It will definitely affect it. From the perspective of dietary science, KFC's soybean milk, milk, coffee and other products are basically prepared and have no original ecological nutritional value. However, fried foods such as fried dough sticks and potato chips are generally not suitable for breakfast. Therefore, Chinese breakfast is the most nutritious. On the surface, KFC gives people an illusion of cleanliness and hygiene, but it is not as nutritious as millet porridge and mung bean porridge that we often eat, and cakes are not as affordable as steamed bread, bean paste buns and flower rolls.
Therefore, it is not recommended to eat regular KFC breakfast.