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Additionally, reduced stomach acid production in older adults limits B12 absorption from oral supplements
Last reviewed: May 29, 2026 Last updated: May 29, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations
Vitamin B12 deficiency signs may include soreness of the mouth or tongue and issues with balance and memory
Management: Gentle massage of the area can help distribute the solution
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