I had a bit of a rollercoaster experience. On the positive side, the results were impressive. I lost 4lbs in the 5 day program. However, the side effects were a challenge. I had severe headaches and n... See more
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Review summary
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This was a professional, beautifully packaged protocol. The 5 day fast was really not difficult, and although I was afraid the food would be hard to get down, it was actually good. I am in love with t... See more
Company replied
I just finished Prolon’s 5-Day kit and honestly, I loved it. The meals felt surprisingly tasty for fasting-mimicking food: the soups were hearty, the bars weren’t chalky, and the nut mixes kept me fro... See more
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4.1
Great
10K reviews
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Above & Beyond
I have tried many different health and wellness companies that sells different products. But what I experienced with ProLon was above and beyond. There are many companies that sells excellent products but Customer Service with ProLon is just the best. Considerate, thoughtful, kind, thorough and I haven’t had any bad experience with their service so far and overall a complete wellness service.
April 9, 2026
Unprompted review
Reply from Prolonlife
Hi,
Thank you so much for your incredibly kind words, we truly appreciate you taking the time to share this.
We’re honored to hear that your experience with Prolon has stood out, especially when it comes to customer service. Providing thoughtful, supportive care is something we deeply value, and it means a lot to know that it’s being felt.
We’re here for you anytime and grateful to be part of your wellness journey!
Easy to order and the product are great!
April 9, 2026
Reply from Prolonlife
Hi Dbrice,
Thank you so much for your feedback!
We’re so glad to hear that the ordering process was easy and that you’re enjoying the product.
We truly appreciate your support and are here whenever you need us!
You guys are awesome
You guys are awesome! You've been saving me for years and I love everything about your Fasting Program and living on those wonderful Intermittent Fasting Bars so very often! Thanks so very much for all of that!🥰❤️♥️👍🏻❤️♥️🩷❤️♥️
April 8, 2026
Reply from Prolonlife
Hi Cynthia,
Thank you so much for your kind words and for sharing your experience with us. It truly means a lot to hear that the program has been part of your routine for so many years.
We’re so glad you’re enjoying the Fasting Bars and that the fasting program has been helpful for you along the way. Your support and enthusiasm mean a great deal to our entire team.
Thank you for being such an important part of the Prolon community. We’re grateful to be on this journey with you!
Prolon took the guess work out
Prolon took the guess work out. Program was easy to follow and digestible. Day 4 and 5 were a bit hard for me but I got through it and got the benefits of following the program.
April 8, 2026
Reply from Prolonlife
Hi Beverly,
Thank you for taking the time to share your experience. We’re so glad to hear that the program helped take the guesswork out and that you found it easy to follow overall.
Days 4 and 5 can definitely be the most challenging for some people as the body fully settles into the fasting-mimicking state, so it’s great to hear that you pushed through and were able to experience the benefits of completing the program.
We truly appreciate you being part of the Prolon community, and we’re here anytime if you have questions or need support for your next cycle.
I love the fasting shake
I love the fasting shake. Keeps me full till lunchtime. Ordering is simple.
April 6, 2026
Reply from Prolonlife
Hi Cindy,
Thank you for sharing your experience! We’re so glad to hear that you’re enjoying the Fasting Shake and that it’s helping keep you satisfied through the morning.
It’s also great to know that the ordering process has been simple and convenient for you. We truly appreciate your support and are happy to have you as part of the Prolon community. If there’s ever anything we can assist you with, please don’t hesitate to reach out.
Love all the packaging & the ease to…
Love all the packaging & the ease to use! The food is pretty good, too!
April 8, 2026
Reply from Prolonlife
Hi Lori,
Thank you for taking the time to share your experience! We’re so glad to hear that you’re enjoying the packaging and finding the program easy to follow.
It’s also great to know that you’re enjoying the food as well. We truly appreciate your feedback and are grateful to have you as part of the Prolon community. If there’s ever anything we can support you with, please don’t hesitate to reach out.
It wasn't easy modifying my order on…
It wasn't easy modifying my order on the website. But eventually I was able to order what I wanted.
