Protein bars, head to head
Quest vs ONE protein bars
The two brands side by side, from the labels of the 9 Quest and 9 ONE flavors we track: protein and calories per bar, protein per 100 kcal, and the flavor families each one covers. Tap any flavor to shop it on eBay.
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| At a glance |  Quest |  ONE |
|---|---|---|
| Flavors we track | 9 | 9 |
| Protein per bar | 17–21 g | 18–20 g |
| Calories per bar | 150–210 kcal | 210–240 kcal |
| Best protein per 100 kcal | 11.8 g · Double Chocolate Chunk | 9.5 g · Fruity Cereal |
| Most protein | 21 g · Peppermint Bark | 20 g · Fruity Cereal |
| Leanest bar | 150 kcal · Crispy Birthday Cake | 210 kcal · Fruity Cereal |
| Flavor families | Chocolate, Peanut butter, Cookies, Caramel, Cake & treats | Chocolate, Peanut butter, Cookies, Cake & treats |
Which one is for you?
- If protein per bar is what you count, Quest goes higher: up to 21 g in Peppermint Bark.
- If you want the lighter bar, Quest has the lowest-calorie flavor here: Crispy Birthday Cake at 150 kcal.
- For the most protein per calorie, Quest leads with Double Chocolate Chunk at 11.8 g per 100 kcal.
We compare what the labels say; we don't taste-test, and price and taste are personal — try one bar of each before buying a box.
Quest
Peppermint Bark21 g protein · 180 kcal
Chocolate Chip Cookie Dough21 g protein · 190 kcal- Double Chocolate Chunk20 g protein · 170 kcal
Caramel Chocolate Chunk20 g protein · 180 kcal
Lemon Cake20 g protein · 180 kcal
Chocolate Hazelnut20 g protein · 190 kcal
Chocolate Peanut Butter20 g protein · 190 kcal
Chocolate Explosion20 g protein · 210 kcal
Crispy Birthday Cake17 g protein · 150 kcal
ONE
Fruity Cereal20 g protein · 210 kcal- Chocolate Brownie20 g protein · 220 kcal
Chocolate Chip Cookie Dough20 g protein · 220 kcal
Birthday Cake20 g protein · 220 kcal
Maple Glazed Doughnut20 g protein · 220 kcal
Peanut Butter & Jelly20 g protein · 230 kcal
Blueberry Cobbler20 g protein · 230 kcal
Almond Bliss20 g protein · 240 kcal
Hershey's Cookies 'n' Creme18 g protein · 230 kcal
Questions people ask
Is Quest or ONE higher in protein?
If protein per bar is what you count, Quest goes higher: up to 21 g in Peppermint Bark.
Which has fewer calories, Quest or ONE?
If you want the lighter bar, Quest has the lowest-calorie flavor here: Crispy Birthday Cake at 150 kcal.
Where can I buy Quest and ONE bars?
Every flavor on this page links to a search for that exact flavor on eBay, where sellers list single bars and boxes; we may earn a commission at no cost to you.