Water intake

Water intake has been studied in 6 papers since 2022: 4 observational studies in people, 1 review; 2 in the past year. The newest paper, Oct 7, 2026: “Multi-grade obesity classification and key lifestyle risk analysis using a learning rate-tuned K-means-XGBoost hybrid approach”.

Intervention

6 papers study it6 findingsUpdated

“Among participants aged over 65 years, low water consumption was associated with increased odds of restrictive and obstructive lung function impairment.”
Association between low water intake and lung function impairment in elderly adults: a cross-sectional studyPublic health action2026doi:10.5588/pha.25.0038

None of its findings points the other way.

  • 3 independent labs in 3 countries
  • Funders: European Commission and 3 more
  • Humans4
  • In silico1

What did studies of Water intake find?

3

Studies of Water intake measured 3 outcomes; the most studied are lean body mass (1 study), body fat mass (1) and kidney function (1).

Lean body mass

upin humans1

1 study
  1. Water intake increases lean body mass in humans (p = 0.021).

    “as well as higher lean body mass (p = 0.021).”

    Humansfemalesn = 195

    Water Intake, Dietary Acid Load, and Body Composition in Aging Females

    Nutrients

Body fat mass

downin humans1

1 study
  1. Water intake decreases body fat mass in humans (p = 0.005).

    “Higher water intake was associated with significantly lower android (p = 0.004), gynoid (p < 0.001), and total body fat mass (p = 0.005)”

    Humansfemalesn = 195

    Water Intake, Dietary Acid Load, and Body Composition in Aging Females

    Nutrients

Kidney function

upin reviews1

1 study
  1. Water intake improves kidney function.

    “Recent evidence from experimental PKD models has shown the potential benefits of caloric restriction, high water intake and especially ketogenic diets in preserving kidney function.”

    Reviewin experimental PKD models

    Can ketogenic dietary interventions slow disease progression in ADPKD: what we know and what we don't

    Clinical kidney journal

What is Water intake linked with?

3

Studies link Water intake with 3 measures, most often obstructive lung function impairment (1 study), restrictive lung function impairment (1) and healthy aging (1).

Obstructive lung function impairment

upin humans1

1 study
  1. Water intake is associated with obstructive lung function impairment in humans.

    “Among participants aged over 65 years, low water consumption was associated with increased odds of restrictive and obstructive lung function impairment.”

    Humans

    Association between low water intake and lung function impairment in elderly adults: a cross-sectional study

    Public health action

More on Obstructive lung function impairment

Restrictive lung function impairment

upin humans1

1 study
  1. Water intake is associated with restrictive lung function impairment in humans.

    “Among participants aged over 65 years, low water consumption was associated with increased odds of restrictive and obstructive lung function impairment.”

    Humans

    Association between low water intake and lung function impairment in elderly adults: a cross-sectional study

    Public health action

More on Restrictive lung function impairment

Healthy aging

upin humans1OR 2.01

1 study
  1. Water intake is associated with healthy aging in humans (OR = 2.01, 95% CI: 1.23–3.30).

    “taking water intake % 5 cups per day (OR = 2.01; 95% CI: 1.23?"3.30)”

    Humansn = 765

    Healthy Aging and its Determinants Among Community-dwelling Older Persons in East Coast, Malaysia: A Multidimensional Assessment

    Oman medical journal

Latest

Nov 2025: 0Dec 2025: 0Jan 2026: 0Feb 2026: 0Mar 2026: 1Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0Sep 2026: 0Oct 2026: 12 papers in 12 months