One bar.
The craving
stops.
Most snack bars delay the craving. Here's the research behind why KRACK'D ends it.
Sugar doesn't satisfy.
It resets the craving.
When you eat sugar, your brain's reward signal spikes, and so does your blood sugar. Then both crash. That crash makes you crave more sugar. It's not willpower failure. It's biology. Krack'd has <1g sugar. The loop never starts. 1,2
University of Michigan research found that high-sugar diets progressively weaken your brain's reward signal. That means you need more sugar to feel less satisfied over time. It's a worsening loop, not a character flaw. At <1g sugar, KRACK'D never starts it. 1,2,3
7g fiber signals your gut
to stop eating.
Fiber triggers your gut to release fullness hormones that tell your brain to stop eating. It also slows digestion, so the full feeling lasts. This is one of the most well-proven findings in nutrition research. 4
Source: Slavin JL. Dietary fiber and body weight. Nutrition. 2005.
More fiber than you'd expect from a 120-calorie bar. And because fiber and allulose trigger fullness through two separate pathways, the signal is doubled — both working at the same time. 4
Allulose activates your
body's own fullness hormone.
Allulose is a naturally occurring rare sugar found in figs and raisins. Your body doesn't break it down. Near-zero calories, and research consistently shows it doesn't meaningfully raise blood sugar or insulin. More importantly: studies suggest it triggers the release of GLP-1, your body's own fullness hormone, directly in your gut. Most studies used doses of 5–25g. Each KRACK'D bar contains 7g (toward the lower end of that range). Research at higher doses showed stronger effects. 5,6
This research is real but still growing. Krack'd is food, not a drug, and makes no medical claims.
D-allulose stimulates GLP-1 release from intestinal L-cells, which activates vagal afferent nerves, reducing food intake in controlled studies. nature.com → 5
Randomized, double-blind, controlled crossover trial using 25g allulose. Significantly elevated GLP-1, CCK, and peptide YY vs. controls. Artificial sweeteners (sucralose, acesulfame-K) did not produce the same response. Each KRACK'D bar contains 7g allulose — toward the lower end of studied doses. Effects at this level are still being researched. 6
What we deliberately
left out.
A 2023 Nature Medicine study raised questions about a sugar alcohol widely used in keto products. The research is preliminary. We'd rather wait for more data. 7
It raises blood sugar like a non-keto snack, and most "keto" bars exclude it from their net carb math. Products using maltitol can still raise blood sugar meaningfully.
Sucralose and acesulfame-K don't trigger GLP-1 or fullness hormones in human trials. 6 They satisfy the taste. Not the craving.
Three experts.
One conclusion.
"These were DELICIOUS! As a Functional Nutrition Practitioner I am always trying to find healthy snacks that not only have real ingredients, but taste good too. Love that they have fiber, some protein and made with allulose and monk fruit for <1G sugar so that you’re left feeling satisfied and not craving more."
"As a functional health expert and even more importantly a mom, I prioritize blood sugar control as a pillar of health, while still being able to live life a bit! I’m always looking for swaps that actually support the body and Krack’d Snacks hit that mark. With minimal sugar, added fiber (!), and low net carbs, this treat helps avoid the spikes and crashes you’d expect from traditional sweets. The use of allulose and monk fruit keeps the glycemic impact low, making them a great option for families wanting better choices without the fight. Bonus: my kids loved them too, which makes this a realistic, feel-good win."
"I get so excited when I find something I personally love and enjoy daily. It’s icing on the cake when I can confidently recommend it to my clients, knowing it brings both joy and supports their well-being. I didn’t just fall in love with Krack’d because of what they put in, but also what they leave out. They’ve nailed not only the ingredients, but also the texture and mouthfeel. My husband and I look forward to it every night."
Real people.
Real results.
The craving
stops here.
One bar. Tonight. Zero sugar. The science works.
Start AutoShip. Save $32+-
1
Avena NM, Rada P, Hoebel BG. Evidence for sugar addiction: behavioral and neurochemical effects of intermittent, excessive sugar intake. Neurosci Biobehav Rev. 2008;32(1):20–39.
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2
Lennerz BS et al. Effects of dietary glycemic index on brain regions related to reward and craving in men.Am J Clin Nutr.2013;98(3):641–647. High-glycemic foods activate brain reward regions; blood sugar crash drives subsequent craving. pubmed.ncbi.nlm.nih.gov
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3
May CE, Dus M. High-sugar diet dampens dopamine release, triggering overeating. University of Michigan / eLife. 2021. news.umich.edu
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4
Slavin JL. Dietary fiber and body weight.Nutrition.2005;21(3):411–418. Review of mechanisms by which dietary fiber promotes satiety, elevates GLP-1 and PYY, and moderates postprandial blood glucose documented across multiple fiber types.
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5
Iwasaki Y et al. GLP-1 release and vagal afferent activation mediate the beneficial metabolic effects of D-allulose. Nature Communications.2018;9:113. nature.com
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6
Dreher J et al. D-allulose and Erythritol on gut sweet taste receptor and GI satiation hormone release in humans: a randomized, controlled trial. J Nutr. 2022. ncbi.nlm.nih.gov
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7
Witkowski M et al. Erythritol and cardiovascular event risk. Nature Medicine. 2023;29:710–718. nature.com