Vegans are deficit in b12: http://jamanetwork.com/journals/jamaneurology/fullarticle/784788https://www.ncbi.nlm.nih.gov/pubmed/16219987 http://jamanetwork.com/

Vegans are deficit in b12: http://jamanetwork.com/journals/jamaneurology/fullarticle/784788https://www.ncbi.nlm.nih.gov/pubmed/16219987 http://jamanetwork.com/journals/jamaneurology/fullarticle/78... High fiber diets reduce serum half life of vitamin D3: https://www.ncbi.nlm.nih.gov/pubmed/6299329 https://www.ncbi.nlm.nih.gov/pubmed/6299329 Vegans have weaker bones due to lower calcium intake and vitamin D3 levels: http://jamanetwork.com/journals/jamainternalmedicine/fullarticle/486478 http://jamanetwork.com/journals/jamainternalmedicine/fullart... https://www.ncbi.nlm.nih.gov/pubmed/21092700 https://www.ncbi.nlm.nih.gov/pubmed/21092700 Vegans have a worse memory compared to non vegans due to creatine deficiency in vegans: https://www.ncbi.nlm.nih.gov/pubmed/21118604 https://www.ncbi.nlm.nih.gov/pubmed/21118604 https://www.ncbi.nlm.nih.gov/pubmed/14561278 https://www.ncbi.nlm.nih.gov/pubmed/14561278 Vegans have less gains compared to non vegans: http://m.ajcn.nutrition.org/content/70/6/1032.full http://m.ajcn.nutrition.org/content/70/6/1032.full Vegans are deficient in omega threes: https://www.ncbi.nlm.nih.gov/pubmed/16087975 https://www.ncbi.nlm.nih.gov/pubmed/16087975 https://www.ncbi.nlm.nih.gov/pubmed/16188209 https://www.ncbi.nlm.nih.gov/pubmed/16188209 https://www.ncbi.nlm.nih.gov/pubmed/12323090 https://www.ncbi.nlm.nih.gov/pubmed/12323090 https://www.ncbi.nlm.nih.gov/pubmed/12323085 https://www.ncbi.nlm.nih.gov/pubmed/12323085 Vegans are deficit in carnitine: https://www.ncbi.nlm.nih.gov/pubmed/21753065 https://www.ncbi.nlm.nih.gov/pubmed/21753065 https://www.ncbi.nlm.nih.gov/pubmed/2756917 https://www.ncbi.nlm.nih.gov/pubmed/2756917 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1628441/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1628441/ https://www.ncbi.nlm.nih.gov/pubmed/11043928 https://www.ncbi.nlm.nih.gov/pubmed/11043928 Vegans are deficient in taurine: https://www.ncbi.nlm.nih.gov/pubmed/3354491 https://www.ncbi.nlm.nih.gov/pubmed/3354491 Vegans are deficient in iodine: https://www.ncbi.nlm.nih.gov/pubmed/12748410 https://www.ncbi.nlm.nih.gov/pubmed/12748410 https://www.ncbi.nlm.nih.gov/pubmed/21613354 https://www.ncbi.nlm.nih.gov/pubmed/21613354 Vegans are deficient in Coenzyme Q10: https://www.ncbi.nlm.nih.gov/pubmed/16873950 https://www.ncbi.nlm.nih.gov/pubmed/16873950 Vegans are deficient in iron due to the fact that iron from plant sources is less bioavailable than iron from meat sources: https://ods.od.nih.gov/factsheets/Iron-HealthProfessional/ https://ods.od.nih.gov/factsheets/Iron-HealthProfessional/ https://www.ncbi.nlm.nih.gov/pubmed/11269606 https://www.ncbi.nlm.nih.gov/pubmed/11269606 Vegans are deficient in vitamin A: https://www.ncbi.nlm.nih.gov/pubmed/19103647 https://www.ncbi.nlm.nih.gov/pubmed/19103647 http://m.jn.nutrition.org/content/137/11/2346.full http://m.jn.nutrition.org/content/137/11/2346.full http://healthybabycode.com/why-you-cant-get-vitamin-a-from-eating-vegetables http://healthybabycode.com/why-you-cant-get-vitamin-a-from-e... (studies linked in the article) https://www.sciencedaily.com/releases/2009/11/091118072051.htm https://www.sciencedaily.com/releases/2009/11/091118072051.h... http://researchnews.osu.edu/archive/betacarotene.htm http://researchnews.osu.edu/archive/betacarotene.htm http://ajcn.nutrition.org/content/71/6/1545.full http://ajcn.nutrition.org/content/71/6/1545.full http://www.fasebj.org/content/23/4/1041.full http://www.fasebj.org/content/23/4/1041.full http://www.thehealthyhomeeconomist.com/beta-carotene-vitamin-a-myth