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MET-Rx

Big 100, Meal Replacement Bar, Peanut Butter Pretzel

Peanut butter pretzel · Whey Protein Concentrate, Whey Protein Isolate, Hydrolyzed Whey, Casein, Egg White, Soy Protein · 100g serving

#243in Protein Bar(433)
✓ Vegetarian
1/3
XRay Score
45/100
Performance
P/kcal$P:F▾ CFb
At-a-Glance
30g
Protein /serving
3g
Fiber /serving
410
kcal /serving
7.3g
Protein /100kcal
Performance
ProteinEfficiencyValue forMoneyLeannessLow CarbFiber
Where to Buy
iHerbBest value
9 count · 9 servings
US$4.20/serving
US$37.83 for pack
Buy Now
Ships Worldwide
🇺🇸 Prices in USD
View more buying options

XRay Summary

  • Ranks #243 of 433 · XRay Score 45/100
  • Strength: Leanness (Top 30%)
  • Weakness: Low Carb (Bottom 93%)
  • Protein Source: Whey Isolate
  • Flavor: Nutty

Big 100, Meal Replacement Bar, Peanut Butter Pretzel by MET-Rx scores around the category average in the protein bar category with an XRay Score of 45/100, placing #243 out of 433. Its strongest dimension is leanness (top 30%), keeping fat content low relative to protein. On the flip side, net carbs are on the higher end (bottom 93% of the category). It uses whey isolate as its protein base, a fast-absorbing source favored for its high purity and low lactose content. On the flavor front, expect nutty tones.

How It Ranks

Ranked against 433 products in this category.

XRay Score5D weighted score across all dimensions
#243 of 433
45/100XRay Score
Protein Efficiencygrams of protein per 100 kcal — higher is better
#248 of 433
7.3g/100kcal30.0g/serving43rd percentile
Value for Moneygrams of protein per unit of currency — higher is better
#149 of 401
7.14 g/US$63rd percentile
Leannessprotein-to-fat ratio — higher is better
#128 of 419
2.5:170th percentile
Low Carbnet carbs per 100g — lower is better
#352 of 379
44.0g/100g44.0g/serving7th percentile
Fiberfiber per 100g — higher is better
#324 of 366
3.0g/100g3.0g/serving12th 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
···
#241
Crunch Protein Bar (Dark Chocolate & Peanut Butter)
Crunch Protein Bar (Dark Chocolate & Peanut Butter)
Warrior
8.6g/100kcal45
#242
Plant Protein Bar, Banana Nut
Plant Protein Bar, Banana Nut
IQBAR
7.1g/100kcal45
#243
Big 100, Meal Replacement Bar, Peanut Butter Pretzel
Big 100, Meal Replacement Bar, Peanut Butter Pretzel
MET-Rx
7.3g/100kcal45
#244
Protein Bar, Rocky Road
Protein Bar, Rocky Road
Alani Nu
8.5g/100kcal44
#245
Crunch Protein Bar (Cookies And Cream)
Crunch Protein Bar (Cookies And Cream)
Warrior
8.4g/100kcal44
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

410kcal/serving
Protein
29%
Fat
26%
Carbs
45%

Nutrition

Macronutrient breakdown and product details.

NutrientPer Serving (100g)Per 100g
Energy410kcal410kcal
Protein30g30g
Total Fat12g12g
Sat. Fat6g6g
Carbohydrates47g47g
Fiber3g3g
Sugar28g28g
Sodium500mg500mg

Shop

Best prices across retailers — shown in your selected currency.

ProductRetailerPricePer ServingShips to
9 count900g · 9 sv
Best Value
iHerb
Worldwide
US$37.83
US$4.20/sv
Buy Now
9 count900g · 9 servings
iHerb
Best Value
US$37.83
US$4.20/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.

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MET-Rx Big 100, Meal Replacement Bar, Peanut Butter Pretzel
MET-RxBig 100, Meal Replacement Bar, Peanut Butter PretzelProtein Bar · Nutty · Whey Isolate · #243 of 433 Protein Bars
Vegetarian
XRay Score
45/100
Weighted across
5 dimensions
Protein Efficiency7.3 g/100kcalValue for Money7.1 g/$Leanness2.5:1 P:FLow Carb44.0g net/100gFiber3.0 g/100g
This productProtein Bar avg
Nutrition
/ serving 100g/ 100g
Calories410 kcal410 kcal
Protein30g30g
Fat12g12g
Carbs (total)47g47g
Fiber3.0g3.0g
Sugar28g28g
Macro Split
410kcal/svg
Protein
29%
Fat
26%
Carbs
45%
Protein Bar Rankings
Value
Rank
Protein Efficiency
7.3 g/100kcal
#248/433
Value for Money
7.1 g/$
#149/401
Leanness
2.5:1 P:F
#128/419
Low Carb
44.0g net/100g
#352/379
Fiber
3.0 g/100g
#324/366
MacroXray logoMACROXRAY
Generated on Jun 11, 2026 bymacroxray.com
YOUR PROTEIN.YOUR RULES. RANKED.
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