Pages Navigation Menu
Categories Navigation Menu

[Review] Quest Bar — The Best Protein Bar On Earth

Quest Protein Bars, Quest Protein Bar Nutrition, Quest Bar Nutrition, Quest, Quest Bars, Best Protein Bar, Healthiest Protein Bar

I recently named Quest Bars the Healthiest Protein Bar in my 51 “What’s The Best?” Fitness & Nutrition Questions, Answered In One Line article, but I think it’s necessary to take it a step further. Quest Bars are so far beyond any other protein bar, in terms of health, that they deserve their own solo call-out.

In real-world terms: they’re Michael Phelps in Beijing, circa ’08; other protein bars are the guys that didn’t even qualify…for the Olympics. Literally blown out of the water.

95% of protein bars are “healthed up” candy bars. To varying degrees, they use their high protein content as marketing to mask the overwhelming amount of saturated fat, sugar, and artificial ingredients hiding inside. Let’s play a little game.

Below are nutrition facts for bars A, B, and C, except that I’ve removed their protein content:
  • Bar A — 400 calories, 10 g fat, 6 g saturated fat, 29 g sugar
  • Bar B — 300 calories, 8 g fat, 4 g saturated fat, 25 g sugar
  • Bar C — 270 calories, 14 g fat, 5 g saturated fat, 28 g sugar

If you had to pick, which would you say is the healthiest? Unhealthiest? It’s a toughy.

Bar C



With their protein content stripped away — 31 grams and 20 grams, respectively — the Met-Rx Big 100 Colossal Protein Bar and ProMax Protein Bar are nothing short of absolute junk. They have the same nutritional profile as a snickers, plus they’re actually loaded with A LOT more artificial sweeteners.

And if you’re skeptical, thinking “blah blah blah that’s not fair, they have protein, you’re comparing apples to cantaloupes,” fine, go ahead and eat every Snickers with a whey protein shake — together they’re nutritionally identical to the Met-Rx bar.

Would you consider that combo healthy?

Don’t fall for the marketing — protein is nice, but it’s not that nice. I always recommend whole food (chicken, fish, dairy, etc.), whey protein powder, and then bars; in order of nutrition and overall health.

Quest Bars turn that equation around with a protein bar that breaks the industry mold. They’re uber healthy and they taste pretty good, too.


 Quest Protein Bars


Quest Protein Bars, Quest Protein Bar Nutrition, Quest Bar Nutrition, Quest, Quest Bars, Best Protein Bar, Healthiest Protein Bar

Quest Bars are quite possibly the perfect protein bar. They’ve got 20 grams of HQ whey/milk protein isolates — the purest, most digestible form of protein powder — under 4 grams of net carbs, and a WHOPPING 17 + grams of fiber.

The fiber comes in the form of Isomalto-Oligosaccharides (IO), a plant-derived prebiotic (a non-digestible ingredient that stimulates bacterial activity in the gut) that not only reduces hunger and keeps the waist trim, but also significant increases digestive health and “stool output.”¹

You do the math.

I’m also absolutely googoo-gaga over the fact that Quest Bars are made from close to 100% all-natural ingredients, including a Stevia-sweetened line. Lo Han Guo (I confess, I had no idea what this was until I researched it) is an herb-derived sweetener much like Stevia — so it fits the au natural billing.

If you have stomach issues stick with the line of bars without erythritol. Although it’s the healthiest sugar alcohol available, it can cause some bloating and mild abdominal discomfort.

Quest Bars come in 11 flavors, including:

  • Coconut Cashew
  • Vanilla Almond Crunch
  • Chocolate Peanut Butter
  • Apple Pie
  • Cinnamon Roll
  • Chocolate Brownie
  • Strawberry Cheesecake
  • Mixed Berry Bliss
  • Peanut Butter Supreme
  • Lemon Creme Pie
  • PB & J



As far as protein bars go, Quest Bars are best-in-class. The combination of high quality whey protein isolates, a MASSIVE 17+ grams of fiber, healthy fats, and a short list of all-natural ingredients easily make Quest Bars the best all-around protein bars on earth.


Amazon: Quest Bars, 12 pack — $26.50

*Update, 8/3* — Enter promo code SAMPLE on Quest’s official website for free shipping on all bars and boxes, they even have variety packs


Find Lean It UP on Twitter, Facebook and Pinterist for real-time fitness/nutrition tips, advice, info and updates.



1. Chen H-L, Lu Y-H, Lin J-J, Ko L-Y: Effects of isomalto-oligosaccharides on bowel functions and indicators of nutritional status in constipated elderly men.J Am Coll Nutr20 :44– 49,2001 .


Bryan DiSanto

Bryan DiSanto

Founder & Editor-in-Chief at Lean It UP
ELLO ELLO I'm Bryan DiSanto. I'm the Founder & Editor-in-Chief of Lean It UP, a CPT/CSN/Fitness Coach, Chef trained at Le Cordon Bleu – Paris, NYU graduate, ex-fat kid, and all-around fitness junkie.

I also contribute to Men's Health Magazine.

When I'm not working on my abs (or somebody else’s), whipping up avocado roses and avocado toast, or running a Tough Mudder, I'm probably yelling at a Carolina Panthers game somewhere.

Come be friends with me on Instagram (@BRYDISANTO) & Snapchat (BRYDISANTO).
Bryan DiSanto
  • Thanks Joshua Nackenson for letting me know about Quest!

  • *Update, 8/3* — Enter the promo code SAMPLE on Quest’s official website for free shipping on all bars and boxes, they even have variety packs

  • *Update, 8/3* — Enter the promo code SAMPLE on Quest’s official website for free shipping on all bars and boxes, they even have variety packs

  • These are friggin awesome. I’ve been through every bar imaginable and these have the best profile and have a great taste for each of it’s flavors

  • Mylifemyvibe

    Whey protein isolate is garbage. Hence the warnings of causing some bloating and mild abdominal discomfort. Why the heck would I want that. There really is no need for dairy in the body .

    • That’s completely untrue. WPI shouldn’t cause any discomfort at all, all of the lactose is filtered out and removed. The added fibers and sugar alcohol cause the stomach discomfort in a lot of people, and that holds true for most bars.

      I’m severely lactose intolerant and I can confirm that WPI doesn’t mess up my stomach at all (whey concentrate and regular dairy products do).

  • Debi

    Cannot understand why people love these bars so much. The texture is not appealing, they have a heavy protein taste and are not all that tasty. Ugh!

    • Throw them in the microwave for 5-7 seconds. It’s a complete game changer (especially with the Banana Nut).

      But overall, I think they taste solid; certainly not the best tasting bar by any means, and a lot of flavors are hit or miss (I find some to be un-stomachable and really protein-y like you mentioned; and some to be thoroughly delicious).

      The main reason I come back is for the nutrition profile. Plus, I try not to eat bars if at all possible.

  • Taylor Carroll

    Quest bars seem to have received a good grade overall on several different protein bar review sites. I’ll choose a couple of these guys each week for my mid-morning energy boost 🙂

  • jamie

    If you want those Quest bars at a price that is somewhat affordable then checkout this page:
    12 bars for 21.78$ and free shipping to USA. I got mine in 3 days and i had the cookie dough flavour. 3 packs actually . i am som addicted to these bars 😀