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RXBAR

Protein Bar, Peanut Butter

Peanut butter · Egg White · 52g serving

#359in Protein Bar(433)
✓ Gluten-Free✓ Vegetarian✓ Kosher✓ Sugar-Free
1/3
XRay Score
30/100
Performance
P/kcal$P:F▾ CFb
At-a-Glance
12g
Protein /serving
4g
Fiber /serving
190
kcal /serving
6.3g
Protein /100kcal
Performance
ProteinEfficiencyValue forMoneyLeannessLow CarbFiber
Where to Buy
iHerbBest value
12 count
US$31.09 for pack
Buy Now
Ships Worldwide
🇺🇸 Prices in USD
View more buying options

XRay Summary

  • Ranks #359 of 433 · XRay Score 30/100
  • Weakness: Low Carb (Bottom 84%)
  • Protein Source: Egg White
  • Flavor: Nutty
  • Dietary: Kosher Certified And Gluten-Free

Protein Bar, Peanut Butter by RXBAR has room for improvement overall in the protein bar category with an XRay Score of 30/100, placing #359 out of 433. On the flip side, this isn't the best pick for strict low-carb diets (bottom 84% of the category). It's built on egg white protein, one of the most bioavailable protein sources available. Flavor-wise, it features nutty notes. Notably, as stated, this product is Kosher certified and gluten-free.

How It Ranks

Ranked against 433 products in this category.

XRay Score5D weighted score across all dimensions
#359 of 433
30/100XRay Score
Protein Efficiencygrams of protein per 100 kcal — higher is better
#317 of 433
6.3g/100kcal12.0g/serving27th percentile
Value for Moneygrams of protein per unit of currency — higher is better
No data
——
Leannessprotein-to-fat ratio — higher is better
#253 of 419
1.7:140th percentile
Low Carbnet carbs per 100g — lower is better
#319 of 379
38.5g/100g20.0g/serving16th percentile
Fiberfiber per 100g — higher is better
#231 of 366
7.7g/100g4.0g/serving37th 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
···
#357
The Myprotein Bar (Hazelnut Wafer)
The Myprotein Bar (Hazelnut Wafer)
MyProtein
6.1g/100kcal30
#358
Organic Protein Bars (Kona)
Organic Protein Bars (Kona)
Aloha
6.1g/100kcal30
#359
Protein Bar, Peanut Butter
Protein Bar, Peanut Butter
RXBAR
6.3g/100kcal30
#360
Organic Protein Mini Bars, Chocolate Caramel Pecan
Organic Protein Mini Bars, Chocolate Caramel Pecan
Aloha
6.0g/100kcal28
#361
Snack, Peanutty Overload Bar
Snack, Peanutty Overload Bar
Atkins
4.7g/100kcal28
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

190kcal/serving
Protein
23%
Fat
30%
Carbs
47%

Nutrition

Macronutrient breakdown and product details.

NutrientPer Serving (52g)Per 100g
Energy190kcal365.38kcal
Protein12g23.08g
Total Fat7g13.46g
Sat. Fat1g1.92g
Carbohydrates24g46.15g
Fiber4g7.69g
Sugar17g32.69g
Sodium300mg576.92mg

Shop

Best prices across retailers — shown in your selected currency.

ProductRetailerPricePer ServingShips to
12 count
iHerb
Worldwide
US$31.09
—
Buy Now
12 count
iHerb
US$31.09
—
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.

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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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RXBAR Protein Bar, Peanut Butter
RXBARProtein Bar, Peanut ButterProtein Bar · Nutty · Egg White · #359 of 433 Protein Bars
Gluten-FreeVegetarianKosherSugar-Free
XRay Score
30/100
Weighted across
5 dimensions
Protein Efficiency6.3 g/100kcalValue for Money—Leanness1.7:1 P:FLow Carb38.5g net/100gFiber7.7 g/100g
This productProtein Bar avg
Nutrition
/ serving 52g/ 100g
Calories190 kcal365 kcal
Protein12g23g
Fat7.0g13g
Carbs (total)24g46g
Fiber4.0g7.7g
Sugar17g33g
Macro Split
190kcal/svg
Protein
23%
Fat
30%
Carbs
47%
Protein Bar Rankings
Value
Rank
Protein Efficiency
6.3 g/100kcal
#317/433
Value for Money
—
—
Leanness
1.7:1 P:F
#253/419
Low Carb
38.5g net/100g
#319/379
Fiber
7.7 g/100g
#231/366
MacroXray logoMACROXRAY
Generated on Jun 11, 2026 bymacroxray.com
YOUR PROTEIN.YOUR RULES. RANKED.
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