Well Mamie if anything was needed to prove your point it's this Christmas. I went pretty much off piste and savoured the delights of mince pies, Christmas puddings, weird and wonderful Christmas liqueurs, etc.. Not to any great or glutinous extent, but yes I've indulged 
The result is I've had heartburn/ reflux for the first time in nine months, those vague stomach aches, which again were a thing of the past, have reappeared and I've put on 1kg in three days 
This is the result of eating too many carbs, in particular sugary ones, for certain. Remembering I've been eating pretty much what I want in the way of other goods (including cheese, cream and butter) for the last nine months and all these symptoms had vanished and I was steadily losing weight.
You are so right about this way of eating.