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Optimum Nutrition

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

#113in Protein Powder(129)
✓ Vegetarian
1/2
XRay Score
19/100
Performance
P/kcal$P:F▾ CFb
At-a-Glance
60g
Protein /serving
5g
Fiber /serving
650
kcal /serving
9.2g
Protein /100kcal
Performance
ProteinEfficiencyValue forMoneyLeannessLow CarbFiber
Where to Buy
iHerbBest value
5.09 lb · 14 servings
US$6.33/serving
US$88.65 for pack
Buy Now
Ships Worldwide
🇺🇸 Prices in USD
View more buying options

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.

XRay Score5D weighted score across all dimensions
#113 of 129
19/100XRay Score
Protein Efficiencygrams of protein per 100 kcal — higher is better
#114 of 129
9.2g/100kcal60.0g/serving12th percentile
Value for Moneygrams of protein per unit of currency — higher is better
#46 of 61
9.48 g/US$25th percentile
Leannessprotein-to-fat ratio — higher is better
#109 of 124
6.7:112th percentile
Low Carbnet carbs per 100g — lower is better
#74 of 83
46.1g/100g76.0g/serving11th percentile
Fiberfiber per 100g — higher is better
#17 of 35
3.0g/100g5.0g/serving53rd percentile

Leaderboard

XRay Score — Protein Powder (129 products)

RankProductProtein Eff.g/100kcalScore/100
#1
ISO100® Hydrolyzed, 100% Whey Protein Isolate, Gourmet Vanilla, 5 lb (2.3 kg)
ISO100® Hydrolyzed, 100% Whey Protein Isolate, Gourmet Vanilla, 5 lb (2.3 kg)
Dymatize
22.7g/100kcal98
—
ISO100® Hydrolyzed, 100% Whey Protein Isolate, Fruity Pebbles, 3 lb (1.4 kg)
ISO100® Hydrolyzed, 100% Whey Protein Isolate, Fruity Pebbles, 3 lb (1.4 kg)
Dymatize
22.7g/100kcal98
···
#111
Total Soy®, Meal Replacement, Chocolate, 1.2 lb (540 g)
Total Soy®, Meal Replacement, Chocolate, 1.2 lb (540 g)
Naturade
10.0g/100kcal22
#112
Total Soy, Weight Loss Shake, Horchata, 1.2 lbs (540 g)
Total Soy, Weight Loss Shake, Horchata, 1.2 lbs (540 g)
Naturade
9.3g/100kcal22
#113
Gold Standard® Pro Gainer, Double Chocolate, 5.09 lb (2.31 kg)
Gold Standard® Pro Gainer, Double Chocolate, 5.09 lb (2.31 kg)
Optimum Nutrition
9.2g/100kcal19
#114
Total Soy®, Meal Replacement, Bavarian Chocolate, 1 lb 1.88 oz (507 g)
Total Soy®, Meal Replacement, Bavarian Chocolate, 1 lb 1.88 oz (507 g)
Naturade
8.7g/100kcal19
#115
Total Soy®, Meal Replacement, Vanilla, 1.2 lb (540 g)
Total Soy®, Meal Replacement, Vanilla, 1.2 lb (540 g)
Naturade
10.0g/100kcal16
See all 129 ranked →

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.

ProteinEfficiencyValue forMoneyLeannessLow CarbFiber
This productAverage Protein Powder(n=129)
Learn more about our methodology →

Macro Split

650kcal/serving
Protein
37%
Fat
13%
Carbs
50%

Nutrition

Macronutrient breakdown and product details.

NutrientPer Serving (165g)Per 100g
Energy650kcal393.94kcal
Protein60g36.36g
Total Fat9g5.45g
Sat. Fat4g2.42g
Carbohydrates81g49.09g
Fiber5g3.03g
Sugar7g4.24g
Sodium340mg206.06mg

Shop

Best prices across retailers — shown in your selected currency.

ProductRetailerPricePer ServingShips to
5.09 lb2310g · 14 sv
Best Value
iHerb
Worldwide
US$88.65
US$6.33/sv
Buy Now
5.09 lb2310g · 14 servings
iHerb
Best Value
US$88.65
US$6.33/serving
Worldwide
Buy
Prices shown in each retailer's original currency. Shipping availability and delivery to your country depend on the retailer.

Disclaimer — All nutritional data and product information is provided to the best of our knowledge based on publicly available sources and may contain inaccuracies. MacroXray is not responsible for discrepancies between listed and actual product data. Nothing on this site constitutes medical, dietary, or nutritional advice. Always consult a qualified healthcare professional before making changes to your diet. Dietary restriction labels (e.g. gluten-free, vegan) are based on ingredient information and may not account for cross-contamination or manufacturing processes — always verify with the manufacturer if you have allergies or intolerances. Halal, Kosher and other certifications shown are based on product labeling or third party site descriptions; actual certification status may vary by region and should be confirmed with the certifying body or manufacturer. Prices shown are sourced from third-party retailers at the time of last scan and may have changed since then. MacroXray is not a retailer and does not sell products directly.

MACROXRAY

Your Protein. Your Rules. Ranked. We rank based on published nutrition data — no sponsored rankings, no mystery grades. Just numbers.

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