28 P. Lagiou et al., “Low carbohydrate-high protein diet and mortality in a cohort of Swedish women.” Journal of Internal Medicine 261, no. 4 (April 2007): 366–74.

29 P. Lagiou et al., “Low carbohydrate-high protein diet and incidence of cardiovascular diseases in Swedish women: prospective cohort study.” BMJ (Clinical Research Ed.) 344 (June 2012): e4026.

30 F. Tremblay et al., “Identification of IRS-1 Ser-1101 as a target of S6K1 in nutrient– and obesity-induced insulin resistance.” Proceedings of the National Academy of Sciences of the United States of America 104, no. 35 (August 2007): 14056–61.

31 F. Tremblay et al., “Overactivation of S6 kinase 1 as a cause of human insulin resistance during increased amino acid availability.” Diabetes 54, no. 9 (September 2005): 2674–84.

32 N. E. Allen et al., “The associations of diet with serum insulin-like growth factor I and its main binding proteins in 292 women meat-eaters, vegetarians, and vegans.” Cancer Epidemiology, Biomarkers and Prevention: A Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology 11, no. 11 (December 2002): 1441–48.

33 M. J. Orlich et al., “Vegetarian dietary patterns and mortality in Adventist Health Study 2.” JAMA Internal Medicine 173, no. 13 (July 2013): 1230–38.

34 M. F. McCarty et al., “The low-methionine content of vegan diets may make methionine restriction feasible as a life extension strategy.” Medical Hypotheses 72, no. 2 (February 2009): 125–28.

35 S. S. Hall, “Longevity.” National Geographic, May 2013.

36 A. Fasano, “Surprises from celiac disease.” Scientific American 301, no. 2 (August 2009): 54–61.

37 A. N. Pedersen et al., “Health effects of protein intake in healthy elderly populations: a systematic literature review.” Food and Nutrition Research 58 (January 2014).