Hydration Protocol
Systematic hydration: half your bodyweight (lbs) in ounces daily, plus electrolytes for active individuals. Even mild dehydration impairs cognition and performance.
Dosage & Timing
Evidence Strength
4/5 — StrongStrong evidence that even mild dehydration (1-2% body weight loss) impairs cognitive and physical performance.
Overview
Drink adequate water throughout the day: roughly half your body weight (lbs) in ounces, plus additional for exercise and heat. Add electrolytes (sodium, potassium, magnesium) for active individuals, especially on low-carb diets.
How To Do It
Calculate baseline
Body weight in lbs ÷ 2 = ounces of water per day. Example: 180 lbs → 90 oz.
Front-load morning hydration
Drink 16-24 oz within first hour of waking.
Add electrolytes if active
Add a pinch of salt and potassium to water, or use an electrolyte mix (LMNT, etc.).
Monitor urine color
Aim for pale straw color. Clear = overhydrated. Dark = dehydrated.
The Evidence
Each claim is linked to its source study. Confidence reflects the study design — systematic reviews and RCTs rank highest.
Mild dehydration affects mood in healthy young women↗
Mild dehydration impaired mood and increased fatigue-related symptoms.
Primary Literature
Who Popularized This
Interactions & Warnings
Contraindications
- ⚠Heart failure or kidney conditions (follow physician guidance on fluid restriction)
Interactions
- •Electrolytes important when combined with fasting or low-carb diets
Measurable Outcomes
Equipment Needed
- • Water bottle
Related Protocols
Protein Target (1.6-2.2g/kg)
Hit 1.6-2.2g protein per kg bodyweight daily across 3-5 meals. The single most important nutritional target for muscle preservation, satiety, and healthy aging.
Fiber Target (30-50g/day)
Aim for 30-50g fiber daily from diverse plant sources. Feeds gut microbiome, improves metabolic health, and is strongly linked to lower mortality risk.
Omega-3 Intake (EPA+DHA)
Get 2-4g EPA+DHA daily through fatty fish or supplements. Critical for inflammation management, brain health, and cardiovascular protection.
Fermented Foods for Gut Health
2-3 servings of fermented foods daily to boost gut microbiome diversity. Stanford research showed this increased microbial diversity and reduced inflammatory markers.