MACROXRAY
Products
OptimizeCraveBenchmark
HomeProductsProtein PowderSerious Mass™, Chocolate Peanut Butter
← Back to Protein Powder
Optimum Nutrition

Serious Mass™, Chocolate Peanut Butter

Chocolate peanut butter · Whey Protein Concentrate · 340g serving

#235in Protein Powder(244)
Creatine✓ Vegetarian✓ Sugar-Free
1/2
XRay Score
8/100
Performance
P/kcal$P:F▾ CFb
At-a-Glance
50g
Protein /serving
4g
Fiber /serving
1250
kcal /serving
4.0g
Protein /100kcal
Performance
ProteinEfficiencyValue forMoneyLeannessLow CarbFiber
Where to Buy
iHerbBest value
6 lb · 8 servings
US$7.12/serving
US$56.99 for pack
Buy Now
Ships Worldwide
🇺🇸 Prices in USD
View more buying options

XRay Summary

  • Ranks #235 of 244 · XRay Score 8/100
  • Weakness: Low Carb (Bottom 98%)
  • Protein Source: Whey Concentrate
  • Flavor: Chocolate And Nutty

Serious Mass™, Chocolate Peanut Butter by Optimum Nutrition scores below most products in its category in the protein powder category with an XRay Score of 8/100, placing #235 out of 244. On the flip side, net carbs are on the higher end (bottom 98% of the category). It's built on whey concentrate, a widely used and cost-effective protein source. It comes in a chocolate and nutty flavor profile.

How It Ranks

Ranked against 244 products in this category.

XRay Score5D weighted score across all dimensions
#235 of 244
8/100XRay Score
Protein Efficiencygrams of protein per 100 kcal — higher is better
#235 of 244
4.0g/100kcal50.0g/serving4th percentile
Value for Moneygrams of protein per unit of currency — higher is better
#167 of 182
7.02 g/US$8th percentile
Leannessprotein-to-fat ratio — higher is better
#171 of 219
8.4:122nd percentile
Low Carbnet carbs per 100g — lower is better
#131 of 134
72.3g/100g246.0g/serving2nd percentile
Fiberfiber per 100g — higher is better
#72 of 75
1.2g/100g4.0g/serving4th percentile

Leaderboard

XRay Score — Protein Powder (244 products)

RankProductProtein Eff.g/100kcalScore/100
#1
Impact Vegan Protein (Unflavoured)
Impact Vegan Protein (Unflavoured)
MyVegan
23.3g/100kcal96
···
#233
Total Soy®, Meal Replacement, Strawberry Cream
Total Soy®, Meal Replacement, Strawberry Cream
Naturade
8.7g/100kcal11
#234
Sport, ALLMASS™, Advanced Muscle Gainer, Chocolate
Sport, ALLMASS™, Advanced Muscle Gainer, Chocolate
ALLMAX
3.3g/100kcal9
#235
Serious Mass™, Chocolate Peanut Butter
Serious Mass™, Chocolate Peanut Butter
Optimum Nutrition
4.0g/100kcal8
#236
Serious Mass™, Chocolate
Serious Mass™, Chocolate
Optimum Nutrition
4.0g/100kcal8
#237
Origin Cream of Rice (Chocolate Fudge)
Origin Cream of Rice (Chocolate Fudge)
MyProtein
1.8g/100kcal6
See all 244 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=244)
Learn more about our methodology →

Macro Split

1250kcal/serving
Protein
16%
Fat
4%
Carbs
80%

Nutrition

Macronutrient breakdown and product details.

NutrientPer Serving (340g)Per 100g
Energy1250kcal367.65kcal
Protein50g14.71g
Total Fat6g1.76g
Sat. Fat3.5g1.03g
Carbohydrates250g73.53g
Fiber4g1.18g
Sugar31g9.12g
Sodium820mg241.18mg

Shop

Best prices across retailers — shown in your selected currency.

ProductRetailerPricePer ServingShips to
6 lb2720g · 8 sv
Best Value
iHerb
Worldwide
US$56.99
US$7.12/sv
Buy Now
6 lb2720g · 8 servings
iHerb
Best Value
US$56.99
US$7.12/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.

Product

  • Optimize
  • Crave
  • Benchmark
  • Products
  • Articles
  • Brands

Categories

  • Protein Powder
  • Clear Protein
  • RTD Shake
  • Protein Bar
  • Protein Crisps
  • Sweet Snack
  • Savoury Snack
  • Smoothie
  • Cooking Mix
  • Fresh & Chilled
  • Other

Company

  • About
  • Methodology
  • FAQ
  • Affiliate Disclosure
  • Privacy Policy
  • Terms of Service
  • Contact Us
© 2026 MacroXray. All rights reserved.
Text size
Some links are affiliate links. Affiliate disclosure
Buy Now