Effects of Alkaline Drinking Water on Hydration, Metabolism, and Physical Performance in Humans

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Published: Dec 31, 2025
Keywords:
Alkaline Water Humans Physical

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Phiphat Nonthanathorn
Program Management Unit for Human Resources & Institutional Development, Research and Innovation (PMU-B)
Chriss Uptegrove
Agricultural Training and Development Centre (Wat Yansangvararam Woramahaviharn) Under His Majesty The King Initiative

Abstract

Alkaline water, defined as water with a pH above 7—has gained popularity due to claims related to improved hydration, enhanced exercise recovery, and potential benefits for metabolic health. However, scientific evidence supporting these claims remains limited and inconsistent. This mini-systematic review synthesizes human studies published between 2000 and 2022 that evaluated the physiological effects of alkaline water on hydration, blood viscosity, metabolic risk factors, and physical performance. Evidence suggests that alkaline water may improve rehydration and lactate clearance in athletes during short-term interventions. However, for the general population, results are inconclusive, and long-term health benefits have not been clearly demonstrated. More rigorous longitudinal and randomized controlled trials are required to determine the true physiological role of alkaline water.

Article Details

Issue
Vol. 8 No. 2 (2025): International Journal of Science and Innovative Technology (IJSIT)
Section
Research Article
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Author Biographies

Phiphat Nonthanathorn, Program Management Unit for Human Resources & Institutional Development, Research and Innovation (PMU-B)

Alkaline water, defined as water with a pH above 7—has gained popularity due to claims related to improved hydration, enhanced exercise recovery, and potential benefits for metabolic health. However, scientific evidence supporting these claims remains limited and inconsistent. This mini-systematic review synthesizes human studies published between 2000 and 2022 that evaluated the physiological effects of alkaline water on hydration, blood viscosity, metabolic risk factors, and physical performance. Evidence suggests that alkaline water may improve rehydration and lactate clearance in athletes during short-term interventions. However, for the general population, results are inconclusive, and long-term health benefits have not been clearly demonstrated. More rigorous longitudinal and randomized controlled trials are required to determine the true physiological role of alkaline water.

Chriss Uptegrove, Agricultural Training and Development Centre (Wat Yansangvararam Woramahaviharn) Under His Majesty The King Initiative

Alkaline water, defined as water with a pH above 7—has gained popularity due to claims related to improved hydration, enhanced exercise recovery, and potential benefits for metabolic health. However, scientific evidence supporting these claims remains limited and inconsistent. This mini-systematic review synthesizes human studies published between 2000 and 2022 that evaluated the physiological effects of alkaline water on hydration, blood viscosity, metabolic risk factors, and physical performance. Evidence suggests that alkaline water may improve rehydration and lactate clearance in athletes during short-term interventions. However, for the general population, results are inconclusive, and long-term health benefits have not been clearly demonstrated. More rigorous longitudinal and randomized controlled trials are required to determine the true physiological role of alkaline water.

References

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