April 8, 2026
Reply from Prolonlife
Hi Lawrence,
Thank you for taking the time to share your experience. We’re glad to hear that you were ultimately able to place the order you wanted, though we’re sorry the process of modifying it on the website wasn’t as smooth as it should have been.
Your feedback is very helpful, and we’ll be sure to share it with our team as we continue working to improve the website experience and make managing orders easier.
If you ever need assistance with modifying or placing an order in the future, our support team is always happy to help. We truly appreciate you being part of the Prolon community.
A very satisfied new customer!
I'm on day 3 and am finding the program to be easier to follow than imagined. I do have a good framework around food intake, and my body does not need a lot, which is why I took on the program to begin with. The soups are good and the tea, crackers, olives, bars and chocolate "goodie" are satisfying. I'm really never hungry. I took the coaching advice and stayed busy this week, cancelled all outings, am in bed early, and am focused on me! I just signed up for a subscription and will attempt to follow the program 1x/month for the next few months.
April 8, 2026
Reply from Prolonlife
Hi Nancy,
Thank you for taking the time to share your experience with us. It’s wonderful to hear that you’re finding the program easier to follow than you initially expected and that the meals have been satisfying along the way.
It sounds like you approached the week very thoughtfully by creating space to focus on yourself and following the coaching guidance that can make a big difference in helping the body adjust to the program. We’re also glad to hear that the soups, teas, crackers, olives, bars, and chocolate treat have helped make the experience enjoyable while supporting your fast.
We truly appreciate you being part of the Prolon community and wish you continued success as you move through this cycle and your upcoming monthly rounds. If there’s ever anything we can support you with along the way, please don’t hesitate to reach out.
Reply from Prolonlife
Hi Nell,
Thank you for sharing your experience! We’re so glad to hear that you love the product and found the ordering process easy.
It’s also great to know that the packaging met your expectations. We truly appreciate your support and are happy to have you as part of the Prolon community. If there’s ever anything we can help with, please don’t hesitate to reach out.
So easy to order.
April 8, 2026
Reply from Prolonlife
Hi Jerry,
Thank you for your feedback! We’re so glad to hear that the ordering process was easy for you.
We truly appreciate your support and are happy to have you as part of the Prolon community. If there’s ever anything we can assist you with, please don’t hesitate to reach out.
Too much advertising
I don't like that when I'm purchasing something that you're advertising constantly literally every other day it's your last day Sunday is your last day and then Monday today's your last day I think that's ridiculous advertising and I don't like that you charge shipping and I don't like that when you purchase it it has a space for a gift code or a discount code but you don't offer a code so why bother putting that there. And I think anybody that is subscribed should get a lesser price than somebody who is not. I haven't received the product and I think it's ridiculous that you sent an email out as soon as you buy something asking how you did. You didn't do great it takes 7 to 10 days to get it. You should wait two weeks before you send out a review the ad advertising and the surveys are constant and annoying.
April 7, 2026
Reply from Prolonlife
Hi Len,
Thank you for taking the time to share your feedback. We’re truly sorry to hear that your experience so far has felt frustrating, and we appreciate you being open about your concerns.
Your comments about the advertising frequency, shipping costs, promotional messaging, and the timing of our review requests are all valuable, and we understand how these aspects can feel overwhelming.
Feedback like yours helps us better understand how our communications and processes are being experienced by our customers, and we take it seriously as we continue working to improve. We have successfully shared your feedback with the corresponding team to be addressed.
We also understand your concerns about receiving a review request before the product has arrived, and we appreciate you pointing this out. Our team is always looking at ways to improve the timing and overall experience for our customers.
Our Customer Service Team would be happy to connect with you directly to review your order and address any additional concerns you may have. Please feel free to reach out to us at customerservice@l-nutra.com, and we’ll be glad to assist you.
Thank you again for your honest feedback. We truly value it and hope to have the opportunity to provide you with a better experience moving forward.
I've completed 9 rounds, anyone notice Prolon changed a few months back?
