Product Comparison

ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars vs Perfect Bar Original Peanut Butter Protein Bar

ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars edges ahead on a protein + calorie + rating blend. ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars scores higher in that blend because it offers more protein per serving (20g vs 17g), a lighter calorie hit (210 vs 330), more protein per 100 calories (9.5g vs 5.2g).

Full side-by-side of protein, calories, macros, and protein density for ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars and Perfect Bar Original Peanut Butter Protein Bar below.

ONE Brands

**ONE BARS** Birthday Cake Flavored Protein Bars

Wins on: Protein, Calories, Protein per 100 cal

**ONE BARS** Birthday Cake Flavored Protein Bars

Protein

20g

Calories

210

Protein per 100 cal

9.5g

protein bars4.4

Pros

  • More protein per serving: 20g vs 17g.
  • Lower calorie load: 210 calories vs 330.
  • Better protein density: 9.5g protein per 100 calories.

Cons

  • Weaker review score: 4.4 vs 4.7.
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Perfect Bar

Original Peanut Butter Protein Bar

Wins on: Sugar, Fiber, Carbs, Fat

Original Peanut Butter Protein Bar

Protein

17g

Calories

330

Protein per 100 cal

5.2g

protein bars4.7

Pros

  • Stronger shopper rating: 4.7 vs 4.4.

Cons

  • Less protein per serving: 17g vs 20g.
  • Higher calorie count: 330 vs 210.
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Side-by-Side Breakdown
MetricONE Brands **ONE BARS** Birthday Cake Flavored Protein BarsPerfect Bar Original Peanut Butter Protein Bar
Protein20gBest17g
Calories210Best330
Sugar18gBest
Fiber3gBest
Sodium
Carbs25gBest
Fat18gBest
Protein per 100 cal9.5gBest5.2g
Pick by what matters most to you

“Healthier” depends on your goal — here’s the real winner on every number we track, so two people with different priorities can both get the right answer.

  • Protein: ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars wins, 20g vs 17g.
  • Calories: ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars wins, 210 vs 330.
  • Sugar: Perfect Bar Original Peanut Butter Protein Bar wins, 18g vs —.
  • Fiber: Perfect Bar Original Peanut Butter Protein Bar wins, 3g vs —.
  • Carbs: Perfect Bar Original Peanut Butter Protein Bar wins, 25g vs —.
  • Fat: Perfect Bar Original Peanut Butter Protein Bar wins, 18g vs —.
  • Protein per 100 cal: ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars wins, 9.5g vs 5.2g.

ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars edges ahead on a protein + calorie + rating blend.

ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars scores higher in that blend because it offers more protein per serving (20g vs 17g), a lighter calorie hit (210 vs 330), more protein per 100 calories (9.5g vs 5.2g). This blend won’t match your priorities if sugar, carbs, or diet fit matter more to you than protein, calories, and rating.

Frequently Asked Questions

ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars vs Perfect Bar Original Peanut Butter Protein Bar: which has more protein?

ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars has more protein per serving: 20g versus 17g.

Which option is better for a lower-calorie snack?

ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars is the lighter option at 210 calories, compared with 330 calories for the alternative.

Which snack packs more protein for the calories?

ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars is the more protein-dense pick at about 9.5g of protein per 100 calories.

Which is healthier, ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars vs Perfect Bar Original Peanut Butter Protein Bar?

"Healthier" depends on your goal: ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars has more protein (20g vs 17g); ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars is lower in calories (210 vs 330). Neither is objectively the "healthiest" for everyone — see the pick-by-priority breakdown above, or try our free AI Snack Finder to get matched to your specific goal.

What is the final verdict in this comparison?

ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars edges ahead on a protein + calorie + rating blend. ONE Brands **ONE BARS** Birthday Cake Flavored Protein Bars scores higher in that blend because it offers more protein per serving (20g vs 17g), a lighter calorie hit (210 vs 330), more protein per 100 calories (9.5g vs 5.2g). Because they are in the same category, this is a direct apples-to-apples comparison.

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