Financial support for this project was provided by the Kaiser Permanente Southern California Regional Research Committee. Beeson WL, Mills PK, Phillips RL, Andress M, Fraser GE. Chronic disease among seventh-day adventists, a low-risk group - rationale, methodology, and description of the population. Cancer. 1989;64:570–81. Burlingame B, Dernini S. Sustainable diets and biodiversity: directions and solutions for policy, research and action. Proceedings of the International Scientific Symposium, Biodiversity and Sustainable Diets United Against Hunger. Rome, Italy: FAO Headquarters; 2010. p. 83.

Jaceldo-Siegl K, Lutjohann D, Sirirat R, Mashchak A, Fraser GE, Haddad E. Variations in dietary intake and plasma concentrations of plant sterols across plant-based diets among North American adults. Mol Nutr Food Res. 2017. https://doi.org/10.1002/mnfr.201600828 Key TJ, Appleby PN, Crowe FL, Bradbury KE, Schmidt JA, Travis RC. Cancer in British vegetarians: updated analyses of 4998 incident cancers in a cohort of 32,491 meat eaters, 8612 fish eaters, 18,298 vegetarians, and 2246 vegans. Am J Clin Nutr. 2014;100:378S–385S. Casson RJ, Kahawita S, Kong A, et al. Exceptionally low prevalence of refractive error and visual impairment in schoolchildren from Lao People’s Democratic Republic. Ophthalmology. 2012;119(10):2021–2027.The details of the IRB/oversight body that provided approval or exemption for the research described are given below:

Wu LJ, You QS, Duan JL, et al. Prevalence and associated factors of myopia in high-school students in Beijing. PLoS One. 2015;10(3):e0120764. Sabate J, Wien M. Vegetarian diets and childhood obesity prevention. Am J Clin Nutr. 2010;91:1525S–1529S.

What to eat on a vegan diet

Harvard T. H. Chan (2018): Vegetables and Fruits. Available at: https://www.hsph.harvard.edu/nutritionsource/what-should-you-eat/vegetables-and-fruits/ [11.06.2018] Sabate J, Sranacharoenpong K, Harwatt H, Wien M, Soret S. The environmental cost of protein food choices. Public Health Nutr. 2014;18:2067–73. https://doi.org/10.1017/S1368980014002377.