2026 Light Therapy & Blood Sugar Control Review

Welcome again. Hope you're enjoying the fall time - well at most places on this planet!

We've got some great new research on light therapy for blood sugar - which is universally important for every single human being on this planet.

We've also got several new reviews by Alex, Bart on the latest news in the space, and some new eye health content by us.

Stay tuned:

Review Of 20 Studies On Glucose Metabolism Analyzed: The Findings

I've written about blood sugar management and light therapy before. Here's a blood sugar newsletter and another one here. And there's my type II diabetes and light therapy article here:

(In type II diabetes your cells become resistant to insulin, meaning that they won't take up sugar in your blood as a result, which creates chronically high blood sugar levels)

And...

We just saw another July 2026 review study exploring all earlier publications on red light therapy and blood sugar control. Type II diabetes is explicitly mentioned.

Here's the conclusion, which is hopeful on the one hand but a bit depressing on the other:

"[Red light therapy] demonstrates considerable therapeutic potential for the management of complications associated with [Type II Diabetes], while in terms of glycemic control, the results were, for now, discouraging. However, further studies involving larger sample sizes and more standardized protocols are required to validate its efficacy and to determine the best therapeutic conditions."

So, some evidence for type II diabetes symptoms, but not enough evidence yet for blood sugar control.

Which is kind of interesting to me, as this is what the researchers literally write on the topic in the full text of the publication:

They reiterate that statement later on in the paper (the Discussion section). But, toe me, that's somewhat weird as red light therapy comes almost without side effects, especially when used properly, and that's not the case for many blood sugar control pharmaceuticals.

They also mention the 13.7% reduction in blood sugar, which is an impressive effect that warrants more investigation.

Then, also, the researchers admit that there's good outcomes for diabetic neuropathy, ulcers, and eye problems (diabetic retinopathy). I've covered these topics in the past, here:

And:

But to take a step back. I do agree with the researchers on several things. We need more human studies with light therapy for diabetes. We need more universal protocols, or at least being able to distinguish between good and bad ones. We need more science on which wavelengths to use and what dose, treatment frequency, etc.

But that's not what we have today. And to me, it's just perspective and your philosophy on medicine. If you're willing to "take a bet" on a few studies with very positive outcomes, even though there's uncertainty, that's OK. Some people are not OK with that and want multiple if not dozens of the highest quality studies in medicine (Randomized Controlled Trials) - with a placebo and intervention group.

Yes, having those studies creates more certainty but it also takes time and lots of money.

So, I'd ask: If you or one of your loved ones had problems with type II diabetes, and given that we only have limited data right now, but the data shows very positive effects, would you recommend red light therapy to them? For me the answer is "yes".

Here Are Our Latest Light Therapy Insiders' Articles:

Every single article that we've published recently - you can find the videos in the article itself:

Bestqool Pro 300 Review: Is This $810 Red Light Therapy Panel Worth It? - Alex reviews this BestQool panel. The panel has some unique benefits but also some huge downsides you should know about before considering.
EVOLVING Red Light Therapy Products 2026: What’s New? - The latest red light therapy news for Oct 2026 - Bart discusses super expensive handheld devices, many new products on the market, the latest science, and much more.
Red Light Therapy For Cataracts: Finally Some Exciting Science In 2026! - We get this question a lot, about red light therapy for cataracts. Now, in 2026, new studies have emerged, and Bart analyzed all of the science here.
PlatinumLED BioMax Go: They Finally Made a Handheld. Is It Any Good? - Yes, PlatinumLED have their first handheld device released and Alex reviews it in detail. There are some really unique benefits/features to this handheld device.

Also, Check Out Some Of Our Other Content:

Below you'll find some of our best content that you shouldn't miss:

Light Therapy Insiders Science Tool

Search for different health conditions and benefits to get Bart's breakdown of the science on that topic, plus recommended devices and light therapy routines.

We've been trying to simplify our message as much as possible: