Red light increases energy (ATP) production & reduces blood glucose levels.
These findings are from a study in @jbiophotonics which aimed to test the hypothesis that increased ATP production due to photobiomodulation (PBM) will demand increased glucose consumption, and change plasma glucose levels. https://onlinelibrary.wiley.com/doi/10.1002/jbio.202300521
Mitochondria provide the energy for cellular metabolism, using oxygen and glucose to produce the energy-rich nucleoside adenosine triphosphate (ATP).
PBM with long wavelength light between ~650 and 900 nm spanning the visible through to the near infrared range, upregulates mitochondrial production of ATP and also reduces reactive oxygen species.
Longer wavelength light is absorbed by cytochrome C oxidase in the mitochondrial electron transport chain; this leads to an increase in electron transport activity that increases mitochondrial membrane potential and ATP production.
In this study, participants were randomised into either a 670 nm PBM group, or placebo (no light) group at the point of recruitment.
It was shown, with a glucose tolerance test, that PBM of normal subjects significantly reduced blood sugar levels.
In particular, a 15 min exposure to 670 nm light reduced the degree of blood glucose elevation following glucose intake by 27.7%, integrated over 2 h after the glucose challenge.
While the maximum glucose spiking was reduced by 7.5%.
Overall, these results demonstrate that PBM with 670 nm light has potential to reduce blood glucose spikes following meals, which may reduce damaging fluctuations of blood glucose on the body.
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