Dietary Supplements:
When to Use Them, and When to Avoid Them
Introduction
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1. Biotin (Vitamin B7)
Considerations:
Potential Risks:
The Bottom Line:
2. Zinc

Considerations:
Potential Risks:
The Bottom Line:
3. Vitamin C
Considerations:
Potential Risks:
The Bottom Line:
4. Nicotinamide (Vtamin B3)
Considerations:
Potential Risks:
The Bottom Line: