MACROXRAY
Products
OptimizeCraveBenchmark
HomeProductsProtein BarPeanut Butter Protein Bar
← Back to Protein Bar
MyProtein

Peanut Butter Protein Bar

Peanut Butter · Pea Protein Isolate, Peanut Flour · 38g serving

#196in Protein Bar(245)
✓ Vegan
1/2
XRay Score
30/100
Performance
P/kcal$P:F▾ CFb
At-a-Glance
8g
Protein /serving
7.6g
Fiber /serving
193
kcal /serving
4.1g
Protein /100kcal
Performance
ProteinEfficiencyValue forMoneyLeannessLow CarbFiber
Where to Buy
Myprotein InternationalBest value
12-Pack (12 x 38g) · 12 servings
US$1.95/serving(approx.)
US$23.41 for pack
Buy Now
Check retailer for shipping
🇺🇸 Prices in USD
View more buying options

XRay Summary

  • Ranks #196 of 245 · XRay Score 30/100
  • Strength: Fiber (Top 12%)
  • Weakness: Leanness (Bottom 94%)
  • Protein Source: Pea Protein
  • Dietary: Vegan

Peanut Butter Protein Bar by MyProtein falls below the category average in the protein bar category with an XRay Score of 30/100, placing #196 out of 245. Its strongest dimension is fiber (top 12%), providing meaningful fiber per serving. On the flip side, the fat-to-protein ratio is higher than average (bottom 94% of the category). It's powered by pea protein, a popular plant-based source with a strong amino acid profile. This product also is vegan.

How It Ranks

Ranked against 245 products in this category.

XRay Score5D weighted score across all dimensions
#196 of 245
30/100XRay Score
Protein Efficiencygrams of protein per 100 kcal — higher is better
#217 of 245
4.1g/100kcal8.0g/serving12th percentile
Value for Moneygrams of protein per unit of currency — higher is better
#195 of 228
4.10 g/US$15th percentile
Leannessprotein-to-fat ratio — higher is better
#226 of 240
0.8:16th percentile
Low Carbnet carbs per 100g — lower is better
#37 of 211
16.8g/100g6.4g/serving83rd percentile
Fiberfiber per 100g — higher is better
#27 of 223
20.0g/100g7.6g/serving88th percentile

Leaderboard

XRay Score — Protein Bar (245 products)

RankProductProtein Eff.g/100kcalScore/100
#1
Protein Bar, S'Mores
Protein Bar, S'Mores
Quest Nutrition
11.7g/100kcal91
···
#194
Toffee Crunch (Toffee)
Toffee Crunch (Toffee)
MyProtein
4.0g/100kcal30
—
Toffee Crunch (12-Bar)
Toffee Crunch (12-Bar)
MyProtein
4.0g/100kcal30
···
#196
Peanut Butter Protein Bar
Peanut Butter Protein Bar
MyProtein
4.1g/100kcal30
#197
Protein Bar, Peanut Butter & Jelly
Protein Bar, Peanut Butter & Jelly
Alani Nu
6.8g/100kcal30
#198
Protein Bar, Peanut Butter
Protein Bar, Peanut Butter
RXBAR
6.3g/100kcal29
See all 245 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 Bar(n=245)
Learn more about our methodology →

Macro Split

193kcal/serving
Protein
18%
Fat
51%
Carbs
31%

Nutrition

Macronutrient breakdown and product details.

NutrientPer Serving (38g)Per 100g
Energy193kcal507.89kcal
Protein8g21.05g
Total Fat10g26.32g
Sat. Fat4.9g12.89g
Carbohydrates14g36.84g
Fiber7.6g20g
Sugar3.3g8.68g
Sodium80mg210.53mg

Shop

Best prices across retailers — shown in your selected currency.

ProductRetailerPricePer ServingShips to
12-Pack (12 x 38g)456g · 12 sv
Best Value
Myprotein International
AD, AL + 57 more
£18.49
£1.54/sv
Buy Now
12-Pack (12 x 38g)456g · 12 servings
Myprotein International
Best Value
£18.49
US$23.41
£1.54/serving
AD, AL + 57 more
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