Last verified: today
Electrolyte Powder (PEG-Based)
Also known as: polyethylene glycol electrolyte solution, PEG-ELS, PEG 3350 electrolyte, GoLYTELY, MiraLAX electrolyte blend
Evidence under review. — Not yet rated
PEG-based electrolyte powder used medically for bowel prep; limited consumer supplement research available.
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What it does
PEG-based electrolyte powder combines polyethylene glycol — an osmotic agent that draws water into the bowel — with electrolytes like sodium, potassium, and chloride to prevent dehydration. It is...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
No established dose from provided studies
What the Science Says
PEG-based electrolyte powder combines polyethylene glycol — an osmotic agent that draws water into the bowel — with electrolytes like sodium, potassium, and chloride to prevent dehydration. It is most recognized as a prescription or OTC bowel-cleansing preparation used before colonoscopies or to treat severe constipation. As a consumer supplement ingredient, it is marketed for hydration and electrolyte replenishment, though no published clinical trials were available to confirm these specific uses.
What It Doesn't Do
Not a sports hydration drink — it was designed for medical bowel prep, not athletic performance. Won't enhance endurance or replace sweat losses the way purpose-built sports electrolytes do. No evidence it improves energy levels. Not a substitute for a balanced diet or medical treatment for chronic dehydration.
Absorption & Bioavailability
Unknown for supplement use. PEG itself is largely non-absorbed; electrolytes (sodium, potassium, chloride) are well absorbed in the gut under normal conditions.
Red Flags to Watch For
- PEG-based formulas are primarily medical-grade bowel prep agents — using them as everyday supplements is off-label and unsupported by consumer research
- High doses can cause severe electrolyte imbalances, nausea, vomiting, and dangerous fluid shifts — especially in people with kidney or heart conditions
- Products marketed as 'PEG electrolyte powder' supplements may be mislabeled or misrepresented; verify intended use before purchasing
- No published clinical trials support its use as a general hydration or fitness supplement — the 1,000 registered products in DSLD do not equal clinical evidence
- Should not be used by children, pregnant women, or people with bowel obstructions without direct medical supervision
Research Sources
- General knowledge — no published research papers were provided for this ingredient
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25