There is no harm. Douchi is a fermented food, which is rich in protein, minerals, vitamins and other nutrients. It is good for your health, and eating lobster sauce in moderation will not cause direct harm to your eyes. Douchi is a traditional condiment for fermented bean products in China. It is made of black beans or soybeans as the main raw materials, and soybean protein is decomposed by Mucor, Aspergillus or bacterial protease. When it reaches a certain level, it is made by adding salt, wine and drying to inhibit the activity of enzyme and delay the fermentation process.