Many friends have books on health preservation, but it must be reminded that Chinese medicine pays attention to systematic science and does not use western medicine. Simply put, it should be traced back to the source. It is precisely because Chinese medicine is a systematic science that China has the saying that "either a good doctor or a good doctor".
The homology of medicine and food means basically the same. Chinese medicine emphasizes nourishing, and the premise of nourishing is the body itself, which is supported by food. Medicine is the last choice of Chinese medicine. But drugs come from plants, animals and minerals, especially the first two, which have a natural and close relationship with food, so this sentence is made. Why is medicine the last choice? Because the related order of Chinese medicine is: food, acupuncture and medicine. That's why.