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Food

Water

Hydration status affects cognition, appetite regulation, and exercise performance.[2844,3116,3535, etc.]

Superscript reference numbers link to the Sources bibliography.

Strong Evidence
PerformanceMetabolic HealthCognitive

Composite Rating

3.8/5

Blends evidence depth, community direction, safety friction, and completeness.

Evidence Intensity

100/100

High depth from human/RCT/meta counts

Community Direction

0

Mixed / Neutral • confidence Minimal

Safety Friction

89/100

High signal from adverse/interaction markers

Data Completeness

100%

Studies 16 • mentions 0 • links 25

Not medical advice. This product is for educational and informational purposes only. It does not diagnose, treat, cure, or prevent any disease and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions regarding a medical condition.

FDA disclaimer: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Results may vary. Not intended for use by pregnant or nursing women, individuals under 18, or those with known medical conditions without physician consultation.

If you are experiencing a medical emergency, call 911 or your local emergency number immediately.

Implementation Blueprint

Classification: prioritize.[1147,1307,2844, etc.]

Best fit: All users, especially high-exercise or warm-climate populations..[1147,1307,2844, etc.]

Goal alignment: Performance, Metabolic Health, Cognitive.[1147,1307,2844, etc.]

Classification

Prioritize

Evidence Tier

HIGH

Best Fit

All users, especially high-exercise or warm-climate populations.

Primary Focus

Performance, Metabolic Health

Safety and Pitfalls

  • Electrolyte replacement may be required for prolonged sweat losses.

At-A-Glance Evidence Architecture[2844,3116,3535, etc.]

Clinical Depth

Humans: 2,694 • RCTs: 211 • Meta: 24

Cohort / Real-World

Cohort signals: 189

Safety Markers

Adverse signals: 96 • Interactions: 0

Evidence Tracking

Freshness, trend, and study timeline for this item

Evidence Tracking

Status

New Evidence

Trend

→ Stable evidence base

Depth

2694 total studies · 5 recent

Timeline

20172025

Top Signal Metrics[2844,3116,3535, etc.]

Total indexed

2,694

Human studies

2,694

Randomized trials

211

Cohort signals

189

Safety adverse signals

96

In vitro / tissue

64

Community Direction Mix[1147,1307,6447]

Weighted direction score: 0 (Mixed / Neutral)

Evidence Quality Summary[2844,3116,3535, etc.]

High when there are >=2 human meta-analyses, or strong human trial/cohort volume with substantial human literature.

Total indexed

2,694

Human studies

2,694

Randomized trials

211

Cohort signals

189

Safety adverse signals

96

In vitro / tissue

64

Meta-analyses

24

Animal-only studies

0

Study Type Breakdown

Distribution of evidence by study design strength

Meta-AnalysesLevel 1a24
Randomized TrialsLevel 1b211
Cohort StudiesLevel 2b189
Human Studies (other)Level 3-42,270
All IndexedAll levels2,694
100

Evidence Strength: High

Top Human Studies[2844,3116,3535, etc.]

PMID 34536492 • 2022 Jan

Nonpharmacologic Treatment for Children with Functional Constipation: A Systematic Review and Meta-analysis.

J Pediatr

Open PubMed

PMID 32045491 • 2020 Feb 11

Water for preventing urinary stones.

Cochrane Database Syst Rev

Open PubMed

PMID 38594662 • 2024 Apr 9

Timing of early water intake post-general anaesthesia: a systematic review and meta-analysis.

BMC Anesthesiol

Open PubMed

Community Report Frequency[1147,1307,6447]

Benefit reports: 0

Adverse reports: 0

No-effect reports: 0

Mixed reports: 0

Unclear reports: 0

Signal confidence: 0.00

Top Reported Effects[1147,1307,6447]

Benefits

  • Performance: 1
  • Metabolic Health: 1
  • Cognitive: 1

Adverse

  • Electrolyte replacement may be required for prolonged sweat losses: 1

No Effect

  • insufficient no-effect reports captured: 0

Community confidence 0.00 with mentions: benefit 0, adverse 0, no-effect 0.

Search fetch failed: Failed to fetch after retries: https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=8&q=%22water%22%20(diet%20OR%20nutrition%20OR%20meals%20OR%20side%20effects%20OR%20experience%20OR%20results)%20(subreddit%3Anutrition%20OR%20subreddit%3AScientificNutrition%20OR%20subreddit%3Aloseit%20OR%20subreddit%3AMealPrepSunday%20OR%20subreddit%3Aketo%20OR%20subreddit%3Afasting%20OR%20subreddit%3Amediterraneandiet%20OR%20subreddit%3Avegan%20OR%20subreddit%3Avegetarian%20OR%20subreddit%3Acarnivorediet%20OR%20subreddit%3Abiohackers%20OR%20subreddit%3Alongevity)

Community Evidence Examples[1147,1307,6447]

aggregate • unclear

No directional first-hand mentions captured in the current community corpus; source links are retained for traceability.

