参考文献
1. 王宇. (2020). 菠菜与鸡蛋的营养价值及搭配方式. 《营养学杂志》，(3), 45-48.
2. Smith, J. (2018). Nutritional benefits of spinach and eggs: A review. Journal of Nutrition, 25(2), 78-82.
3. National Institutes of Health. (2019). Dietary Guidelines for Americans.
