7 Signs You May Lack B12—And What You Should Eat Instead
1. Persistent Fatigue That Won’t Go Away 1. Persistent Fatigue That Won’t Go Away (image credits: unsplash) Chronic tiredness is one of the most reported early warning signs of vitamin B12 deficiency. According to a 2024 clinical update from the Mayo Clinic, B12 is essential for red blood cell formation, which helps transport oxygen throughout the body. Without enough B12, oxygen delivery drops, leaving you feeling drained even after a full night’s sleep. Recent data from the National Institutes of Health (NIH) in January 2025 shows that nearly 15% of adults over 60 in the U.S. report unexplained fatigue linked … Read more