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About this item
- Chocolate Delight: A keto friendly healthy snack made with the deep, satisfying taste of chocolate chips with a touch of sea salt with Prolon fasting bars; these intermittent fasting bars provide a delicious way to continue your fast without the guilt.
- Premium Nutrition: Enjoy the benefits of fasting with a variety of low carb & low sugar snacks, designed to provide sustained energy without the sugar crash. Enjoy the delicious flavors without breaking your fast, while benefiting from vitamins, fiber, minerals, Omega-3 fatty acids, antioxidants and non-GMO.
- Fast with Food: Prolon Intermittent Fasting Bars nourishes your body while maintaining its fasting state, ideal for morning intermittent fasting for women and men or as a late-night snack. Its proprietary formula with premium ingredients, including macadamia nuts, doesn’t trigger your body’s nutrient sensing system, keeping blood glucose levels stable and ketones in a fasting state.
- Plant Based Protein: Help curb your hunger without breaking your fast while relishing in 5-6 grams of plant based protein in every fast bar. This plant protein is sourced from almonds, pecans, and macadamia nuts while providing you with healthy fats.
- Science-Backed: Prolon is committed to high-quality, scientifically supported nutrition. Our Fasting Bars are packed with plant-based ingredients proven to nourish the body and promote longevity without triggering pro-aging pathways. Backed by research from 18 global universities, Prolon supports your journey to vibrant health.
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Product Specifications
| Package Dimensions : |
11.06 x 6.77 x 3.11 inches; 1.39 Pounds |
| UPC : |
850040360608 |
| Manufacturer : |
L-Nutra |
| ASIN : |
B0BZSY877J |
| Country of Origin : |
USA |
| Units : |
16.8 Ounce |
| Best Sellers Rank: | #28 in Nut Bars |
| Customer Reviews: | (504) |
| Feature | Chocolate Delight: A keto friendly healthy snack made with the deep, satisfying taste of chocolate chips with a touch of sea salt with Prolon fasting bars; these intermittent fasting bars provide a delicious way to continue your fast without the guilt. |
| Feature | Premium Nutrition: Enjoy the benefits of fasting with a variety of low carb & low sugar snacks, designed to provide sustained energy without the sugar crash. Enjoy the delicious flavors without breaking your fast, while benefiting from vitamins, fiber, minerals, Omega-3 fatty acids, antioxidants and non-GMO. |
| Feature | Fast with Food: Prolon Intermittent Fasting Bars nourishes your body while maintaining its fasting state, ideal for morning intermittent fasting for women and men or as a late-night snack. Its proprietary formula with premium ingredients, including macadamia nuts, doesn’t trigger your body’s nutrient sensing system, keeping blood glucose levels stable and ketones in a fasting state. |
| Feature | Plant Based Protein: Help curb your hunger without breaking your fast while relishing in 5-6 grams of plant based protein in every fast bar. This plant protein is sourced from almonds, pecans, and macadamia nuts while providing you with healthy fats. |
| Feature | Science-Backed: Prolon is committed to high-quality, scientifically supported nutrition. Our Fasting Bars are packed with plant-based ingredients proven to nourish the body and promote longevity without triggering pro-aging pathways. Backed by research from 18 global universities, Prolon supports your journey to vibrant health. |



























Beth –
Best intermittent fasting bars ever!
These bars are expensive, but worth it! They are very satisfying, taste too good to be true, and the texture is smooth. In a nutshell they are beyond amazing. 🤩 Just one bad gives sustained energy on fasting days. With a low sugar content they work for those who fast. They are extremely filling, too!
npgnpg –
Great Bars
I tried these bars as part of the Prolon fast. They taste great and I like to have them on hand for days when I am not doing a full-on Prolon fast, but want to do my modified version. I like this flavor the best.
Amazon Customer –
Very helpful for diet control
Price comparable to the Prolon website with quicker delivery. I do find these handy for fast/ calorie restricted days. They taste good to ok, depending on the flavor, and keep down hunger, keep energy up.
One person found this helpful
FL Tammy –
Fasting bars taste rancid
These taste rancid and I’m very concerned that it won’t allow me to return. The expiration date is suspicious as well.
Tan T –
Convenient, great ingredients, but is it worth the value?
I do intermittent fasting 2-3 times per year for about 2 weeks and usually try to find quick and easy ways to help me get my macros and micros necessary for sustainability. These bars are great with ingredients I know and can feel comfortable replenishing my body with the vitamins it needs while fasting. I only wish there was more protein in them, which I need more of while fasting. They all taste good, but coconut macadamia is my favorite, honey and nuts for second and chocolate chip for third.The negative – these are pricey! $36 a box for 12 bars makes these $3 each. The protein bar industry is highly competitive and there are hundreds out there. And there are plenty that have natural ingredients with the same benefits there are better with their price point. Bars are great yes, but not sure if I’d buy them again based on my wallet.
19 people found this helpful
chillinInCol –
Good bar but not sure I’d order again
The bar tastes okay especially if you are looking for a bar you can eat during your fasting period but it’s expensive. I’m not sure I would order this again. I think I’d rather save money and have a cup of black coffee to curb my appetite but I’m glad I gave it a try. If you’re curious, my suggestion is to give it a shot and see what you think.
5 people found this helpful
Marie –
Great for fasting days.
Great flavor and great for fasting days. Highly recommend. All natural ingredients- no junk.
Florida GalFlorida Gal –
These are so good
I usually do between 16-17 hrs fasting daily. I eat one of these around 17 hrs and then fast a few more hrs. These do not affect my ketones or blood glucose. I got the variety pack and they all taste good. I will say that the chocolate chip is my favorite followed by the nut + honey but will definitely get the variety pack again.
4 people found this helpful
Wanda –
Delicious
These were delicious. I tried my best to eat one a day as a snack, but………
ToolTimeTed –
Very good.
The price keeps going up so we can’t have them as much as we would like.