Litteraturkällor

Andrès E, Goichot B, Schlienger JL. Food cobalamin malabsorption: a usual cause of vitamin B12 deficiency. Arch Intern Med. 2000

Caruso R, Pallone F, Stasi E, Romeo S, Monteleone G. Appropriate nutrient supplementation in celiac disease. Ann Med 2013; 45:522–31.

Duodecim: Käypä hoito -suositukset: Diabetes – uhka terveydelle, Päivitys 5.1.2017.

Duthie SJ, Whalley LJ, Collins AR, Leaper S, Berger K, Deary IJ. Homocysteine, B vitamin status, and cognitive function in the elderly. Am J Clin Nutr. 2002.

Fineli-tietokanta, THL: http://www.fineli.fi/­component.php?compid=2269

Houston DK, Johnson MA, Nozza RJ, Gunter EW, Shea KJ, Cutler GM, Edmonds JT. Age-related hearing loss, vitamin B-12, and folate in elderly women. Am J Clin Nutr. 1999.

Lachner C, Steinle NI, Regenold WT. The neuropsychiatry of vitamin B12 deficiency in elderly patients. J Neuropsychiatry Clin Neurosci 2012; 24:5–15.

Lapsi, perhe ja ruoka -raportti. Imeväis- ja leikki-ikäisten lasten, odottavien ja imettävien äitien ravitsemussuositus, Sosiaali- ja terveysministeriö 2004.

L H Allen, J Casterline, Vitamin B-12 deficiency in elderly individuals: diagnosis and requirements, The American Journal of Clinical Nutrition, Volume 60, Issue 1, July 1994, Pages 12–14.

Loikas S, Koskinen P, Irjala K, Löppönen M, Isoaho R, Kivelä SL, Pelliniemi TT. Vitamin B12 deficiency in the aged: a population-based study. Age Ageing 2007; 36:177–83.

Loikas S, Paju A, Koskela K, Kouri T. B12-vitamiinin puutteen parempaan diagnostiikkaan. Suom Lääkäril 2016;71:1065–71.

McCaddon A. Vitamin B12 in neurology and ageing; clinical and genetic aspects. Biochimie 2013; 95:1066–76.

Moore E, Mander A, Ames D, Carne R, Sanders K, Watters D. Cognitive impairment and vitamin B12: a review. Int Psychogeriatr 2012; 24:541–56.

Selhub J, Troen A, Rosenberg IH. B vitamins and the aging brain. Nutr Rev 2010;68 Suppl 2:S112-8.

Sharabi A, Cohen E, Sulkes J, Garty M. Replacement therapy for vitamin B12 deficiency: comparison between the sublingual and oral route. Br J Clin Pharmacol. 2003.

Suomalaiset ravitsemussuositukset, Valtion ravitsemusneuvottelukunta 2014: http://www.ravitsemusneuvot­telukunta.fi/files/images/­vrn/2014/ravitsemussuosituk­set_2014_fi_web.pdf

Pawlak R, Parrott SJ, Raj S, Cullum-Dugan D, Lucus D. How prevalent is vitamin B(12) deficiency among vegetarians? Nutr Rev 2013; 71:110–7.

Volkov I, Rudoy I, Freud T, Sardal G, Naimer S, Peleg R, Press Y. Effectiveness of vitamin B12 in treating recurrent aphthous stomatitis: a randomized, double-blind, placebo-controlled trial. J Am Board Fam Med. 2009.