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REVIEW article

Front. Physiol.

Sec. Metabolic Physiology

Volume 16 - 2025 | doi: 10.3389/fphys.2025.1621358

Dual Role of Lactate in Human Health and Disease

Provisionally accepted
  • 1Emory University Medicine, Atlanta, United States
  • 2University of Lucknow, Lucknow, India
  • 3Department of Pharmacology and Life Sciences, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), Puncak Alam, 42300, Selangor, Malaysia, Puncak Alam, Malaysia
  • 4Vincent Center for Reproductive Biology, Massachusetts General Hospital, Harvard Medical School, Boston, United States

The final, formatted version of the article will be published soon.

Lactate, traditionally seen as a byproduct of anaerobic metabolism, has gained attention for its dual role in human health. While it is associated with muscle fatigue, lactate also plays a crucial role in various physiological and pathological processes. This review explores lactate's dual nature as both beneficial and detrimental. Under normal physiological conditions, lactate is an essential energy substrate, involved in the Cori cycle, where it is converted back to glucose in the liver. However, excessive lactate accumulation is linked to health issues, including cancer, metabolic disorders, and neurological diseases. The Warburg effect in cancer, characterized by increased lactate production even in oxygen-rich environments, promotes tumor progression and therapy resistance. In diseases like malaria and ischemic stroke, high lactate levels contribute to tissue damage and metabolic disturbances. Recent research also highlights lactate's beneficial roles, including regulation of immune responses, enhanced exercise performance, and neuronal signaling. Furthermore, gut microbiota significantly impacts lactate metabolism, where beneficial bacteria use lactate to maintain gut health, while some pathogenic bacteria exacerbate disease through excess lactate production. Emerging therapeutic potential of lactate, including lactate dehydrogenase inhibitors, offers promising treatment avenues. This review provides a comprehensive overview of lactate's complex role in health and disease, emphasizing the need for targeted strategies to harness its benefits while mitigating its harmful effects.

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Received: 02 May 2025; Accepted: 18 Jul 2025.

Copyright: © 2025 Kumar, Sahu, JAWAID, Jayasingh Chellammal and UPADHYAY. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: PRABHAT UPADHYAY, Vincent Center for Reproductive Biology, Massachusetts General Hospital, Harvard Medical School, Boston, United States

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