Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder
Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Chocolate Supreme, 2 Pound (Packaging May…
Price as of 2026-08-11. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$20–$28
- Mid-range:$28–$42
- Premium:$42+← You are here
Is This Right For You?
- •Buyers who prioritize quality over price in Protein Powder
- •Those who want a top-rated option — in the top 7% of Protein Powder by rating
- •Risk-averse buyers — 9,151+ reviews give a highly reliable picture
- •You're on a tight budget — $13 above the category average of $35
- •Isopure Zero Carb 100% Pure Whey Isolate Protein Powder — 49% cheaper at $24 (Score A)
📊 Based on data analysis of 15 products in this category.
Mubboo Score: B
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other Protein Powder
Computed from live Amazon rating, review count, and price across 15 Protein Powder available to US consumers · last refreshed 2026-08-11.
How It Compares
This Product Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder | Most Popular Optimum Nutrition Gold Standard 100% Whey Protein Powder | Best Rated Orgain Organic Vegan Protein + 50 Superfoods Powder | Best Value Isopure Zero Carb 100% Pure Whey Isolate Protein Powder | |
|---|---|---|---|---|
| Price | $47.30 | $29.26 | $34.15 | $24.23 |
| Rating | 4.6/5 | 4.6/5 | 4.6/5 | 4.5/5 |
| Reviews | 9,151 | 99,472 | 36,516 | 28,803 |
| Mubboo Score | B | A+ | A- | A |
What buyers say about Protein Powder
Themes from buyer reviews across this category — not review data for this specific model.
Use a shaker with a metal ball for smooth blending, especially with cold milk or water. Those with taste sensitivities or allergies should check flavor reviews and ingredient lists carefully.
- Clump-free mixability in various liquids
- Pleasant, not overly sweet flavor
- Digestive comfort with no bloating or stomach issues
- Clean, simple ingredients with organic or no-additive options
- Good value for the quality and serving size
- Chalky or artificial aftertaste in some plant-based powders
- Mixing difficulties with hot liquids or plastic blender balls
- Packaging flaws such as zippers that don't seal or scoops buried deep
Related Video Reviews
- 📹 How To Pick The Best Protein Powder (CHOOSE WISELY!) — Jeremy Ethier
- 📹 Protein Powder is a Waste of Money (DUMB!) — ATHLEAN-X™
- 📹 Best Protein Powders for Muscle & Longevity (+ Exact Dose & Timing Guide) — Quinn Stillson MD
Key Features
- ✦One 1.87 lb container (25 servings) of Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder in Chocolate Supreme flavor
- ✦With micellar casein, this Optimum Nutrition protein powder helps support muscle recovery
- ✦Each serving has 9 grams of naturally occurring Essential Amino Acids
- ✦Feel good about your after-workout recovery drink
- ✦Mixes easily with a shaker cup, perfect for packing in your gym bag as part of your training routine
Source: product listing on Amazon.
About Optimum Nutrition
- 11 products in our database
- Average rating: 4.5/5 across all products
- Price range: $14.68 – $55.94
- Categories: amino-acids, Creatine Supplements, Pre-Workout Supplements, Protein Powder
If not the Gold Standard 100% Micellar Casein Protein Powder, consider these
Featured in Our Reviews
Bottom Line
Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder earns Mubboo Score B. Priced at $47 — a premium option, above the category average of $35. Rated 4.6/5 from 9,151+ reviews. Strong buy if: buyers who prioritize quality over price in protein powder, those who want a top-rated option. Skip if: you're on a tight budget — Optimum Nutrition Gold Standard 100% Whey Protein Powder (Score A+, $29) may fit better.
Frequently Asked Questions
Is the Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder worth buying in 2026?
It earns a Mubboo Score of B, with a 4.6/5 rating from 9,151 reviews — better than 93% of Protein Powder we track.
How much does the Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder cost?
It is currently $47.30 — premium-tier pricing for Protein Powder.
How does the Gold Standard 100% Micellar Casein Protein Powder compare to other Protein Powder?
The category's most-reviewed alternative is the Optimum Nutrition Gold Standard 100% Whey Protein Powder (4.6/5, 99,472 reviews, $29.26). The Gold Standard 100% Micellar Casein Protein Powder carries a Mubboo Score of B vs A+.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-08-11) and may change.