One Bars Review
4 Reasons One Bars Are the Worst Low-Carb Protein Bar You Can Buy

Right when I thought things couldn’t get any worse with Fake Food protein bars, I came across One Bars, the epitome of “fake food” low-carb bars that you should avoid like the plague. Seeing as I’ve tested several dozen bars, that’s really saying something. Trust me when I say that One Protein Bars truly take the cake.
Fittingly for its name, One Bars gets just a single star–and some of the reasons are frankly shocking.

Macros: 20g protein, 7g fat, 9g fiber, 8g net carbs
One look at the inside of this bar and you can immediately tell One Bars are not healthy. This bar is most certainly not going to be good for you. Popular flavors include Glazed Donut and Birthday Cake.
Who eats these things?!
Seriously, at least I know I’m not the only one questioning these awful bars:
@thievin.gg Nah i need to know WHO is it bro please reveal ya self my boy #weightloss #losingweight #fatloss #losingfat #diet #diettips #dieting #proteinbars #proteinbar #oneproteinbar #gym #gymtok #fit #fittok #fitness #fyp #foryou #viral ♬ Monkeys Spinning Monkeys – Kevin MacLeod & Kevin The Monkey
1. The Artificial Ingredients in One Bars
Brace yourself for a chemical concoction—One Bars are loaded with maltitol, sucralose, and palm kernel oil. If you’re looking to avoid synthetic ingredients, these bars are a hard pass. Maltitol is one of the worst sugar alcohol sweeteners according to Dr. Eric Berg and can lead to digestive stomach issues such as diarhhea, cramping, and bloating. With ingredients like that, it’s no surprise these things taste so bad:
Anyone tried the ONE protein bars, are they good? byu/FoW_Completionist in1200isplenty
I got a variety pack and have to agree that these bars are disgusting. All that processed garbage is actually supposed to help with taste, but One Bars failed there too. Not only are One Bars bad for you, you won’t even get to enjoy them.
2. Fiber Fiasco: One Bars’ Dirty Little Secret
They also contain isomolto-olligosacharides (IMO), the fake and misleading fiber that Quest Bars got sued over. One of the many problems with IMO is that it’s partially digestible, increasing net carbs. A study in the Journal of Metabolic Health concluded that IMO consumption led to a rise of nearly 50 mg/dL in blood glucose, with a five-fold rise in insulin at 30 minutes.
One Bars also contain Carnauba Wax, which is what I use to polish my car (no, really). These are facts!
3. Marketing Misdirection
Despite their inferiority, One Bars are selling well on Amazon, and anyone in the market for a keto-friendly protein bar could find them.
One Bars may be flying off Amazon’s virtual shelves, but behind the glossy packaging lies a grim reality. They’re not catering to health-conscious consumers; they’re preying on the unsuspecting, lured in by taste and price alone.
But not everyone’s in love with the taste:
Comment
byu/cynflowers from discussion
in1200isplenty
4. Keto Catastrophe
Beware, keto friends: these could be the unhealthiest bars money can buy. Proceed with caution – One Bars may boast low carb counts, but they’re sorely lacking in essential fats. With a laundry list of suspect ingredients, these bars are more of a keto nightmare than a dream snack.
Pros and Cons of One Bars

FAQs
Are One Bars good for you?
No, One Bars are not good for you. They are not healthy at all. In fact, they are some of the most unhealthy protein bars we've ever tested. They're loaded with sugar alcohols, fake fiber and scary artificial ingredients you should never put in your body, like Carnauba Wax, which can also be used to polish your car (seriously).
What are One Bars' available flavors?
One Bars come in the following flavors: • Birthday Cake • Almond Bliss • Maple Glazed Donut • Peanut Butter Pie • Blueberry Cobbler • Peanut Butter • Peanut Butter Chocolate Cake
What ingredients are in One Bars?
One Bar Ingredients include: protein blend (whey protein isolate, milk protein isolate), isomalto-oligosaccharides (prebiotic fiber from vegetable source), vegetable glycerin, maltitol, palm kernel oil, sunflower seed butter, natural flavors, nonfat dry milk, soy lecithin (an emulsifier), sea salt, tapioca starch, calcium carbonate, colored with beta carotene, distilled monoglycerides and sucralose.
Are One Bars keto?
Not really. They're low carb but not high in fat, and they're loaded with unhealthy ingredients so they're not really good for any human. See our review of the best keto friendly protein bars for 2022.
Where can I buy One Bars?
You can buy One Bars on their website or on on Amazon. You may also see them at CVS, Safeway, Trader Joe's and 7 Eleven.
Psst! Got a moment?
If you're reading this, you came here for one of my many protein bar reviews, which means you're a fellow bar eater!
If you found my article helpful, I hope you'll take a look at Human Food Bar, which I created after testing over 100 bars. It was inspired by the Hunter Gatherer diet, because they're the healthiest humans around.
The bar's unique formulation can help you cut cravings, lose weight, sleep better, have more energy, regulate digestion, and more. It does this by balancing your gut biome.
Human Food Bar comes recommended by New York Times best-selling author Dr. Steven Gundry, MD.
Scroll through the gallery to learn more!

