Feeling drained, unmotivated, or forgetful? These might be more than just a bad day—they could signal a vitamin B12 deficiency. Vitamin B12 is crucial for your body’s energy production and overall health, but many of its deficiency symptoms are often overlooked. From tingling sensations to mood changes, understanding the warning signs is the first step toward better health.

A vitamin B12 deficiency can manifest in several ways, and the symptoms aren’t always obvious. Common signs include fatigue, brain fog, and low mood, but it can also cause physical and neurological issues such as:

Tingling or numbness in the hands, feet, or legs
Difficulty walking or balance problems
A swollen or inflamed tongue
Jaundiced skin
Paranoia or hallucinations
Weakness or anemia