complex carbohydrates because they are high in fiber and digest more slowly than simple carbohydrates, leading to greater satiety and stable blood sugar levels.

Whole grains, such as brown rice, quinoa, and oats, are composed of longer chains of sugar molecules that take longer to break down during digestion, providing a more prolonged energy release. This makes them healthier choices compared to simple carbohydrates, which tend to cause faster spikes in blood sugar.

Similarly, potatoes contain complex carbohydrates as well, along with vital vitamins, minerals, and fiber, making them nutritious and filling. Their starch content qualifies them as a significant source of complex carbohydrates, beneficial for a well-rounded diet.

Other options don't align with the definition of complex carbohydrates. Meat and fish primarily provide protein; eggs are rich in protein and fats; and processed sugars and oils typically consist of simple carbohydrates and unhealthy fats rather than complex carbohydrates. Thus, the correct answer highlights food items that are rich in beneficial complex carbohydrates, supporting overall health and energy needs.