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 2026-06-03. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Those who want a top-rated option — in the top 11% of Protein Powder by rating
- •Risk-averse buyers — 9,088+ reviews give a highly reliable picture
- •Orgain Organic Vegan Protein + 50 Superfoods Powder — 59% cheaper at $19 (Score A)
- •BSN SYNTHA-6 Whey Protein Powder — higher rated at 4.7/5 ($60)
📊 Based on data analysis of 66 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 66 Protein Powder · last refreshed 2026-06-03.
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 BSN SYNTHA-6 Whey Protein Powder | Best Value Orgain Organic Vegan Protein + 50 Superfoods Powder | |
|---|---|---|---|---|
| Price | $47.30 | $42.38 | $59.99 | $19.19 |
| Rating | 4.6/5 | 4.6/5 | 4.7/5 | 4.4/5 |
| Reviews | 9,088 | 98,676 | 9,694 | 6,154 |
| Mubboo Score | B+ | A | B+ | A |
What People Say
Synthesized from 40 reviews · 100% verified purchases.
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
- 17 products in our database
- Average rating: 4.5/5 across all products
- Price range: $16 – $47.30
- Categories: Creatine Supplements, Meal Replacement Shakes, Pre-Workout Supplements, Protein Powder, Vitamin D Supplements
Other Protein Powder
Bottom Line
Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder earns Mubboo Score B+. Priced at $47 — a mid-range option, above the category average of $47. Rated 4.6/5 from 9,088+ reviews. Strong buy if: those who want a top-rated option, risk-averse buyers.
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 9,088 reviews — better than 89% of Protein Powder we track.
How much does the Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder cost?
It is currently $47.30 — mid-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, 98,676 reviews, $42.38). The Gold Standard 100% Micellar Casein Protein Powder carries a Mubboo Score of B+ vs A.
Sources & References
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 (2026-06-03) and may change.