Onnit Review 2026: Review
It's actually fine. — Legitimate
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"Builds muscle and supports strength gains"
Creatine monohydrate at 5g/day increases muscle creatine phosphate stores and improves sprint power and strength in clinical trials.
PubMed: Creatine Monohydrate meta-analysis (Kreider et al 2017) -
"Brain cellular energy support"
Early evidence suggests modest cognitive benefits; effects are inconsistent in healthy adults and require further research.
PubMed: Creatine cognitive review (Winblad 2005) -
"Premium brand pricing justified by superior quality"
Onnit charges $0.42/serving; generic creatine monohydrate costs $0.15-0.18/serving. Same active ingredient, same efficacy.
Claims vs Evidence
MODEST2 of 4 claims supported by evidence.
"Build muscle & aid body composition goals"
Supported
Creatine increases strength and power; muscle growth requires training and adequate protein.
Based on: Creatine Monohydrate
"Promotes explosive strength and power"
Supported
Clinical trials confirm improved sprint capacity and peak power output in athletes.
Based on: Creatine Monohydrate
"Supports muscle recovery during workouts"
Partial
Creatine speeds ATP regeneration; recovery benefits are modest and require adequate sleep/nutrition.
Based on: Creatine Monohydrate
"Supports brain cellular energy"
Partial
Early evidence suggests cognitive benefits; effects are small and inconsistent in healthy adults.
Based on: Creatine Monohydrate
2 supported · 2 partial
Ingredients
Based on peer-reviewed research from PubMed and Examine.com
The most researched sports supplement. Reliably boosts strength, power, and recovery. Emerging mental health benefits.
Research-backed dose: 3-5 g/day maintenance; 0.3 g/kg/day loading phase (typically 5-7 days)
In this product: 5g per serving (1 scoop)
Price & Value
Extreme MarkupOnnit
$37.99
Optimum Nutrition Creatine Monohydrate or Bulk Supplements Creatine Monohydrate
~$15-18 for 100 servings (5g/serving) = $0.15-0.18/serving
Signals
- Shows actual ingredient doses
Research sources: PubMed · Examine.com
Analyzed product: https://onnit.com/products/creatine-unflavored-90-serving-tub
Analysis generated: 2026-05-02 · Engine v1.0.0