1. Nutritional components: Yeast steamed bread is rich in vitamin B and trace elements, such as zinc and iron, while the alkaline components in alkaline steamed bread will destroy vitamins and lead to the loss of nutritional components.
2. Health effects: The alkaline components in alkaline steamed bread may have certain effects on human health, such as hyperacidity and gastric ulcer caused by long-term consumption, while yeast steamed bread will not have adverse effects on human health.