Gold Standard® Pro Gainer, Double Chocolate, 5.09 lb (2.31 kg)
Double chocolate · Whey Protein Concentrate, Whey Protein Isolate, Hydrolyzed Whey, Casein · 165g serving
XRay Summary
- Ranks #113 of 129 · XRay Score 19/100
- Weakness: Low Carb (Bottom 89%)
- Protein Source: Whey Isolate
- Flavor: Chocolate
Gold Standard® Pro Gainer, Double Chocolate, 5.09 lb (2.31 kg) by Optimum Nutrition scores below most products in its category in the protein powder category with an XRay Score of 19/100, placing #113 out of 129. On the flip side, this isn't the best pick for strict low-carb diets (bottom 89% of the category). It uses whey isolate as its protein base, a fast-absorbing source favored for its high purity and low lactose content. Flavor-wise, it features chocolate notes.
How It Ranks
Ranked against 129 products in this category.
Leaderboard
XRay Score — Protein Powder (129 products)

Performance
Visual comparison across the 5 dimensions and macronutrient split.
Radar
How this product compares on each dimension — overlaid on the category median (gray). Larger area is always better. Hover any label for raw values and formula.
Macro Split
Nutrition
Macronutrient breakdown and product details.
| Nutrient | Per Serving (165g) | Per 100g |
|---|---|---|
| Energy | 650kcal | 393.94kcal |
| Protein | 60g | 36.36g |
| Total Fat | 9g | 5.45g |
| Sat. Fat | 4g | 2.42g |
| Carbohydrates | 81g | 49.09g |
| Fiber | 5g | 3.03g |
| Sugar | 7g | 4.24g |
| Sodium | 340mg | 206.06mg |
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