When Vitamin B12 levels get deficient, the body's vital functioning can go for a toss, and over time, it can show up in some ways.

https://timesofindia.indiatimes.com/life-style/health-fitness/health-news/vitamin-b12-deficiency-warning-signs-of-extremely-low-vit-b12-levels-which-can-affect-your-health/photostory/87254138.cms

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