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Hydration

Glycerol (Hyperhydration)

Also known as: Glycerin, GlycerPump

B
Evidence

Osmotic agent that helps retain water for enhanced hydration. Used by endurance athletes.

Primary uses

  • Hyperhydration
  • Endurance performance
  • Heat tolerance

How it works

  • Osmotic water retention
  • Delays dehydration
  • Improves thermoregulation

Dosage

Typical range
1-2g/kg body weight (pre-event)
Timing
1-2 hours before event with water
With food
With lots of water
Duration
Event-specific use
Special populations
Endurance athletes, hot conditions

Forms

  • Powder
  • Liquid

Safety

Common side effects

  • Bloating
  • GI upset
  • Headache

Contraindications

  • Kidney disease
  • Diabetes

Evidence notes

Endurance athlete hydration

Grade B: Some human trials support key claims; further confirmation needed.

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.