The article made it sound like the body of the drinkable ketones were not amino-acid-dervied.
If not, it'd be interesting to find
a) if non-amino-derived ketones do a better job then amino-derived at sparing muscle
b) how much of the ketones are burned by other tissues before the brain grabs its share.
I’m personally leery about drinking (or eating) ketones as there is a feedback mechanism in your body to prevent over production . Not sure if ketoacidosis could be caused by drinking ketones but it certainly is plausible.
What is the typical blood concentration mmol/dl when a diabetic goes into ketoacidosis?
And does the body have a mechanism simply to refuse absorption from the digestive track, or to increase the internal thermostat to increase burn rate, if one drinks them as part of a catabolic-sparing weight loss program?
Don’t know any of the answers to your very good questions.
Symptoms of overdose of ketones are pretty ugly, though.