Open mention

Primary Source Links

Evidence Sources

  • https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=(%22water%20intake%22%20AND%20humans%5BMeSH%20Terms%5D)%20AND%20(diet*%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20consumption%5BTitle%2FAbstract%5D%20OR%20feeding%5BTitle%2FAbstract%5D%20OR%20nutrition%5BTitle%2FAbstract%5D)
  • https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=(%22water%20intake%22%20AND%20humans%5BMeSH%20Terms%5D)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(diet*%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20consumption%5BTitle%2FAbstract%5D%20OR%20feeding%5BTitle%2FAbstract%5D%20OR%20nutrition%5BTitle%2FAbstract%5D)
  • https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=(%22water%20intake%22%20AND%20humans%5BMeSH%20Terms%5D)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(diet*%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20consumption%5BTitle%2FAbstract%5D%20OR%20feeding%5BTitle%2FAbstract%5D%20OR%20nutrition%5BTitle%2FAbstract%5D)%20AND%20randomized%20controlled%20trial%5BPublication%20Type%5D

Scientific Evidence Notes[2844,3116,3535, etc.]

1. PubMed triage evidence summary: Water

PUBMED • Humans + preclinical triage

Counts from structured PubMed query set for diet/intake context.

Outcome: Humans 2694, RCT 211, meta 24, cohort 189.[2844,3116,3535, etc.]

Open source
2. Nonpharmacologic Treatment for Children with Functional Constipation: A Systematic Review and Meta-analysis.

PUBMED • 2022 • Human evidence curation set

PMID 34536492 from J Pediatr.

Outcome: See linked PubMed abstract for methods and outcomes.[, etc.]

[1147,1307,2844, etc.]
Benefit
0
Adverse0
No Effect0
Mixed0

No directional mention volume was resolved; fallback profile metadata is shown in other sections.

Composite of study volume, RCTs, and meta-analyses

PMID 28829398 • 2017 Aug 22

Prevention and Therapy of Type 2 Diabetes-What Is the Potential of Daily Water Intake and Its Mineral Nutrients?

Nutrients

Open PubMed

PMID 34186361 • 2021 Jul-Aug

Water intake and risk of type 2 diabetes: A systematic review and meta-analysis of observational studies.

Diabetes Metab Syndr

Open PubMed

PMID 38612997 • 2024 Mar 27

Water Intake and Adiposity Outcomes among Overweight and Obese Individuals: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Nutrients

Open PubMed

PMID 32340375 • 2020 Apr 23

Effect of Increased Daily Water Intake and Hydration on Health in Japanese Adults.

Nutrients

Open PubMed

PMID 30285042 • 2018 Nov 1

Effect of Increased Daily Water Intake in Premenopausal Women With Recurrent Urinary Tract Infections: A Randomized Clinical Trial.

JAMA Intern Med

Open PubMed

PMID 34601077 • 2021 Nov

The effects of 6-month hydrogen-rich water intake on molecular and phenotypic biomarkers of aging in older adults aged 70 years and over: A randomized controlled pilot trial.

Exp Gerontol

Open PubMed

PMID 33780940 • 2020

Early Coaching to Increase Water Intake in CKD.

Ann Nutr Metab

Open PubMed

PMID 37977257 • 2024 Feb 1

A choice architecture intervention targeting school meals and water frequency intake: A school-based randomized trial.

Appetite

Open PubMed

PMID 38319283 • 2022 Jan

Prescribed Water Intake in Autosomal Dominant Polycystic Kidney Disease.

NEJM Evid

Open PubMed

PMID 38542795 • 2024 Mar 19

Effects of Mindful Eating in Patients with Obesity and Binge Eating Disorder.

Nutrients

Open PubMed

PMID 32960634 • 2020 Oct 21

[The importance of water consumption in health and disease prevention: the current situation].

Nutr Hosp

Open PubMed

PMID 36108868 • 2023 Jan 1

Detection of various microplastics in placentas, meconium, infant feces, breastmilk and infant formula: A pilot prospective study.

Sci Total Environ

Open PubMed

PMID 39784501 • 2025 Feb 1

The association between domestic water hardness and kidney stone disease: a prospective cohort study from the UK Biobank.

Int J Surg

Open PubMed

Fallback search fetch failed: Failed to fetch after retries: https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=12&q=water

