Complex carbohydrates are found in vegetables, fruits, beans/legumes, and whole grains. You will find many vegetables and some fruits in the recipes, so the complex carbs are amply present in those recipes. The recipes here are generally void of grains to emphasize the carbohydrates coming from colorful, nutrient-rich vegetable sources, which many people are very low on consuming and which we know contribute to brain health. If you want to add in grains to these recipes, use 100% whole grains as much as possible to keep the fiber content high, minimizing impact to blood sugar and inflammation. Best!