However celery is made of amino acids and enzymes.... it requires virtually no energy to digest. Ham on the other hand is made of protein. Protein which puts a load on the system and requires the body to excrete certain enzymes to attempt to break it down. Most fruit and vegetables break down by themselves for most part. That eases the strain on the body, which is helpful when you are ill.Gato_Solo said:More vegetarian propaganda? It takes longer to digest celery than a slice of ham.