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Quest Low Carb Protein Bars vs. Clif Bars

What are Quest Low Carb Protein Bars?

Quest Low Carb Protein Bars are the high protein, high fibre supplement that has changed the way the industry looks at on-the-go nutrition. Considered one of the cleanest protein bars in the industry, Quest Low Carb Protein Bars are ideal for anyone looking to supplement more protein in their diet for fitness or weight loss.



  • 20 to 21 grams of protein per bar
  • 14 grams of fibre
  • Focus on Whey Protein Isolate, making these bars ideal for post-workout and to break a long fast
  • Avoids common fillers and artificial ingredients that you'll find in other protein bars


Why You Should Use Quest Low Carb Protein Bars

One of the best reasons to use Quest Low Carb Protein Bars is for fitness gains and results. Quest uses a high-quality whey protein isolate, providing you with 20 to 21 grams of protein per bar. Compare that to only 9 to 10 grams of protein offered by Clif Bars.


Whey isolate will provide you with the amino acids you'll need to protect muscle mass, promote muscle growth, and boost recovery. (1-6)


Quest also provides 14 grams of fibre per bar, which is rare of a protein supplement. This extra fibre will help you meet your daily needs for the nutrient and it will help with the digestion and assimilation of the protein.


Best of all, Quest Low Carb Protein Bars have very low sugar content, making them perfect for weight loss or low-carb lifestyles. Clif Bars, on the other hand, are high in carbohydrate content with 22 grams of sugar per bar.


Things to Watch Out for With Quest Low Carb Protein Bars

Quest recently released a line of protein bars that utilize the artificial sweetener, sucralose. If you are sensitive to this sweetener, you'll want to stick with their original bar line-up.


What are Clif Bars?

Clif Bars are the popular meal supplement bar that is ideal for those who are very active but may not necessarily be inside of a gym. Hikers, for example, love Clif Bars due to its moderate protein and high carbohydrate and healthy fat content.



  • 9 to 10 grams of protein per bar
  • High carbohydrate content at around 40 grams per bar – Ideal for endurance activities
  • Many flavours are vegan friendly and organically sourced
  • Considered some of the best tasting bars in the industry


Why You Should Use Clif Bars

Packing around 250 calories per bar along with a lot of flavour, Clif Bars make an ideal on-the-go snack for anyone who is highly active. Perfect for hiking or long workouts, Clif Bars provide you with a decent amount of protein and a lot of carbohydrates, which help to fuel your body.


Quest Bars, on the other hand, have a very low net carbohydrate intake, which is ideal for fitness-specific goals but may not be the best choice when you're on a trail for 5 hours, for example.


Clif Bars are also an ideal option for those with a vegan or environmentally focused lifestyle as many of the bars are vegan-friendly.


Things to Watch Out for With Clif Bars

Clif Bars focus on soy protein, which may be great for some but problematic for others. Diets high in processed soy have been shown to cause a number of potential issues with hormonal imbalance, especially for men. If you are trying to avoid soy, you may want to stick with Quest Bars.



Quest Low Carb Protein Bars and Clif Bars are two great nutritional supplements but for very different reasons.


Quest Low Carb Protein Bars are ideal for anyone looking to protect and promote muscle mass growth and for those on a low-carb diet.


Clif Bars are for someone who is very active and needs carbohydrate-based fuel to sustain their energy levels. Hikers and bicyclists would benefit most from these bars.


Are you a fitness enthusiast who also loves to hike? Buy both and use them accordingly: Quest Low Carb Protein Bars after a workout and a Clif Bar during a long hike.



  1. Tsutsumi R, Tsutsumi YM. Peptides and proteins in whey and their benefits for human health. Austin J Nutri Food Sci 2014;1(1): 1002
  1. Blomstrand E, Eliasson J, Karlsson HK, Köhnke R. Branched-chain amino acids activate key enzymes in protein synthesis after physical exercise. J Nutr. 2006 Jan;136(1 Suppl):269S-73S.
  1. Norton, Layne, Layman, Donald. Leucine Regulates Translation Initiation of Protein Synthesis in Skeletal Muscle after Exercise. J. Nutr. February 2006 vol. 136 no. 2 533S-537S.
  1. Negro M, Giardina S, Marzani B, Marzatico F. Branched-chain amino acid supplementation does not enhance athletic performance but affects muscle recovery and the immune system. J Sports Med Phys Fitness. 2008 Sep;48(3):347-51.
  1. Mourier A, Bigard AX, de Kerviler E, Roger B, Legrand H, Guezennec CY. Combined effects of caloric restriction and branched-chain amino acid supplementation on body composition and exercise performance in elite wrestlers. Int J Sports Med. 1997 Jan;18(1):47-55.
  1. De Lorenzo A, Petroni ML, Masala S, Melchiorri G, Pietrantuono M, Perriello G, Andreoli A. Effect of acute and chronic branched-chain amino acids on energy metabolism and muscle performance. Diabetes Nutr Metab. 2003 Oct-Dec;16(5-6):291-7.
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