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MyProtein

Impact Protein Bar (Peanut Butter)

Peanut Butter · Soya Protein Isolate, Milk Proteins, Whey Protein Concentrate (Milk), Hydrolysed Whey Protein (Milk), Calcium Caseinate (Milk), Milk Protein Concentrate · 64g serving

#126in Protein Bar(433)
1/3
XRay Score
66/100
Performance
P/kcal$P:F▾ CFb
At-a-Glance
20g
Protein /serving
6.5g
Fiber /serving
235
kcal /serving
8.5g
Protein /100kcal
Performance
ProteinEfficiencyValue forMoneyLeannessLow CarbFiber
Where to Buy
Myprotein InternationalBest value
12 x 64g Box · 12 servings
US$2.56/serving(approx.)
US$30.75 for pack
Buy Now
Check retailer for shipping
🇺🇸 Prices in USD
View more buying options

XRay Summary

  • Ranks #126 of 433 · XRay Score 66/100
  • Strength: Value For Money (Top 22%)
  • Protein Source: Milk Blend
  • Flavor: Nutty

Impact Protein Bar (Peanut Butter) by MyProtein holds a solid ranking in the protein bar category with an XRay Score of 66/100, placing #126 out of 433. Its strongest dimension is value for money (top 22%), standing out on cost-effectiveness. The protein comes from a milk protein blend, combining the benefits of both whey and casein. On the flavor front, expect nutty tones.

How It Ranks

Ranked against 433 products in this category.

XRay Score5D weighted score across all dimensions
#126 of 433
66/100XRay Score
Protein Efficiencygrams of protein per 100 kcal — higher is better
#174 of 433
8.5g/100kcal20.0g/serving60th percentile
Value for Moneygrams of protein per unit of currency — higher is better
#91 of 401
7.81 g/US$78th percentile
Leannessprotein-to-fat ratio — higher is better
#154 of 419
2.3:163rd percentile
Low Carbnet carbs per 100g — lower is better
#115 of 379
22.6g/100g14.5g/serving70th percentile
Fiberfiber per 100g — higher is better
#181 of 366
10.2g/100g6.5g/serving51st percentile

Leaderboard

XRay Score — Protein Bar (433 products)

RankProductProtein Eff.g/100kcalScore/100
#1
David Protein Bar, Cake Batter
David Protein Bar, Cake Batter
David
18.7g/100kcal97
···
#124
Smart Protein Bar (Birthday Cake)
Smart Protein Bar (Birthday Cake)
PhD
7.7g/100kcal66
#125
Protein Bar (Mint Chocolate Crisp)
Protein Bar (Mint Chocolate Crisp)
Barebells
9.5g/100kcal66
#126
Impact Protein Bar (Peanut Butter)
Impact Protein Bar (Peanut Butter)
MyProtein
8.5g/100kcal66
#127
Per4m Dubai Chocolate Flavour Protein Bar
Per4m Dubai Chocolate Flavour Protein Bar
Per4m
10.0g/100kcal66
#128
THE Re-Fuel Protein Bar (Salted Caramel)
THE Re-Fuel Protein Bar (Salted Caramel)
MyProtein
7.8g/100kcal66
—
THE Re-Fuel Protein Bar (Vanilla)
THE Re-Fuel Protein Bar (Vanilla)
MyProtein
7.8g/100kcal66
See all 433 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=433)
Learn more about our methodology →

Macro Split

235kcal/serving
Protein
33%
Fat
33%
Carbs
34%

Nutrition

Macronutrient breakdown and product details.

NutrientPer Serving (64g)Per 100g
Energy235kcal367.19kcal
Protein20g31.25g
Total Fat8.8g13.75g
Sat. Fat3.6g5.62g
Carbohydrates21g32.81g
Fiber6.5g10.16g
Sugar2.3g3.59g
Sodium112mg175mg

Shop

Best prices across retailers — shown in your selected currency.

ProductRetailerPricePer ServingShips to
12 x 64g Box768g · 12 sv
Best Value
Myprotein International
AD, AL + 57 more
£22.99
£1.92/sv
Buy Now
12 x 64g Box768g · 12 servings
Myprotein International
Best Value
£22.99
US$30.75
£1.92/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.

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

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MyProtein Impact Protein Bar (Peanut Butter)
MyProteinImpact Protein Bar (Peanut Butter)Protein Bar · Nutty · Milk Blend · #126 of 433 Protein Bars
XRay Score
66/100
Weighted across
5 dimensions
Protein Efficiency8.5 g/100kcalValue for Money7.8 g/$Leanness2.3:1 P:FLow Carb22.6g net/100gFiber10.2 g/100g
This productProtein Bar avg
Nutrition
/ serving 64g/ 100g
Calories235 kcal367 kcal
Protein20g31g
Fat8.8g14g
Carbs (total)21g33g
Fiber6.5g10g
Sugar2.3g3.6g
Macro Split
235kcal/svg
Protein
33%
Fat
33%
Carbs
34%
Protein Bar Rankings
Value
Rank
Protein Efficiency
8.5 g/100kcal
#174/433
Value for Money
7.8 g/$
#91/401
Leanness
2.3:1 P:F
#154/419
Low Carb
22.6g net/100g
#115/379
Fiber
10.2 g/100g
#181/366
MacroXray logoMACROXRAY
Generated on Jun 11, 2026 bymacroxray.com
YOUR PROTEIN.YOUR RULES. RANKED.
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