I’m not a soylent user, but I have an observation for soylent users.
The all-liquid food may not be good for your tooth/gums.
The good old nature’s rule: if you don’t use it you lose it.
This is being empirically backed up by the tooth problems that one of my relatives has. The person had some teeth absent, which resulted in gums in that area of mouth not being exercised, which in turn resulted in bone tissue dissolution in that area. Pretty much like it’s described here: http://www.implantdentistryinstitute.com/pdfs/Changes%20in%20the%20Jaw%20Bones.pdf
I believe this issue deserves better investigation and some of you guys should consult with a dentist about this.