When it comes to hydration, not all electrolyte drinks are created equal. Pedialyte and Ultima Replenisher are two of the most popular options—but they serve very different purposes.

This guide breaks down everything you need to know: ingredients, electrolyte profiles, use cases, taste, price, and who should choose which.

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Quick Comparison Table

Feature	Pedialyte	Ultima Replenisher
Best For	Rapid rehydration during illness or heavy fluid loss	Daily hydration, low-sugar lifestyles, athletes
Sodium	~1,080 mg per liter (clinical strength)	~55 mg per stick (low-sodium)
Potassium	~780 mg per liter	~250–325 mg per stick
Magnesium	Not typically included	60–100 mg per stick
Sugar	13g (classic); 0g (Zero Sugar versions)	0g (stevia-sweetened)
Calories	~30–50 per serving (varies)	0 calories
Price/Serving	~$0.79	~$0.53
Flavors	Fruit Punch, Strawberry, Grape, Unflavored, etc.	Lemonade, Blue Raspberry, Grape, Cherry, etc.
Format	Ready-to-drink bottles, powder packs	Powder stick packs, tubs

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What Is Pedialyte?

Pedialyte is a medically formulated oral electrolyte solution originally designed for children recovering from dehydration due to vomiting, diarrhea, or fever. It’s now widely used by adults too—especially during illness, hangovers, or intense heat exposure.shop.lowesfoods+1

Key Ingredients (Classic Formula)

• Water
• Dextrose (glucose)
• Sodium chloride & sodium citrate
• Potassium citrate
• Citric acid
• Zinc gluconate (in some versions)
• Artificial flavors & colors (in non-organic versions)

Why It Works

Pedialyte uses a glucose-electrolyte solution that enhances water absorption in the intestines—mimicking the WHO-recommended Oral Rehydration Solution (ORS) formula. This makes it extremely effective for rapid rehydration when your body is in crisis.

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What Is Ultima Replenisher?

Ultima Replenisher is a sugar-free, zero-calorie electrolyte drink mix designed for daily hydration, fitness recovery, and low-carb or keto lifestyles.

Key Ingredients

• Citric acid
• Magnesium citrate
• Potassium phosphate & potassium aspartate
• Calcium citrate & calcium lactate
• Sodium chloride (salt)
• Zinc citrate, manganese citrate
• Organic stevia leaf extract (Rebaudioside A)
• Natural fruit flavors

Why It Works

Ultima provides six essential electrolytes plus vitamin C and zinc, with no sugar or artificial sweeteners. It’s ideal for people who want clean, everyday hydration without spiking blood sugar or consuming unnecessary calories.

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Pedialyte vs. Ultima: Head-to-Head

1. Electrolyte Profile

• Pedialyte: High sodium (1,080 mg/L) + high potassium (780 mg/L). No magnesium.saltyhydration+1
• Ultima: Balanced but lower sodium (55 mg/stick), solid potassium (250–325 mg), plus magnesium (60–100 mg), calcium, chloride, and phosphorus.sugar

Winner:

• Illness/dehydration: Pedialyte
• Daily balance/fitness: Ultima

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2. Sugar & Calories

• Pedialyte: Classic has 13g sugar and ~30–50 calories per serving. Zero Sugar versions exist but may use sucralose/acesulfame-K.foodsco+2
• Ultima: 0g sugar, 0 calories, sweetened with organic stevia.

Winner: Ultima for low-sugar/keto diets.

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3. Taste & Mixability

• Pedialyte: Mild, slightly sweet, medical-grade taste. Some find it too “clinical.”
• Ultima: Fruity, refreshing flavors (Lemonade, Blue Raspberry, Grape). Mixes easily in water.

Winner: Ultima for everyday palatability.

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4. Price & Value

• Pedialyte: ~$0.79 per serving (liquid or powder).
• Ultima: ~$0.53 per stick pack.

Winner: Ultima for cost-effectiveness.

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5. Use Cases

Situation	Best Choice	Why
Vomiting/diarrhea	Pedialyte	Clinical ORS formula for rapid rehydration
Hangover recovery	Pedialyte	High sodium + glucose replenishes fluids fast
Daily hydration	Ultima	Low sodium, zero sugar, 6 electrolytes
Keto/low-carb diet	Ultima	No sugar, no calories
Endurance sports	Ultima (or Pedialyte Sport)	Balanced electrolytes without sugar crash
Kids’ hydration	Pedialyte	Pediatrician-recommended, safe for children

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Which Should You Buy?

Choose Pedialyte if:

• You’re recovering from illness, vomiting, or diarrhea
• You need fast, medical-grade rehydration
• You’re hydrifying a child (under doctor guidance)
• You don’t mind sugar or artificial ingredients

Choose Ultima Replenisher if:

• You want daily, low-sodium hydration
• You’re on keto, low-carb, or sugar-free diets
• You prefer clean, stevia-sweetened ingredients
• You’re an athlete or active adult needing balanced electrolytes

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Final Verdict

Pedialyte and Ultima aren’t competitors—they’re complements.

• Keep Pedialyte in your medicine cabinet for sickness, travel, or heavy dehydration.
• Stock Ultima in your gym bag or desk for daily hydration, workouts, and heat exposure.

Using both strategically ensures you’re always hydrated—whether you’re fighting a bug or crushing a workout.

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FAQs

Is Pedialyte better than Ultima for dehydration?

Yes—for acute dehydration (illness, hangover, heat exhaustion), Pedialyte’s high sodium + glucose formula rehydrates faster.

Can I drink Ultima every day?

Yes. Ultima is safe for daily use, with low sodium and no sugar.

Does Pedialyte have magnesium?

No. Classic Pedialyte does not contain magnesium. Ultima does (60–100 mg/serving).

Which tastes better?

Most users prefer Ultima for flavor variety and natural fruit taste. Pedialyte tastes more “medical.”