Vitamin D, 25-OH, Total

What it tests for:
This test measures the total level of Vitamin D (25-hydroxyvitamin D) in your blood — the most accurate way to assess your body’s Vitamin D status.

Why it matters:

• Supports bone strength, immune health, and mood regulation

• Deficiency is common and linked to fatigue, poor immunity, depression, and muscle weakness

• Especially important if you have limited sun exposure or darker skin

What’s measured:

• Both Vitamin D2 (from food/supplements) and Vitamin D3 (produced from sunlight)

Maintaining optimal levels of Vitamin D is key for energy, immunity, hormonal health, and disease prevention.