期刊
NUTRIENTS
卷 13, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/nu13061913
关键词
Vitamin B12; cobalamin; elderly; micronutrient deficiency; hidden hunger; prevention; sustainability
Vitamin B12 is essential and obtained exclusively from diet, with certain population groups at risk of subclinical deficiency. Poor intake of animal products and age-related decrease in intestinal B12 uptake contribute to the risk of deficiency in elderly population.
Vitamin B12 (also known as cobalamin) is an essential water-soluble vitamin that plays a pivotal role for several physiologic functions during one's lifespan. Only certain microorganisms are able to synthetize B12, thus humans obtain cobalamin exclusively from their diet, specifically from animal-derived foods. Specific sub-group populations are at risk of vitamin B12 subclinical deficiency due to different factors including poor intake of animal source foods and age-dependent decrease in the capacity of intestinal B12 uptake. Consumption of animal products produces some negative health issues and negatively impacts sustainability while a plant-based diet increases the risk of B12 deficiency. Taking a cue from the aforementioned considerations, this narrative review aims to summarize facts about B12 deficiency and the burden of inadequate dietary intake in elderly population, as well as to discuss sustainable approaches to vitamin B12 deficiency in aging population.
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