Try Fastful for Free!
We’re so confident that Fastful will make fasting easier, that your first 4-pack is on us.
How It Works
Enter your email address or phone number. You’ll receive an email or text with instructions.
Pick up a 4-pack on your next shopping trip. (Find a store here.)
We’ll reimburse you 100% by Paypal or Venmo. First time customers only, limit one per household.
Find a Store With Fastful Today
How Fastful Works


The most popular time-restricted eating plan is 16:8. Just use Fastful® as your after-dinner 'dessert' and you're on your way!


Stop Counting Calories.
Intermittent fasting is a simple, proven lifestyle that leads to a healthier mind, body and spirit. And nothing prepares you for your next fast better than Fastful, the world’s only pre-fasting nutrition bar. In fact, 85% of users reported that fasting was easier with Fastful*.

Packed With Superfoods
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Micellar Casein Protein
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Chia Seeds
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Flax Seeds
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Almond Butter
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Blueberries
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Cocoa Powder
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Allulose