Introduction
Vitamin B12, also known as cobalamin, is an essential nutrient that plays a key role in red blood cell formation, nerve function, brain health, and DNA synthesis. Since the body does not produce B12 on its own, it must be obtained through diet or supplements. A deficiency can lead to serious health problems, but its symptoms often develop gradually and may be overlooked.
Many people fail to recognize early warning signs of B12 deficiency, mistaking them for stress, aging, or other health issues. Below are some commonly ignored symptoms of vitamin B12 deficiency that require attention.
1. Persistent Fatigue and Weakness
One of the earliest and most overlooked signs of B12 deficiency is unexplained fatigue. Since B12 helps produce red blood cells that carry oxygen throughout the body, a deficiency can lead to anemia, causing:
- Chronic tiredness and lack of energy
- Weakness in muscles
- Shortness of breath, even with minimal activity
People often dismiss this symptom as work-related exhaustion or aging, delaying proper diagnosis and treatment.
2. Tingling and Numbness (Nerve Problems)
For the neurological system to remain healthy, vitamin B12 is necessary. Insufficient B12 can cause nerve injury, which can result in:
- Tingling or numbness in hands and feet
- A “pins-and-needles” sensation
- Difficulty walking, balance issues, or muscle weakness
These symptoms often worsen over time, and many people mistake them for circulation problems or aging-related nerve issues.
