B 12 14 (turkish Boys).7z.002 Apr 2026

The study "Vitamin B12 Levels of Subjects Aged 0–24 Year(s) in Konya, Turkey" establishes reference ranges for Turkish youth, highlighting that vitamin B12 levels decrease with age, with a higher prevalence of deficiency among adolescent boys. Based on 1,109 samples, researchers defined normal levels for boys at 127–576 pg/mL, crucial for addressing deficiencies that impact neurological development. Read the full study at PMC .