Chocolate Peanut Butter Quest Bar Review (New Corn Fiber Type)

All Quest Bars are made of high quality protein and have plenty of fiber, but these days that’s not enough. Food tech has advanced to the point that a nutrition bar must also be delicious to be called the best. So in this review I’ll let you know how the Chocolate Peanut Butter Quest Bar tastes, and what difference the new fiber type has made.

Chocolate Peanut Butter Quest Bar


The official description from Quest’s website:

If you’re craving that classic candy combo of chocolatey, peanut-buttery goodness… this Quest Bar is a gift from #CheatClean heaven! Reinvented with 20g of protein and 4g net carbs, this bar is here to save your sweet tooth.

It’s an uncoated, cocoa and peanut-flavored protein bar. This is what it looks like:

Chocolate Peanut Butter Quest Bar, no wrapper

Taste & Texture

It’s sweet, but the sample I tried seemed less so than other flavors. It’s chewy, and the flavor elements are nicely detectable and balanced. There are very small pieces of peanut, but the texture is basically uniform throughout—ie, the peanuts aren’t big enough to provide noticeable variation in the consistency.

The Chocolate Peanut Butter Quest Bar is nice, but probably more of a second choice if other flavors are available (but still better than 99% of other protein bars out there). I’d love bigger pieces of peanut to add some variety to the consistency.

As with all Quest Bars it’s great as it is, but it’s even more rich and dessert-like heated about 10 seconds in a microwave or baked a few minutes (which is even better because the outside goes crispy).

Corn Fiber Recipe Update

Quest Nutrition built their reputation with IMO (isomaltooligosaccharide) fiber as a main ingredient in their bars. They’ve since removed IMO from their line up entirely and now use corn fiber instead, claiming it makes a softer, longer-lasting product.

The IMO version could get quite tough towards the end of the use-by date. While by no means tough, in the updated Chocolate Peanut Butter Quest Bar I had, the new fiber didn’t seem to make the bar noticeably softer. Strange, because the change to some of the other varieties was quite big, but I notice this is a common theme in the chocolate flavors. Maybe it’s an effect of cocoa.


Serving size: 60 g
Calories: 170
Fat: 7 g
Net carbohydrate: 4 g (1 g sugar)
Fiber: 14 g
Protein: 20 g

(Weights of Quest Bars can vary quite a bit, leading to significantly different caloric content than stated on the label. I did a write-up here.)

Chocolate Peanut Butter Quest Bar Rating: 7/10

This is a good flavor, but I find myself opting for other flavors when I buy Quest Bars. However, if you’re struggling for calories, this is one of their lowest energy-content offerings.

Thanks so much for reading. If this was useful, I have reviews of all Quest Bars here.

All feedback and questions welcome, I’d love to hear from you—just use the comments box below or send me an email.

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