Lactate can serve as a surrogate indicator for CO2 production in metabolic assessments.

“and of course there's there's a requirement for a certain amount of energy to be turned around per time that's why for example if you look at lactate as let's say as an IND or as a or as a surrogate because we can again if you go back all the way to stomry and it said we already said C6 h12 06 glucose broken down to lactate and these kind of things we already know here how much CO2 that is being produced in this process there at certain ratios but since we also know the ratio between glucose and laced as well we can use that also as surrogate to have more or less the same confirmations as well or the same indications as well”