Phospholipids are a major component of your cell membranes. Phosphatidyl choline and phosphatidyl Serine are phospholipids which are essential for brain health. The former you can get from egg yolks and the latter you can get from organ meats such as liver.
Choline, which you can get from phosphatidyl choline (also known as lechitin), is needed to make the memory transmitter acetylcholine.
In the chapter “PhosphoLipids – Your Memory’s best friends“, the book “Optimum Nutrition for the Mind” writes …
“A deficiency in it [acetylcholine] is probably the single most common cause for declining memory. Fish, especially sardines, are rich in it…”
Choline also improve liver function.
Phosphatidyl serine is known as the memory molecule is equally important.
But don’t just randomly pick lecithin off the supplement shelf. And if you see “soy lecithin” in the ingredients of processed food, that is not what you want. There is a big difference between lecithin and soy lecithin as mentioned in thruthnhealth.com Also read article on bodyecology.com and thedoctorweightsin.com
Personally, I would go with high quality Phosphatidyl choline (PC) and phosphatidyl Serine (PS) supplements instead.