Dr. Piankouyu has recently become very popular. His core argument is that nothing beats eating eggs and milk. Whether it's bird's nest, donkey-hide gelatin, or other more expensive supplements, they are not as good as eggs and milk for nutrition. Eggs don't need to be classified as farm eggs or feed eggs; their nutritional value is roughly the same. The most important foods for ordinary people are eggs, milk, and vegetables. His words are likely to deal a heavy blow to many businesses selling nutritional supplements and health products.