I've completed 9 rounds, and somewhere around the 5th round they changed the packaging and taste of the crackers, they are HORRIBLE!! Also, the flavor of the olives is not the same standard as before. I used to love Prolon, now I just "like" it, but I'm committed to one full year of monthly 5 FMD. 2 more rounds and I'll choose another company unless they start allowing choice in the soup, fasting bars, and L-drink flavors. They think offering different boxes is enough, but it is not. I also dislike the giant packaging boxes. I have completed many rounds and feel it's easier and cheaper along with being environmentally conscious to decrease the packaging waste!!
April 7, 2026
Reply from Prolonlife
Hi Laurel,
Thank you for sharing your experience and for your continued commitment to the program. Completing nine rounds is an incredible level of dedication, and we truly appreciate you being part of the Prolon community for so long.
We’re sorry to hear that the recent changes to the crackers and olives did not meet the expectations you had based on your previous experiences. Your feedback about taste, as well as your thoughts on having more flexibility in choosing soups, fasting bars, and L-Drink flavors, is very valuable. We understand how important these details become for customers who complete multiple cycles, and we will be sure to share your comments with our product and development teams.
We also appreciate you bringing up your concerns about the packaging and environmental impact. Feedback like this helps inform ongoing improvements as we continue working to balance product protection, quality, and sustainability.
Thank you again for taking the time to share such thoughtful feedback and for staying committed to your FMD journey. We truly value hearing from long-time customers like you and appreciate your support.
Loose weight and look younger.
Food have great taste fills you up and healthy and you loose weight.
April 7, 2026
Reply from Prolonlife
Hi Lorena,
Thank you for taking the time to share your experience with us. It’s wonderful to hear that you’re enjoying the taste of the foods and that you’ve found the program both satisfying and supportive for your health goals.
The meals in the Prolon program are carefully designed to provide nourishment while supporting the fasting-mimicking process studied in clinical research, which is why many people are pleasantly surprised by how filling and enjoyable the foods can be throughout the five days.
We’re truly grateful for your feedback and for having you as part of the Prolon community. If you continue your journey with future cycles, we’ll be here to support you every step of the way.
ProLon has changed my life for the better!
I feel so much energy and I learned to eat less. Can’t wait to do my 3rd FMD next month.
ProLon has changed my life for the better.
April 6, 2026
Reply from Prolonlife
Hi Betty,
Thank you so much for taking the time to share your experience. It’s truly wonderful to hear how much energy you’re feeling and how the program has helped you build a new relationship with food.
Many people notice similar shifts after completing their FMD cycles, especially when following the protocol as it was studied in the clinical trials, completing three consecutive monthly cycles and then reassessing how they feel. It’s great to hear that you’re already looking forward to your third cycle next month.
Most of all, it means a lot to us to know that ProLon has had such a positive impact on your life. Our goal is always to support people in feeling empowered, informed, and confident in their health journey, and feedback like yours reminds us why we do this work.
We’re so grateful to have you as part of the Prolon community, and we’ll be cheering you on during your next cycle.
I love this business!
I love this business, great customer service - friendly, helpful, and quick! Plus, they make food you can eat during your fast! Thank you for that science!! The bars are excellent, I had to subscribe so I never run out!
April 7, 2026
Reply from Prolonlife
Hi Kim,
Thank you so much for taking the time to share such a kind review. It truly means a lot to hear that you’ve had such a positive experience with both our customer service team and the program itself.
We’re especially happy to know you’re enjoying the Fasting Bars and that they’ve become a staple for you. One of the things that makes the Prolon program unique is exactly what you mentioned the ability to nourish your body with carefully designed foods while still supporting the fasting-mimicking process backed by decades of research.
Your support and enthusiasm mean a great deal to our entire team. Our goal is always to make sure our customers feel supported, cared for, and confident in their journey, and it’s wonderful to know that this has been your experience.
Thank you again for being part of the Prolon community. We’re truly grateful to have you with us.
Somehow
Somehow, a different account was created for me under my husband's email (who does not order proton). I didn't;t realize I had created a subscription because when I go to my account it does not show the last two orders. I only knew I was getting an order because my credit card was charged. I cannot modify my account or merge the two accounts for accuracy.
