Banana Nut Muffin 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 Banana Nut Muffin Quest Bar tastes, and what difference the new fiber type has made.

Banana Nut Muffin Quest Bar in wrapper


The official description from Quest’s website:

“Mmm… Banana nut muffin! Take a bite out of this classic breakfast combination transformed into #CheatClean goodness! Add 20g protein to top it off, and what more could you ask for?”

It’s an uncoated banana-flavored protein bar. This is what it looks like:

Banana Nut Muffin Quest Bar, no wrapper

Taste & Texture

Chewy, very sweet, nice strong flavor of banana, with walnut and cinnamon elements.

I’ve made no secret of my love for these bars, but the Banana Nut Muffin Quest Bar is ridiculously enjoyable. As I said, it’s really sweet, but somehow never overwhelming.

My only criticism is the uniformity. The texture is basically the same throughout—some bigger, chewier bits of dried banana would be amazing, and so would larger nut bits.

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. That’s notable because they’ve since removed IMO from their line up entirely and now use corn fiber instead, claiming it makes a softer, longer-lasting product.

In this bar, the new fiber type makes the bar noticeably softer than the old IMO version, which could get quite tough, especially towards the end of the use-by date.


Serving size: 60 g
Calories: 180
Fat: 8 g
Net carbohydrate: 4 g (less than 1 g sugar)
Fiber: 13 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.)

Banana Nut Muffin Quest Bar Rating: 9/10

I adore this flavor, and it just reinforces my amazement that a nutrition bar with good quality ingredients (ie, a complete protein and significant fiber content) can actually be a genuine treat.

Suffice it to say I buy it regularly.

Cheapest Places to Buy

Supplement shops are very expensive comparatively, so I always buy online.

I find Amazon consistently has the cheapest price now. If you’re in the UK you can buy at (£19.40 for box of 12 at time of writing).

If you’re in America, you’re lucky—they cost way less for you guys. You can buy at Quest’s website ($24.99 for box of 12 at time of writing).

Actually, even if you’re in the UK you could do worse than ordering off the Quest website above. Their shipping is cheap and fast, and the price works out about the same, funnily enough. Cheaper if it goes straight through customs tax-free, which sometimes happens.

Thanks so much for reading. If you found this 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.

If you like what I do here, you can support my work by buying through the affiliate links on this page (it doesn’t cost any more for you). Cheers!

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