Vitamin B12 is an essential water-soluble vitamin of the B group provided by the diet based on animal products. It is essential for the proper functioning of 3 systems: production of red blood cells, functioning of the nervous system and synthesis of DNA. Thus, a deficiency in vitamin B12 (Biermer's disease) can cause a multitude of side effects that I explain in this video. ???????? Join this channel to benefit from exclusive advantages (Quiz, ...): / @linexplain ???? Don't forget to subscribe / @linexplain ???? Videos that might interest you: - Antidiabetics: • Antidiabetics in Diabetes ... - Amlodipine and its side effects: • Amlodipine and its SIDE EFFECTS ... - Beta-blockers: • What is a Beta-Blocker? ???????? Find me on my networks: ???? Instagram: https://www.instagram.com/linexplain/... ???? Facebook: / linexplain ???? Twitter: / linexplain1 Summary: 00:00 Introduction 00:18 What is vitamin B12 00:50 Food sources of vitamin B12 01:00 Causes of deficiency 02:21 Psychological effects 04:17 Neurological effects 07:06 Hematological effects 08:20 Oral effects 09:00 Dermatological effects 10:55 Summary ????Sources: - Biochemistry, Prépa-pharma, De Boeck - Vitamin B12 deficiency - A 21st century perspective https://pubmed.ncbi.nlm.nih.gov/25824... - Serum holotranscobalamine, vitamin B12, folic acid and homocysteine ​​levels in patients with vitiligo https://pubmed.ncbi.nlm.nih.gov/22182... - Genetically predicted levels of folate, vitamin B12, and risk of autoimmune diseases: A Mendelian randomization study https://pubmed.ncbi.nlm.nih.gov/36969... ????????‍????Software used: - Final cut Pro X - Canva This youtube channel does not provide medical advice, and the information available on this channel does not offer diagnosis or treatment advice. The information presented in this video is for educational purposes only, and the information presented here should not be used as an alternative to the diagnosis and treatment of an individual by a healthcare professional. Please seek the help of medical experts for the diagnosis and treatment of medical conditions.