Intermittent fasting bundles
Intermittent fasting is popular for many reasons, but the hours without food can be hard. Our Intermittent Fasting Bundles pair Fasting Bars and the 1-Day Reset so you get to eat while you fast, however you do it.
Overview and benefits
- Supports metabolic health and weight management
- Made with the same science as the Prolon 5-Day FMD
- Fasting Bars extend your daily window, 1-Day Reset gives your body a deeper break
- Works with 16:8, 6:1, or 5:2, with nothing to prep or count
What's in the box
Every bundle contains the 1-Day Reset kit and a Fasting Bar box.
1-Day Reset
Minestrone / Broccoli & Quinoa
Plant-based soups
Almond and kale crackers
Fasting bars
Premium olives
Herbal tea
Hydration drink
Supplements
Pre‑portioned. No prep.
Fasting Bar (Variety Pack)
The only bar your body doesn't think it's eating.
Chocolate Chip
Coconut Macadamia
Nuts and Honey
12 or 24 bars, by bundle
Shipping
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Choose your bundle
The Essentials
$90 $63.75 Save 29% ($26.25)
1-Day Reset + 12 Fasting Bars
Two weeks of daily Fasting Bars, plus a 1-Day Reset.
Reset: Minestrone / Broccoli & Quinoa · Bars: Variety Pack
The Habit
$130 $84.15 Save 35% ($45.85)
1-Day Reset + 24 Fasting Bars
A bar a day for a month, with one Reset day to anchor it.
Reset: Minestrone / Broccoli & Quinoa · Bars: Variety Pack
The Practice
$280 $161.50 Save 42% ($118.50)
4 1-Day Resets + 24 Fasting Bars
For those following 6:1, a full month of daily bars, with once weekly Reset days
Reset: Minestrone / Broccoli & Quinoa · Bars: Variety Pack
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25+
Years of scientific research
40+
Clinical trials
18
Leading research institutions
130+
Global patents
Ways to fast
Bundles, for the way you fast.
Some people fast a set number of hours each day. Others fast one or two days a week. Many do both, and that's what each bundle is built for.
Every day
Fasting Bars
A snack for the hours between meals that helps you stretch your fasting window.
Fasting days
1-Day Reset
A complete, ready-to-follow fasting day, with food. Nothing to plan or count.
Ways to use it
Daily (time-restricted eating)
Eat within a set window, like 8 hours (16:8), and fast the rest. A Fasting Bar in the morning stretches your overnight fast, or one in the afternoon gets you past the 3pm slump, clinically shown to keep you in your fat-burning state.
Weekly (6:1)
Eat normally most days, and cut back one day a week. The 1-Day Reset is everything you eat that day, already portioned.
What's in the box
The better way to intermittent fast
Fasting morningsFasting Bar
Clinically tested to keep you in a fasting state.
- What it is
- A plant-based bar made with macadamias, walnuts and pecans, with 6g of plant protein.
- When to eat it
- One a day, in the morning, to extend your overnight fast.
- Flavors
- Chocolate Chip, Coconut Macadamia, Nuts and Honey. Bundles come in 12-bar variety packs.
One full fasting day1-Day Reset
- What you eat that day
- Organic soups, kale crackers, olives, nut bars and herbal teas, portioned across the day. About 750 calories.
- How often
- Once or twice a week (6:1 or 5:2), never on back-to-back days.
- Soups
- Minestrone, and Broccoli and Quinoa.
Your week
How a week works
Eat a Fasting Bar in the morning to extend your overnight fast. Once a week, make one day a 1-Day Reset.
The days in between
Fasting Bar days
Hungry before your eating window opens? Eat a bar in the morning instead of waiting it out.
The reset day
1-Day Reset day
A full day in a fasting state, and you still eat. Soups, kale crackers, olives, nut bars, and herbal teas, portioned from morning to evening, about 750 calories in total.
The study
Tested against water
In a randomized controlled study, the Fasting Bar had comparable effects on ketones and blood glucose as a water-only fast.
Blood glucose and ketones over four hours, Fasting Bar vs. water.
Design
Randomized, controlled
Participants
105 adults
Condition
After a 15-hour overnight fast
Measured
Glucose and ketones
Data on file. Individual results vary.
How the Bundles work with your 5-Day FMD cycles
The 5-Day sets the foundation. Intermittent fasting is the daily and weekly layer between cycles, and it can help the benefits of your 5-Day go further.
How it fits together
-
1
3 to 4 times a year
5-Day FMD
The foundation. Your deeper fasting cycle.
-
2
Weekly or monthly
1-Day Reset
One full fasting day between cycles, already portioned.
-
3
Every day
Fasting Bars
One bar to stretch your daily fasting window.
Real customers, real results
In their own words
“Great fasting bars. Been buying these since Prolon created them. Grateful I can get at Amazon now on subscription. Highly recommend”
“Good taste and apparently don’t break a fast”
“I like to do 16 to 20 hour fasts, but I also carry one of these bars in my bag so I’m prepared in case I feel the need to eat something. I can do it without breaking my fast; they are delicious and leave you satisfied.”
“These bars are good, and they are not too sweet. If you are looking for a fulfilling plant based protein bar you may like this one. I do not like a protein bar and all you can tase is the sugar. This bar is the perfect bar that will carry you over until you are ready to eat a meal. I will be purchasing again. I plan on taking them on the road.”
“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.”
“Great product and needs no refrigeration”
“These were delicious. I tried my best to eat one a day as a snack, but…”
“Good, healthy product”
Verified Amazon purchases, shown as written. Individual reviews reflect the experience of the customer who wrote them and are not a guarantee of results. Reviews shown are for the Nuts and Honey flavor.
Researched with
18
Research institutions
25+
Years of research
Customer videos
What a morning looks like
Tyler Battershell
Erin Loeffler
Jennifer Mazonas
Hannah Georgian
Brandi Gilpatrick
Rosa O'Neal
Individual experiences vary.
Questions
Before your first box
Will the bar break my fast?
It's designed not to. In a randomized controlled study, eating a Fasting Bar after a 15-hour overnight fast had a similar effect on ketones, and a nearly identical effect on blood glucose, as drinking water.
What does it taste like?
A soft, nutty bar made with macadamias, walnuts and pecans. Each variety pack includes Chocolate Chip, Coconut Macadamia and Nuts and Honey, so you can find your favorite.
How hungry will I be on a Reset day?
You eat through the day. Soups, kale crackers, olives, nut bars and herbal teas are portioned from morning to evening, about 750 calories in total. Some hunger is normal, especially on your first Reset.
Is it right for me?
Intermittent fasting is not suitable for everyone. If you are pregnant or nursing, under 18, underweight, managing a health condition or taking prescription medication, consult your doctor before starting any fasting protocol.
What if it isn't for me?
Subscriptions can be paused, skipped or cancelled anytime before your next delivery, so you are never locked in.