This 2019 review paper discusses the potential of pea protein as a viable substitute for soybean or animal proteins in functional food applications.
Composition, physicochemical properties of pea protein and its application in functional foods.
https://pubmed.ncbi.nlm.nih.gov/31429319/
This journal article from 2021 says that ketone metabolism can protect neurons in the brain and that to promote ketone metabolism, medium-chain triglyceride (MCT) oil and a ketogenic diet could be introduced as an alternative source of energy in the brains of patients with Alzheimer's disease.
Alzheimer’s Disease and Type 2 Diabetes Mellitus: The Use of MCT Oil and a Ketogenic Diet.