No, red light therapy does not increase vitamin D levels.
Vitamin D production in the body depends on ultraviolet B (UVB) radiation, which comes from sunlight. When your skin is exposed to UVB rays, it triggers a chemical reaction that helps your body synthesize vitamin D. Red light therapy, on the other hand, uses visible red and near-infrared wavelengths, which do not have the energy required to produce vitamin D.
What is red light therapy used for?
Red light therapy has been studied for a variety of therapeutic purposes, including:
- Improving skin texture and reducing wrinkles
- Speeding up wound healing
- Reducing joint pain and inflammation
- Supporting muscle recovery and circulation
These benefits are related to cellular energy production and inflammation reduction, not vitamin D metabolism.
How can I naturally boost vitamin D?
To safely maintain healthy vitamin D levels, consider:
- 10–30 minutes of sunlight exposure a few times per week, depending on your skin tone and location
- Eating vitamin D-rich foods such as salmon, tuna, egg yolks, and fortified dairy or plant-based milk
- Taking vitamin D supplements, especially during winter months or if you have limited sun exposure
If you’re unsure about your vitamin D status, a blood test can help, and a healthcare provider can recommend the right dose of supplementation.
Summary
| Therapy Type | Affects Vitamin D? | Primary Benefits |
|---|---|---|
| Red Light Therapy | ❌ No | Skin health, healing, inflammation |
| UVB Light (Sunlight) | ✅ Yes | Natural vitamin D production |
Key takeaway: If your goal is to increase vitamin D, red light therapy won’t help. Stick to safe sun exposure, a vitamin D-rich diet, or supplements.