Articles often claim that there are “3 essential vitamins everyone needs” or “3 vitamins doctors don’t tell you about.” In reality, all vitamins play important roles in health, and the most important ones depend on a person’s age, diet, lifestyle, and medical conditions.
That said, three vitamins that are commonly discussed because deficiencies are relatively common are vitamin D, vitamin B12, and vitamin C.
1. Vitamin D
Vitamin D helps the body absorb calcium and supports:
- Bone health
- Muscle function
- Immune system function
Food Sources
Salmon
Egg
Milk
Signs of Deficiency
- Bone pain
- Muscle weakness
- Increased fracture risk
2. Vitamin B12
Vitamin B12 is important for:
- Red blood cell production
- Nervous system function
- DNA synthesis
Food Sources
Egg
Milk
Salmon
Signs of Deficiency
- Fatigue
- Weakness
- Numbness or tingling
- Memory difficulties
3. Vitamin C
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