Fast Bar’s recipe comes from more than 20 years of research at the University of Southern California (USC). Scientists studied how unique blends of macronutrients and micronutrients could be consumed without kicking your body out of a fasting state. They used this formulation to create the Fast Bar, which provides the tasty nutrition of macadamias, pecans, almonds, and honey that has a similar fasting impact as a glass of water*. It’s also plant-based, Keto-friendly, and gluten-free.

Into Intermittent Fasting? Try a Honey Fast Bar in the morning to curb hunger until your eating window starts (or a Dark Cocoa Fast Bar as your window closes for a late-night snack). Nerd out more below.

*Benefits seen in a randomized, controlled study in 105 adults after a 15-hour overnight fast comparing the glucose and ketone results every hour for 4 hours in the Fast Bar group, breakfast group and water-fast group. Click here to read the published scientific article.
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Intermittent fasting with Fast Bar®
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Similar Glucose & Ketone levels as drinking water
Fast Bar’s proprietary formula of premium ingredients doesn’t trigger your body’s nutrient sensing system, so your body’s tricked into thinking it’s fasting. It's the only thing you can eat during your fasting window without breaking your fast — eat without your body even knowing

Clinical Trial - Glucose LevelsClinical Trial

*In a randomized, controlled study of 105 adults, participants fasted overnight for 15 hours, then had either breakfast, a Fast Bar, or water.  Blood glucose and ketones were measured every hour for 4 hours with results shown above. Click here to read the published scientific article.