Fatigue

Everybody gets fatigued from time to time. Getting enough sleep, eating a healthy diet, and exercising frequently, on the other hand, will help most people feel more energized. Constant fatigue and weakness, even after resting, may indicate an underlying health problem or imbalance. Fatigue is one of the signs and symptoms of a B12 deficiency.

You'll probably feel fatigued if your B12 levels are low or deficient. B12 is required for the normal functioning of your body's cells. As a result, low B12 levels can reduce normal red blood cell production, limiting oxygen delivery. Megaloblastic anemia can be caused by a B12 or folate deficiency. Large, abnormal, and immature red blood cells occur as a result of this condition, as does impaired DNA synthesis. You'll feel weak and exhausted if your body doesn't have enough healthy red blood cells to carry oxygen to your tissues. Even if your B12 levels are regarded within range or only borderline low, you might experience fatigue and other symptoms associated with B12 deficiency.