Uploaded June 2026 | Updated September 2026, 2 weeks ago
Can red light therapy replace sunlight? In this video, I break down the science behind sunlight, vitamin D, nitric oxide, circadian rhythm, and photobiomodulation to explain what red light therapy can and cannot replicate.
We examine why large-scale vitamin D supplementation studies failed to replicate many of the health benefits associated with sunlight exposure and explore the underlying biology of UVB, UVA, blue light, far infrared, red light, and near infrared light.
I also compare sunlight and red light therapy panels, including my own spectrometer measurements of sunlight’s red and near-infrared wavelengths in New Zealand and Dubai.
Below is the resources I mentioned in my "The Truth About Sunlight, Vitamin D & Red Light Therapy" video.
⭐ The D-Health Trial: thelancet.com/journals/landia/article/PIIS2213-8587(21)00345-4/abstract
⭐ Vitamin D supplementation and major cardiovascular events: pubmed.ncbi.nlm.nih.gov/37380191
⭐ Sunlight and health: shifting the focus from vitamin D3 to photobiomodulation by red and near-infrared light: pubmed.ncbi.nlm.nih.gov/32464190
⭐ My Sunlight Vs Red Light Therapy: Exciting Experiment!: lighttherapyinsiders.com/sunlight-vs-red-light-therapy
Additional resources:
⭐ Light Therapy Insiders – “Help Me” Shopping Tool
👉 aferg.co/help
⭐ Red Light Therapy Discount Page
👉 aferg.co/deals
#sunlight #sunlightbenefits #redlighttherapybenefits
00:00 - Sunlight, Vitamin D & The Big Question
01:31 - Why Vitamin D Supplements Failed In Large Trials
03:13 - The 5 Major Health Pathways Of Sunlight
05:13 - Does Sunlight Contain Enough Red & Near Infrared Light?
06:58 - Can Red Light Therapy Replace The Sun?
10:21 - Where Red Light Therapy Actually Overlaps With Sunlight
13:00 - Final Verdict: Should You Use Sunlight & Red Light Therapy Together?
Can red light therapy replace sunlight? In this video, I break down the science behind sunlight, vitamin D, nitric oxide, circadian rhythm, and photobiomodulation to explain what red light therapy can and cannot replicate.
We examine why large-scale vitamin D supplementation studies failed to replicate many of the health benefits associated with sunlight exposure and explore the underlying biology of UVB, UVA, blue light, far infrared, red light, and near infrared light.
I also compare sunlight and red light therapy panels, including my own spectrometer measurements of sunlight’s red and near-infrared wavelengths in New Zealand and Dubai.
Below is the resources I mentioned in my "The Truth About Sunlight, Vitamin D & Red Light Therapy" video.
⭐ The D-Health Trial: thelancet.com/journals/landia/article/PIIS2213-8587(21)00345-4/abstract
⭐ Vitamin D supplementation and major cardiovascular events: pubmed.ncbi.nlm.nih.gov/37380191
⭐ Sunlight and health: shifting the focus from vitamin D3 to photobiomodulation by red and near-infrared light: pubmed.ncbi.nlm.nih.gov/32464190
⭐ My Sunlight Vs Red Light Therapy: Exciting Experiment!: lighttherapyinsiders.com/sunlight-vs-red-light-therapy
Additional resources:
⭐ Light Therapy Insiders – “Help Me” Shopping Tool
👉 aferg.co/help
⭐ Red Light Therapy Discount Page
👉 aferg.co/deals
#sunlight #sunlightbenefits #redlighttherapybenefits
00:00 - Sunlight, Vitamin D & The Big Question
01:31 - Why Vitamin D Supplements Failed In Large Trials
03:13 - The 5 Major Health Pathways Of Sunlight
05:13 - Does Sunlight Contain Enough Red & Near Infrared Light?
06:58 - Can Red Light Therapy Replace The Sun?
10:21 - Where Red Light Therapy Actually Overlaps With Sunlight
13:00 - Final Verdict: Should You Use Sunlight & Red Light Therapy Together?
