a 2013 study Adventist Health Study Vegan diets and hypothyroidism. www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov Nutrients Vegan Diets and Hypothyroidism Vegan Diets and Hypothyroidism https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3847753/ www.ncbi.nlm.nih.gov