Certified Nutrition Specialist (CNS) Practice Exam – Prep & Study Guide

Protease inhibitors are primarily found in soybeans and legumes. These compounds play a crucial role in the plant’s defense system against pests and pathogens by inhibiting the action of proteases, enzymes that break down proteins. This inhibition can lead to reduced protein digestibility in humans, yet protease inhibitors are significant in nutrition and health, as they can potentially have effects on protein metabolism and certain diseases.

Soybeans and legumes are rich in these inhibitors, and their presence can contribute to various health benefits, such as improved blood sugar control and cholesterol levels. The impact of these compounds on health, particularly through their role in promoting satiety and modulating digestive enzyme activity, makes them an important focus in discussions about plant-based diets and legume consumption.

Other options, while they may contain different types of functional compounds, do not specifically feature protease inhibitors as a notable characteristic. Dairy products, grains, pseudograins, and teas may have other bioactive substances, but they are not recognized for containing significant levels of protease inhibitors.