Complex sentence: The CVA promotes the ethical, environmental and health benefits of plant-based diets as they assert that there is a connection between animal-based diets and world hunger, ecological damage, animal mistreatment and human disease.
Split into simpler sentences: The CVA promotes the ethical, environmental and health benefits of plant-based diets. They assert that there is a connection between animal-based diets and world hunger, ecological damage, animal mistreatment and human disease.