In today’s world of busy schedules, fad diets, and processed food, B12 deficiency has quietly become a hidden epidemic. Studies suggest that up to 40% of adultsin the U.S. have low or borderline levels.
The risk is even higher if you’re over 50, vegetarian, or take certain medications like acid reducers or metformin. The reason? Vitamin B12 is absorbed through the stomach lining—and age, stress, and modern diets can interfere with that process.
Your body stores B12 for years, but once those reserves run out, symptoms can appear suddenly—and they can affect everything from your mood to your mobility.
So how do you know if you’re at risk? Let’s count down the 9 urgent signs you should never ignore.
#9: Persistent Fatigue That Feels “Different”
Tina, 47, thought her exhaustion was from working long hours. But even after resting all weekend, she felt drained, like her energy was leaking away. Her doctor later found her B12 levels were critically low.
