Frontiers in Nutrition (Jul 2018)

Nutritional Ketosis Increases NAD+/NADH Ratio in Healthy Human Brain: An in Vivo Study by 31P-MRS

  • Lijing Xin,
  • Özlem Ipek,
  • Maurice Beaumont,
  • Maya Shevlyakova,
  • Nicolas Christinat,
  • Mojgan Masoodi,
  • Norman Greenberg,
  • Rolf Gruetter,
  • Bernard Cuenoud

DOI
https://doi.org/10.3389/fnut.2018.00062
Journal volume & issue
Vol. 5

Abstract

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Ketones represent an important alternative fuel for the brain under glucose hypo-metabolic conditions induced by neurological diseases or aging, however their metabolic consequences in healthy brain remain unclear. Here we report that ketones can increase the redox NAD+/NADH ratio in the resting brain of healthy young adults. As NAD is an important energetic and signaling metabolic modulator, these results provide mechanistic clues on how nutritional ketosis might contribute to the preservation of brain health.

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