I totally agree. I've tried the HVMN drink and about 20 seconds in a 10 mile TT, but that can happen wekk-to-week on the same course anyway. I think Team Sky did research into them, but yes, they don't use them and their nutritionist said there were more predictable gains from other nutrition strategies in the race.I was responding to a post that said it ketone esters were developed in conjunction with Loughborough and another that inferred they were developed with involvement with Team Sky. Neither true. Kieran Clarke's department and spin off company developed them.
There's no credible proof they work as yet.
Team Ineos don't use them.