JUN 27, 2026 · JOURNAL ARTICLE
U-Shaped Association Between Serum Vitamin B12 and All-Cause Mortality in Adults With Obesity in the United States: A Prospective Cohort Study.
Current Therapeutic Research, Clinical and Experimental
Observational cohort study with a U-shaped association and identified threshold effect, but the authors explicitly state causality cannot be inferred and acknowledge the need for further studies to establish causality.
Reported
Sample size8301
All-cause mortality events1347
Median follow-up duration9.08 years