http://www.thehealthyhomeeconomist.com/beta-carotene-vitamin... http://empoweredsustenance.com/true-vitamin-a-foods http://empoweredsustenance.com/true-vitamin-a-foods https://www.westonaprice.org/health-topics/abcs-of-nutrition/vitamin-a-vagary https://www.westonaprice.org/health-topics/abcs-of-nutrition... https://www.westonaprice.org/health-topics/abcs-of-nutrition/vitamin-a-saga https://www.westonaprice.org/health-topics/abcs-of-nutrition... https://philmaffetone.com/vitamin-a-and-the-beta-carotene-myth https://philmaffetone.com/vitamin-a-and-the-beta-carotene-my... Calcium in Rats https://www.ncbi.nlm.nih.gov/pubmed/3183773 https://www.ncbi.nlm.nih.gov/pubmed/3183773 Magnesium and Oxalates https://www.ncbi.nlm.nih.gov/pubmed/15035687 https://www.ncbi.nlm.nih.gov/pubmed/15035687 Vegans have a lower sperm count than non vegans: https://www.ncbi.nlm.nih.gov/pubmed/35465 https://www.ncbi.nlm.nih.gov/pubmed/35465 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3257705/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3257705/ Vegans have lower testosterone than non vegans: https://www.ncbi.nlm.nih.gov/pubmed/1435181 https://www.ncbi.nlm.nih.gov/pubmed/1435181 http://m.ajcn.nutrition.org/content/42/1/127.abstract http://m.ajcn.nutrition.org/content/42/1/127.abstract https://www.ncbi.nlm.nih.gov/pubmed/159772 https://www.ncbi.nlm.nih.gov/pubmed/159772 http://m.jap.physiology.org/content/82/1/49 http://m.jap.physiology.org/content/82/1/49 Veganism causes loss of libido and erectile dysfunction: https://www.ncbi.nlm.nih.gov/pubmed/21353476 https://www.ncbi.nlm.nih.gov/pubmed/21353476 Children who are raised on strict vegan diets do not grow normally: https://www.ncbi.nlm.nih.gov/pubmed/4067152 https://www.ncbi.nlm.nih.gov/pubmed/4067152 https://www.ncbi.nlm.nih.gov/pubmed/8005079 https://www.ncbi.nlm.nih.gov/pubmed/8005079 Children develop rickets after prolonged periods of strict vegetarian diets: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1874810/pdf/canmedaj01383-0052.pdf http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1874810/pdf/canm... "There are some links between vegetarians and lower birthweight and earlier labour" https://www.ncbi.nlm.nih.gov/pubmed/7788369 https://www.ncbi.nlm.nih.gov/pubmed/7788369 Most recent studies using more sensitive techniques for detecting B12 deficiency have found that 68% of vegetarians and 83% of vegans are B12 deficient, compared to just 5% off omnivores. https://www.ncbi.nlm.nih.gov/pubmed/12816782 https://www.ncbi.nlm.nih.gov/pubmed/12816782 https://www.ncbi.nlm.nih.gov/pubmed/10966896 https://www.ncbi.nlm.nih.gov/pubmed/10966896 https://www.ncbi.nlm.nih.gov/pubmed/10552882 https://www.ncbi.nlm.nih.gov/pubmed/10552882 --------------------------------- These are case studies: Cerebral atrophy in a vitamin B12-deficient infant of a vegetarian mother: https://www.ncbi.nlm.nih.gov/pubmed/25076673 https://www.ncbi.nlm.nih.gov/pubmed/25076673 Severe megaloblastic anemia in child breast fed by a vegetarian mother: https://www.ncbi.nlm.nih.gov/pubmed/8442642 https://www.ncbi.nlm.nih.gov/pubmed/8442642 Consequences of exclusive breast-feeding in vegan mother newborn - case report: https://www.ncbi.nlm.nih.gov/pubmed/19748244 https://www.ncbi.nlm.nih.gov/pubmed/19748244 Nutritional vitamin B12 deficiency in a breast-fed infant of a vegan-diet mother: https://www.ncbi.nlm.nih.gov/pubmed/3948463 https://www.ncbi.nlm.nih.gov/pubmed/3948463 "We report the case of a 7 month-old girl that presented with acute anemia, generalized muscular hypotonia and failure to thrive. Laboratory evaluation revealed cobalamin deficiency, due to a vegan diet of the mother." https://www.ncbi.nlm.nih.gov/pubmed/18293883 https://www.ncbi.nlm.nih.gov/pubmed/18293883