Glycerol
A hyper-hydrating agent that can enhance endurance, and muscle pumps.
Also known as: Glycerine
Overview
Glycerol is a sugar alcohol that has the ability to draw water into cells, a property known as hyperhydration. This can lead to improved hydration, endurance, and the sought-after 'pump' effect during workouts. It is often used by athletes to improve performance and prevent dehydration.
Key Benefits
Enhances Hydration
Glycerol's osmotic properties help the body retain water, leading to a state of hyperhydration that can be beneficial for endurance athletes.
Improves Endurance
By improving hydration and regulating body temperature, glycerol can help to delay fatigue and improve endurance during prolonged exercise.
Increases Muscle Pumps
The increased water retention in muscle cells can lead to a fuller, more 'pumped' look and feel during workouts.
Dosage & How to Take
Glycerol dosage is typically based on body weight and should be consumed with a sufficient amount of water. It is important to start with a lower dose to assess tolerance.
| Purpose | Dose | Notes |
|---|---|---|
| Hyperhydration | 1-1.5g per kg of bodyweight | Mixed with 20-26 oz of water per gram of glycerol, consumed 60-90 minutes before exercise. |
| Muscle Pumps | 10-20g | Taken 30-60 minutes pre-workout with plenty of water. |
Best Time to Take
For optimal results, consume 30-60 minutes before your workout with a large volume of water.
With or Without Food
Can be taken with or without food.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Liquid | High | Pre-workout drinks | Easy to mix with water or other beverages. |
| Powder | High | Pre-workout formulas | Often included in pre-workout supplements. |
Side Effects & Safety
Common
- Headache
- Dizziness
- Nausea
- Bloating
Rare
- Excessive thirst
- Dehydration if not consumed with enough water
Contraindications
- Individuals with kidney problems or heart conditions should consult a healthcare professional before using glycerol.
Interactions
Glycerol's hydrating effects may be counteracted by diuretic medications.
Scientific Research
The Effect of Glycerol Supplements on Aerobic and Anaerobic Exercise Performance
Glycerol's osmoprotective solute quality can be used to improve physical endurance.
Hyperhydrating with glycerol: implications for athletic performance and hydration
Because of its osmotic properties, which enable greater fluid retention than the ingestion of water alone, glycerol has been proposed as a hyperhydrating agent.
Food Sources
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.