Another look at: fuel + O2 --> CO2 + H2O. Developing a water-oriented perspective.

Area of Science:

• Human Nutrition
• Metabolic Physiology
• Epidemiology

Background:

• Water is essential for numerous physiological functions, yet environmental water stress poses a constant threat.
• Metabolic intermediates like glycerol and amino acids play roles in maintaining intracellular fluid balance.
• Current understanding often overlooks the role of metabolism in hydration status.

Purpose of the Study:

• To propose a water-oriented metabolism framework for nutrition and epidemiology research.
• To explore the link between metabolic adaptations to water scarcity and chronic disease.
• To highlight the significance of hydration status in human health.

Main Methods:

• Conceptual review and synthesis of existing research on metabolism and water balance.
• Interpretation of physiological processes (satiety, fuel selection, hormonal control) through a water-centric lens.
• Analysis of preliminary evidence linking metabolic adaptations to chronic diseases.

Main Results:

• Metabolic pathways are integral to maintaining intracellular fluid homeostasis.
• Processes like satiety and hormonal control can be viewed as water-oriented.
• Chronic suboptimal water intake may necessitate metabolic adaptations relevant to disease etiology.
• Preliminary data suggest links between water-oriented metabolism and obesity, diabetes, cardiovascular disease, hypertension, and cancer.

Conclusions:

• A water-oriented metabolism perspective offers a novel framework for understanding human health.
• Metabolic adaptations to inadequate water intake may be a significant factor in chronic disease development.
• Further research in human nutrition and epidemiology is warranted to explore this paradigm.