Fast Bar - Intermittent Fasting Bars
Developed by our longevity nutrition scientists, the Fasting Bar is the only nutrition bar you can eat during your fasting window without taking you out of a fasting state.
- Clinically tested
- Gluten-free, soy-free, dairy-free
- 25+ years of research
- Keto friendly
- Plant-based protein
- Low glycemic index
Choose your flavors:
Allergen: Contains almonds, coconut, macadamia nuts, and pecans.
How to use
Eat a Fasting Bar in the morning after your overnight fast, as a healthy snack anytime during the day, or after dinner to comfortably extend your fasting window.
Who it's for
Ideal for anyone practicing intermittent fasting, or anyone looking for a snack that benefits their health instead of supplying artificial additives and sweeteners.
Nutritional information & allergens
Plant-based protein, healthy fats and fiber. Gluten-free, soy-free and dairy-free. Contains almonds, coconut, macadamia nuts, and pecans.
The bar that makes fasting easier
Makes intermittent fasting easier by letting you eat a satiating snack when you need it — without taking you out of a fasting state.
Maintains ketones and fat-burning, with effects comparable to a water-only fast — without the hunger.
A randomized controlled study showed a near-identical impact on blood glucose as drinking water — no spike.
Premium nuts deliver antioxidants and omega-3s alongside clean, plant-based protein.
PROVEN BY SCIENCE
Like magic—but proven by science
A randomized controlled study shows that the Fasting Bar has comparable effects on ketones and blood glucose as a water-only fast — meaning it doesn't disrupt the fasting state. A regular meal, by contrast, spikes glucose and suppresses ketones.
How to use
Ideal for anyone practicing intermittent fasting — or anyone who wants a snack that benefits their health instead of supplying artificial additives and sweeteners.
Morning
Eat a Fasting Bar after your overnight fast to comfortably extend the benefits of your fast into the day.
Anytime snack
Enjoy as a healthy snack any time of day to curb hunger — without artificial additives or sweeteners.
After dinner
Have one after dinner to extend your overnight fasting window while staying satisfied.
While traveling
Portable, individually wrapped fasting support for busy days and travel.
★★★★★ 1M+ HAPPY HEALTHY CUSTOMERS
Backed by science, loved by users
It works — weight management, energy, and mental clarity.
– Zaree
✔ Verified Reviewer
I lost 5 pounds my first round and felt amazing.
– Amy
✔ Verified Reviewer
My go-to snack that actually keeps me in a fast.
– Jordan
✔ Verified Reviewer
Perfect for travel and busy mornings — and it tastes great.
– Sam
✔ Verified Reviewer