health brief

Red Light Therapy to Reduce Glucose Levels

Pamela Carpenter/

The U.S. Centers for Disease Control estimates that 37.3 million Americans, or 11.3 percent of the population, have diabetes, which means the body does not produce enough insulin, causing too much blood glucose (sugar) to stay in the bloodstream. Over time, diabetes can cause serious health problems, such as heart disease, vision loss and kidney disease.

Researchers from the University of London conducted a study of the effects of red light therapy on blood sugar levels. In the study, 15 participants received 670 nanometers of red light onto approximately 800 square centimeters of their exposed back for 15 minutes. The 15-person control group had the same equipment placed on their back, but the light was not turned on.

The result was a significant reduction in blood sugar levels in the group exposed to red light following a glucose intake by the participants. Over a two-hour period following the therapy, maximum glucose spiking was reduced by 5.1 percent. Red light exposure can be used to reduce blood glucose spikes following meals as a safe, non-invasive treatment for diabetes management at home.


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