John discusses why vegans and vegetarians should supplement with creatine monohydrate. Link to vid discussed What is Creatine? Why & When to Take Creatine? http://www.youtube.com/watch?v=iDzKae45TQU References Adam M. Persky, Gayle A. Brazeau Clinical Pharmacology of the Dietary Supplement Creatine Monohydrate Pharmacological Reviews June 1, 2001 vol. 53 no. 2 161-176 http://pharmrev.aspetjournals.org/content/53/2/161.long Ryan D Schoch, Darryn Willoughby, and Mike Greenwood The Regulation and Expression of the Creatine Transporter: A Brief Review of Creatine Supplementation in Humans and Animals Journal of the International Society of Sports Nutrition 2006, 3:60-66 doi:10.1186/1550-2783-3-1-60 http://www.jissn.com/content/3/1/60 Anne MJ Gilsing, Francesca L Crowe, (PhD), Zouë Lloyd-Wright, (PhD), Thomas AB Sanders, (DSc), Paul N Appleby, (MSc), Naomi E Allen, (DPhil), and Timothy J Key, (DPhil) Serum concentrations of vitamin B12 and folate in British male omnivores, vegetarians, and vegans: results from a cross-sectional analysis of the EPIC-Oxford cohort study Eur J Clin Nutr. 2010 September; 64(9): 933--939. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2933506/?tool=pubmed Wolfgang Herrmann, Heike Schorr, Rima Obeid, and Jürgen Geisel Vitamin B-12 status, particularly holotranscobalamin II and methylmalonic acid concentrations, and hyperhomocysteinemia in vegetarians Am J Clin Nutr July 2003 vol. 78 no. 1 131-136 http://ajcn.nutrition.org/content/78/1/131.long Stead LM, Au KP, Jacobs RL, Brosnan ME, Brosnan JT. Methylation demand and homocysteine metabolism: effects of dietary provision of creatine and guanidinoacetate. Am J Physiol Endocrinol Metab. 2001 Nov;281(5):E1095-100. http://www.ncbi.nlm.nih.gov/pubmed/11595668 Venderley AM, Campbell WW. Vegetarian diets : nutritional considerations for athletes. Sports Med. 2006;36(4):293-305. http://www.ncbi.nlm.nih.gov/pubmed/16573356 Delanghe J, De Slypere JP, De Buyzere M, Robbrecht J, Wieme R, Vermeulen A. Normal reference values for creatine, creatinine, and carnitine are lower in vegetarians Clinical Chemistry August 1989 vol. 35 no. 8 1802-1803 http://www.clinchem.org/content/35/8/1802.long Johannes Michalak, Xiao Chi Zhang and Frank Jacobi Vegetarian diet and mental disorders: results from a representative community survey International Journal of Behavioral Nutrition and Physical Activity 2012, 9:67 doi:10.1186/1479-5868-9-67 http://www.ijbnpa.org/content/9/1/67/abstract