PDF(Pubmed)
Abstract：
With a significant portion of the population adopting veganism and conflicting views among nutrition professionals regarding the necessity of vitamin B12 supplementation, this review aims to explore existing studies evaluating interventions through food supplementation. It focuses on the impact of vitamin B12 deficiency across different demographics. The present study seeks to understand how research has addressed the relationship between the rise in veganism and vitamin B12 deficiency over the past decade. A scoping review was conducted following the PRISMA flow diagram. Studies from 2010 to 2023 were identified using Boolean operators and key terms in electronic databases such as PubMed/MEDLINE, Web of Science, and EBSCO (Library, Information Science & Technology Abstracts, and Academic Search Complete). Out of 217 articles identified, 70 studies were included. The topical analysis categorized the studies into three groups: those associating vitamin B12 deficiency with diseases (n = 14), those analyzing the dietary habits of vegetarian individuals (vegan or not) without a specific focus on vitamin B12 (n = 49), and those addressing food guides and nutrition institution positions (n = 7). The authors concluded that vitamin B12 deficiency is prevalent among vegans due to limited consumption of animal products. For vegetarians, supplementation is an efficient means of treating and preventing deficiency; a daily dose of 50 to 100 micrograms is advised. There are still significant gaps in the research, nevertheless, such as the absence of randomized controlled trials evaluating various forms or dosages of vitamin B12 among vegetarians and the requirement for more information and awareness of the vitamin\'s significance in vegan diets.
摘要：
随着很大一部分人口采用素食主义和营养专业人员之间关于补充维生素B12的必要性的观点相互矛盾，本综述旨在探讨现有的评估食物补充干预措施的研究.它侧重于维生素B12缺乏对不同人口统计学的影响。本研究旨在了解研究如何解决过去十年中素食主义的增加与维生素B12缺乏之间的关系。根据PRISMA流程图进行了范围审查。2010年至2023年的研究使用布尔运算符和电子数据库中的关键术语进行识别，如PubMed/MEDLINE，WebofScience,和EBSCO(图书馆，信息科学与技术文摘,和学术搜索完成)。在确定的217篇文章中，包括70项研究。主题分析将研究分为三组：将维生素B12缺乏与疾病相关联的研究（n=14），那些分析素食主义者（素食主义者或非素食主义者）的饮食习惯而没有特别关注维生素B12（n=49），以及解决食品指南和营养机构职位的人员（n=7）。作者得出结论，由于动物产品的消费有限，维生素B12缺乏症在素食主义者中普遍存在。对于素食者来说，补充是治疗和预防缺乏症的有效方法；建议每日剂量为50至100微克。研究仍有很大差距,然而，例如，缺乏评估素食者维生素B12各种形式或剂量的随机对照试验，以及对更多信息的要求和对维生素在素食饮食中的重要性的认识。
