Vitamin B12 Deficiency Linked to Increased Fracture Risk in Older Adults

A new study reveals a significant correlation between low vitamin B12 levels and higher fracture risk among individuals aged 50 and above.

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Aapla Nagpur Desk
30 Sept 2026, 10:03 AM IST · 2 min read
Source: Nature
Vitamin B12 Deficiency Linked to Increased Fracture Risk in Older Adults
KEY TAKEAWAYS
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Vitamin B12 deficiency is associated with a 33% increased risk of fractures in older adults.

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The study analyzed data from over 230,000 patients aged 50 and older.

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Findings suggest a need for further research to clarify the causal relationship.

A recent study has established a notable connection between vitamin B12 deficiency and an elevated risk of fractures in adults aged 50 years and older. Conducted using data from the TriNetX Global Collaborative Network, the research involved a retrospective multicenter cohort analysis that focused on patients who underwent vitamin B12 testing. The study specifically compared individuals with vitamin B12 deficiency, defined as levels of 199 pg/mL or lower, to those with normal levels ranging from 300 to 900 pg/mL.

The analysis included a total of 115,735 patients in each group after applying a 1:1 propensity score matching method. The results indicated that individuals with vitamin B12 deficiency faced a 33% higher hazard of experiencing a fracture during the study period, with a hazard ratio (HR) of 1.33. This correlation remained consistent even when a sensitivity analysis was conducted over a 1 to 5-year period, yielding a similar HR of 1.37.

Further exploratory analyses suggested that the association extended to outcomes related to fractures, falls, and osteoporosis, although the study does not establish vitamin B12 deficiency as a direct causal factor for fractures. The findings are particularly relevant for healthcare providers who manage older patients, emphasizing the importance of monitoring vitamin B12 levels as part of comprehensive geriatric care.

The implications of this study are significant for public health, especially considering the aging population. As vitamin B12 deficiency can lead to various health complications, including an increased risk of fractures, healthcare systems may need to prioritize nutritional assessments in older adults. This could potentially lead to preventive measures that reduce fracture incidence in this vulnerable demographic.

Looking ahead, further research is warranted to explore the underlying mechanisms linking vitamin B12 levels to fracture risk. Future studies could also investigate whether vitamin B12 supplementation may serve as a preventive strategy against fractures in older adults, paving the way for enhanced clinical guidelines and patient care protocols.

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