1 Shea TB. Choline and phosphatidylcholine may maintain cognitive performance by multiple mechanisms. Am J Clin Nutr. 2019 Dec 1;110(6):1268-1269. 2 Hasselmo ME. The role of acetylcholine in learning and memory. Curr Opin Neurobiol. 2006;16(6):710-715. https://pubmed.ncbi.nlm.nih.gov/17011181/ . 3 Parker AG, Byars A, Purpura M, Jäger R. 3 Parker AG, Byars A, Purpura M, Jäger R. The effects of alpha-glycerylphosphorylcholine, caffeine or placebo on markers of mood, cognitive function, power, speed, and agility. J Int Soc Sports Nutr. 2015;12(Suppl 1):P41 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4595381/ 4 The critical role of phosphatidylcholine and phosphatidylethanolamine metabolism in health and disease. Biochimica et Biophysica Acta (BBA) – Biomembranes. Volume 1859, Issue 9, Part B, September 2017, Pages 1558-1572. 5 The Journal of Experimental Biology 200, 2927–2936 (1997) 6 Smithson, Shelley. “Genetically modified animals could make it to your plate with minimal testing—and no public input.” Grist.org. July 30, 2003. http://www.grist.org/article/and3/ (01/01/11) 7 Ylilauri MPT, Voutilainen S, Lonnroos E, et al. Associations of dietary choline intake with risk of incident dementia and with cognitive performance: the Kuopio Ischaemic Heart Disease Risk Factor Study. Am J Clin Nutr 2019;110(6):1416-23  https://pubmed.ncbi.nlm.nih.gov/31360988/ 8 Data On File.