Phosphatidylcholine is a major component of brain cells. It has four major functions:
Its role in the maintenance of cell membrane integrity is vital to all of the basic biological processes
It is a highly concentrated energy store
It serves as a fuel source
It is an important signal generator
It is called an "essential phospholipid" because the body cannot make enough of it for its requirements, and one must get it from the diet. It is essential for everyone, but especially for the individual with Down syndrome on the road to healing.
Source: Changing Minds Foundation
More choline for mom decreases Down syndrome effects
Down syndrome fetuses dramatically benefit when their mothers increase their intake of the nutrient choline during pregnancy and nursing, report Cornell researchers in the journal Neurobiology of Disease. Increased choline by moms bolsters brain functions and plays a profound health role for Down syndrome offspring throughout their lives.
Increased maternal choline intake improves spatial cognition and attention, and delays aging-related memory decline in normal laboratory rats. The present findings with Down syndrome mice indicate that increased maternal choline consumption may also lessen the impairment of individuals with Down syndrome and reduce the risk of Alzheimer’s disease, which is seen in nearly all Down syndrome individuals.
Source: Cornell Chronicle
A rich source of choline is to be found from soy, however there is a great deal of controversy around its effect on the thyroid, and for that reason it is not something I would personally use for my child. Given that 94% of soy grown in the US is also GMO, the use of soy must be given careful consideration.