Comment by epsilonic

Not quite. I've been taking Beta-hydroxybutyrate (BHB) salts in powder form, mixed with water. Here is some interesting literature discussing its benefits as a metabolic regulator of proteostasis in aged and Alzheimer-diseased brains:

https://pubmed.ncbi.nlm.nih.gov/37461525/ (same research article referenced in the post link)

I personally take it to manage brain fog due to long-Covid.