April 7, 2026
Reply from Prolonlife
Hi Rebecca,
Thank you for taking the time to share your experience. We truly value your feedback and are committed to ensuring you have the best possible experience with ProLon.
We’re sorry to hear about the confusion regarding the account and subscription, and we sincerely apologize for any inconvenience or frustration this situation may have caused. We understand how concerning it can be to see unexpected charges or orders, and we appreciate you bringing this to our attention.
Our Customer Service Team has already reached out to you directly via email from customerservice@l-nutra.com to help review the accounts involved, clarify what may have happened, and work with you toward a resolution.
Your satisfaction is very important to us, and we are dedicated to making your experience as smooth and positive as possible.
We look forward to your response and the opportunity to support you further.
I love the products, but...
I love the products, but the emails are not carefully worded. I kept getting emails saying to expect my delivery of Prolon foods today. What it actually meant was, that my order was being processed today. So I had to pay extra for expedited shipping. When you get fired up to start a fast, you want it to be on time 🙂
April 6, 2026
Reply from Prolonlife
Hi Julie,
Thank you for taking the time to share your experience. We truly value your feedback and are committed to ensuring you have the best possible experience with Prolon.
We’re glad to hear that you love the products, and we sincerely apologize for any inconvenience or frustration caused by the wording of the delivery emails. We understand how important timing can be when you’re preparing to start a fast, and we appreciate you bringing this to our attention.
Our Customer Service Team has already reached out to you directly via email from customerservice@l-nutra.com to help address and clarify your concerns and work with you toward a resolution.
Your satisfaction is very important to us, and we are dedicated to making your experience as smooth and positive as possible. We look forward to your response and the opportunity to support you further.
THIS IS GREAT PRODUCT
THIS IS GREAT PRODUCT, ESPECIALLY WHEN I GET IT ON SALE. IT’S THE ONLY FASTING PROUCT I USE BECAUSE IT TASTS GOOD AND IS EASY TO USE.
April 7, 2026
Reply from Prolonlife
Hi Elizabeth,
Thank you for taking the time to share your experience with us! We’re so glad to hear that you’ve been enjoying the program and that it’s become your go-to fasting product.
It’s wonderful to know that you find the products both easy to use and enjoyable in taste, as our team works hard to create a program that is both effective and approachable.
We truly appreciate your support and are grateful to have you as part of the Prolon community.
Beyond expectations!
The "food" is delicious! The customer service is wonderful! I would never be able to do a water only fast. This program gave me the will power to get through a full 5 day fast! I am diabetic and this program kept my numbers in the green all five days! This has not happened in years. I am so grateful for ProLon.
April 6, 2026
Unprompted review
Reply from Prolonlife
Hi Cassie,
Thank you so much for sharing your experience with us. We’re truly glad to hear that you enjoyed the foods included in the program and that our customer service team was able to support you along the way.
It’s also wonderful to hear that the program helped you complete a full 5-day fast in a way that felt achievable compared to a water-only fast. Many people appreciate having the structure and nourishment that the program provides during those five days.
We especially appreciate you sharing your experience managing your blood glucose during the program. While individual results can vary, we’re grateful that the program has been a positive part of your health journey.
Thank you again for your kind words and for being part of the Prolon community.
You keep charging my bank account for…
You keep charging my bank account for products I have'nt ordered and a subscription I never authorized. furthermore I can not reach a human being to talk to when I try to contact you.
April 7, 2026
Reply from Prolonlife
Hi Fernando,
Thank you for taking the time to share your experience. We truly value your feedback and sincerely apologize for the frustration this situation has caused.
Our Customer Service Team has already reached out to you directly via email from customerservice@l-nutra.com to help review your account and address your concerns regarding the subscription and charges.
We understand how important it is to be able to quickly connect with support, and we are committed to working with you to clarify what happened and find the best possible resolution.
Your satisfaction is very important to us, and we look forward to hearing back from you so we can assist further.
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