  • https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=(%22water%20intake%22%20AND%20humans%5BMeSH%20Terms%5D)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(diet*%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20consumption%5BTitle%2FAbstract%5D%20OR%20feeding%5BTitle%2FAbstract%5D%20OR%20nutrition%5BTitle%2FAbstract%5D)%20AND%20meta-analysis%5BPublication%20Type%5D
  • https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=(%22water%20intake%22%20AND%20humans%5BMeSH%20Terms%5D)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(diet*%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20consumption%5BTitle%2FAbstract%5D%20OR%20feeding%5BTitle%2FAbstract%5D%20OR%20nutrition%5BTitle%2FAbstract%5D)%20AND%20(cohort%5BTitle%2FAbstract%5D%20OR%20prospective%5BTitle%2FAbstract%5D%20OR%20longitudinal%5BTitle%2FAbstract%5D)
  • https://pubmed.ncbi.nlm.nih.gov/34536492/
  • https://pubmed.ncbi.nlm.nih.gov/32045491/
  • https://pubmed.ncbi.nlm.nih.gov/38594662/
  • https://pubmed.ncbi.nlm.nih.gov/28829398/
  • https://pubmed.ncbi.nlm.nih.gov/34186361/
  • https://pubmed.ncbi.nlm.nih.gov/38612997/
  • https://pubmed.ncbi.nlm.nih.gov/32340375/
  • https://pubmed.ncbi.nlm.nih.gov/30285042/
  • https://pubmed.ncbi.nlm.nih.gov/34601077/
  • https://pubmed.ncbi.nlm.nih.gov/33780940/
  • https://pubmed.ncbi.nlm.nih.gov/37977257/
  • https://pubmed.ncbi.nlm.nih.gov/38319283/
  • https://pubmed.ncbi.nlm.nih.gov/38542795/
  • https://pubmed.ncbi.nlm.nih.gov/32960634/
  • https://pubmed.ncbi.nlm.nih.gov/36108868/
  • Community Sources

    • https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=8&q=%22water%22%20(diet%20OR%20nutrition%20OR%20meals%20OR%20side%20effects%20OR%20experience%20OR%20results)%20(subreddit%3Anutrition%20OR%20subreddit%3AScientificNutrition%20OR%20subreddit%3Aloseit%20OR%20subreddit%3AMealPrepSunday%20OR%20subreddit%3Aketo%20OR%20subreddit%3Afasting%20OR%20subreddit%3Amediterraneandiet%20OR%20subreddit%3Avegan%20OR%20subreddit%3Avegetarian%20OR%20subreddit%3Acarnivorediet%20OR%20subreddit%3Abiohackers%20OR%20subreddit%3Alongevity)
    • https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=12&q=water
    • https://www.reddit.com/search/?q=Water
    2844,
    3116,
    3535
    Open source
    3. Water for preventing urinary stones.

    PUBMED • 2020 • Human evidence curation set

    PMID 32045491 from Cochrane Database Syst Rev.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    4. Timing of early water intake post-general anaesthesia: a systematic review and meta-analysis.

    PUBMED • 2024 • Human evidence curation set

    PMID 38594662 from BMC Anesthesiol.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    5. Prevention and Therapy of Type 2 Diabetes-What Is the Potential of Daily Water Intake and Its Mineral Nutrients?

    PUBMED • 2017 • Human evidence curation set

    PMID 28829398 from Nutrients.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    6. Water intake and risk of type 2 diabetes: A systematic review and meta-analysis of observational studies.

    PUBMED • 2021 • Human evidence curation set

    PMID 34186361 from Diabetes Metab Syndr.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    7. Water Intake and Adiposity Outcomes among Overweight and Obese Individuals: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

    PUBMED • 2024 • Human evidence curation set

    PMID 38612997 from Nutrients.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    8. Effect of Increased Daily Water Intake and Hydration on Health in Japanese Adults.

    PUBMED • 2020 • Human evidence curation set

    PMID 32340375 from Nutrients.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    9. Effect of Increased Daily Water Intake in Premenopausal Women With Recurrent Urinary Tract Infections: A Randomized Clinical Trial.

    PUBMED • 2018 • Human evidence curation set

    PMID 30285042 from JAMA Intern Med.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    10. The effects of 6-month hydrogen-rich water intake on molecular and phenotypic biomarkers of aging in older adults aged 70 years and over: A randomized controlled pilot trial.

    PUBMED • 2021 • Human evidence curation set

    PMID 34601077 from Exp Gerontol.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    11. Early Coaching to Increase Water Intake in CKD.

    PUBMED • 2020 • Human evidence curation set

    PMID 33780940 from Ann Nutr Metab.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    12. A choice architecture intervention targeting school meals and water frequency intake: A school-based randomized trial.

    PUBMED • 2024 • Human evidence curation set

    PMID 37977257 from Appetite.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    13. Prescribed Water Intake in Autosomal Dominant Polycystic Kidney Disease.

    PUBMED • 2022 • Human evidence curation set

    PMID 38319283 from NEJM Evid.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    14. Effects of Mindful Eating in Patients with Obesity and Binge Eating Disorder.

    PUBMED • 2024 • Human evidence curation set

    PMID 38542795 from Nutrients.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    15. [The importance of water consumption in health and disease prevention: the current situation].

    PUBMED • 2020 • Human evidence curation set

    PMID 32960634 from Nutr Hosp.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    16. Detection of various microplastics in placentas, meconium, infant feces, breastmilk and infant formula: A pilot prospective study.

    PUBMED • 2023 • Human evidence curation set

    PMID 36108868 from Sci Total Environ.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source
    17. The association between domestic water hardness and kidney stone disease: a prospective cohort study from the UK Biobank.

    PUBMED • 2025 • Human evidence curation set

    PMID 39784501 from Int J Surg.

    Outcome: See linked PubMed abstract for methods and outcomes.[2844,3116,3535, etc.]

    Open source