any of the class of phospholipids occurring chiefly in the brain and spinal cord, composed sphingosine, and a fatty acid
www.collinsdictionary.com
Phospholipids are a class of lipids that are a major component of all cell membranes.
www.google.com
THE Major Genetic Risk Factor Mitigated by Choline Supplementation
Urinary MMA is a Superior Test For Detecting B12 Deficiency, and for Good Reason.
The MMA Test Teaches a Lot About Why B12 is So Important for Energy
First Study to Find a Link
