Fast Bar® has reinvented
fasting - now you can eat
without breaking your fast!*
When should I eat Fast Bar?
Have a Fast Bar in the morning to help extend your overnight fast* or anytime during the day to help curb your hunger. Try it as a late night snack, since it does not induce high blood glucose. Essentially, anytime you want to “fast with food."
Lemon Berry
Blueberry Acai
Fast Bar Nuts & Cacao Chips
from $16.00
Fast Bar Nuts & Dark Cocoa
from $16.00
Fast Bar Nuts & Honey
from $16.00
Fast Bar Variety
from $48.00

Fast Bar®, the first bar specifically designed for intermittent fasting

Fast Bar® has made sticking to your fasting goals more achievable. A new randomized, controlled study of 105 adults who fasted for 15 hours overnight, then had glucose and ketone levels measured every hour for four hours after eating either breakfast, a tasty Fast Bar, or just water, showed that Fast Bar did not break their fast.

Why Fast Bar?

In other words, you can eat a Fast Bar and extend your fasting window! Who wouldn’t want to actually eat something as opposed to just drinking water?

Real Reviews.
Real Customers.

Best "bar" I've ever purchased!
I love these bars! They are filling,
especially early in the morning before work when I don’t feel like eating a big breakfast. They always hold me over until lunch and give me energy without making me feel weighed down. I highly recommend trying one today!


Send us yours @thefastbar

*Benefits seen in a randomized, controlled study in 108 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. Data on file.