Anecdotally, over the years I've noticed that eating nuts vs eating peanut-butter has different effects on my weight-loss progress. While whole nuts seem to be minimally processed by my digestion and have no perceived negative impact regardless of amount; peanut-butter has a noticeable effect in non-trivial amounts.
My hypothesis is that the net-carbohydrates are no longer net-carbohydrates because the fiber in the nut is no longer physically holding the nut together. It has become more absorbable.
This got me to wondering, if I take a cauliflower and steam it to the point it becomes "mashed potatoes" does this have an effect on how I absorb its macro-nutritional content? If it is soft and mashed, have I broken down the fiber holding its contents together and made it no longer a net-carb calculation?