Vitamin B12 Sources in Traditional Korean Foods
Author Information
Author(s): Kwak Chung Shil, Lee Mee Sook, Oh Se In, Park Sang Chul
Primary Institution: Seoul National University
Hypothesis
Korean traditional foods may contain hidden sources of vitamin B12 that contribute to the health of centenarians.
Conclusion
Traditional Korean foods, especially fermented ones, provide significant amounts of vitamin B12, helping to maintain health in centenarians despite a low intake of animal products.
Supporting Evidence
- Fermented soybean products like Doenjang and Chungkookjang contain high levels of vitamin B12.
- Seaweeds consumed by Koreans also provide significant amounts of vitamin B12.
- Despite low animal product intake, the prevalence of vitamin B12 deficiency among Korean centenarians is not higher than in Western populations.
Takeaway
Korean centenarians eat a lot of traditional fermented foods that help them get enough vitamin B12, even though they don't eat much meat.
Methodology
Nutritional surveys and blood tests were conducted on Korean centenarians to assess vitamin B12 levels and dietary intake.
Potential Biases
Potential bias due to the exclusion of centenarians living in nursing homes, which may affect the generalizability of the findings.
Limitations
The study may not represent centenarians living in long-term care facilities, and the sample may be higher functioning than the general population.
Participant Demographics
Participants were Korean centenarians aged 100-108, predominantly female, with high illiteracy rates.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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