The worst symptoms of B12 deficiency can significantly impair your quality of life because your tissues and organs aren't receiving enough oxygen.
Vitamin B12 deficiency, also known as cobalamin deficiency, occurs when the body doesn't have enough B12 to function properly. This can lead to a variety of symptoms, some of which can be quite severe.
Severe Symptoms of B12 Deficiency
According to the provided reference, some of the most impactful and troubling symptoms related to B12 deficiency include:
- Weak Muscles: Muscle weakness can make everyday activities difficult and reduce overall strength.
- Numbness: Numbness, particularly in the hands and feet, can affect sensation and coordination.
- Trouble Walking: Difficulty walking stems from neurological issues and muscle weakness, impacting mobility.
- Increased Heart Rate: An elevated heart rate can cause palpitations, anxiety, and may indicate the body is struggling to deliver oxygen.
Other Notable Symptoms
In addition to the symptoms listed above, other symptoms associated with B12 deficiency include:
- Fatigue: Persistent tiredness and lack of energy.
- Nausea: Feeling sick to the stomach.
- Weight Loss: Unintentional decrease in body weight.
- Irritability: Increased feelings of frustration or agitation.
Why These Symptoms Occur
These symptoms arise because B12 is crucial for red blood cell formation and neurological function. A deficiency impairs oxygen delivery throughout the body (as your tissues and organs don't get enough oxygen), leading to fatigue, weakness, and neurological problems like numbness and difficulty walking. The increased heart rate is the body's attempt to compensate for the reduced oxygen levels.
