The original paper actually explains it pretty well…to paraphrase:
“effects are probably related to the fact that powdered food is more readily digested/absorbed”
Meaning - what seems pretty obvious to me - when you don’t have to break food down as much it is easier to absorb, resulting in higher glucose levels due to rapid absorption. GASP
What the imbecile who wrote this article didn’t consider is the fact that the glycemic index of Soylent was carefully determined so as to make it suitable for as many people as possible. That, and to my knowledge there have been zero reports of hyperglycemia in beta testers or users so far.
So, I don’t think that anyone is in any danger of hyperglycemia due to their Soylent being powdered.
To claim that it must be related to mastication seems fairly daft to me. Even if that was the case, couldn’t we then bind Soylent powder into Soylent bars, convenient for chewing?
The lengths to which some folks go to hold onto their ideals sometimes astounds me…not to mention the absolutely horrible quality of the writing of this article and many others that hate on Soylent.