Normally I would agree with you but a study I read from 1938 from Switzerland shows that even then the people were not eating slowly and chewing properly or using enough saliva to start the total digestion of their food because of the industrial revolution started by the invention of the steam engine, electricity and gas/diesel motors. The developement of our industry force them to eat faster since they were not paid during breaks or on vacation and their digestive systems suffered badly. Still today, the people eat too fast and too much without enough exercise.
A smoothie (just as pure orange, apple, grapefruit and other pure juices) are very hard for us to digest. More than about one small glass is almost an overdose for a grown adult of orange juice and the same glass would cramp up the intestines of a baby under one year and maybe cause a shock death....Helena has no stomach and everything has to stay in her mouth until enough saliva is mixed in and she has a chance to get something out of it. I will try some body building stuff with more protein and carbs and get her to drink it slow and swallow slow too. Thanks, Gary