After reading article, I wanted to clarify that coconut oil should be avoided. Hexacosanol is a long chain fatty acid and found in vegetable waxes (eat the skin); especially in cabbage. Looks like beeswax is a really good source, and it looks like we can buy honey with pieces of honeycomb in the jar.

It can also be purchased as a supplement.

Here is further info:

Neurotrophic effect of naturally occurring long-chain fatty alcohols on cultured CNS neurons.