I had been seeing PROLON Fast while online and finally decided to try it. I began my first 5 Day Fast on June 3rd... I ate only what was in each days box and followed the program 100% - didn't... Se mer
Även om vi inte verifierar specifika påståenden eftersom omdömeslämnarnas åsikter är deras egna, kan vi märka omdömen med en ”verifierat”‑etikett ifall vi kan bekräfta att en företagsinteraktion har ägt rum. Läs mer
För att skydda plattformens integritet granskas både verifierade och overifierade omdömen av vår automatiserade programvara som är tillgänglig dygnet runt. Tekniken är utformad för att identifiera och ta bort innehåll som bryter mot våra riktlinjer, inklusive omdömen som inte är baserade på en äkta upplevelse. Vi är medvetna om att vi inte kan lägga märke till allt. Det går att flagga sådant som du tror att vi kan ha missat. Läs mer
Det här tycker kunderna
Not only was the product amazing, but the support was as well. The food (although limited) was delicious and clean. I have been an intermittant faster for years, but could not seem to do any type of m... Se mer
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In a time when virtually no company has real people to talk to, I very much appreciate Prolon's team. Any issues I have had they have immediately gotten back to me with a great response. I have zero... Se mer
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My issue isn’t with ProLon—it’s with Shop. I refuse to give an app broad access to my phone just to track a package. Customers deserve a simple tracking link without signing up. I still haven’t a clue... Se mer
Företaget har svarat
Företagsinformation
Skrivet av företaget
Prolon is a science-driven nutrition brand focused on supporting healthy aging and longevity through evidence-based nutritional programs. Its flagship product, the Prolon 5-Day Diet, is a patented Fasting Mimicking Diet (FMD) developed from more than 25 years of research and 40+ published clinical studies conducted in collaboration with USC, Mayo Clinic, and Stanford, to help the body enter a fasting-like state while still providing carefully formulated nourishment that supports natural cellular renewal. The 5-Day Diet is a complete, pre-packaged nutrition program that includes portioned meals, snacks, and beverages for each day, making the experience simple to follow without calorie counting or meal planning. Clinical research published in peer-reviewed journals, including Nature Communications, found that participants completing three consecutive monthly cycles experienced an average 2.5-year reduction in biological age markers, while also supporting healthy metabolism, preserving lean muscle, and promoting fat loss. But the 5-Day Diet is only the beginning. The same decades of longevity research that gave rise to the FMD also informed Prolon's broader ecosystem of science-backed products designed for everyday life. This includes L-Biome, a precision probiotic formulated to support gut health and metabolic function; fast bars, developed to extend the fasting state between meals; nutrition shakes built around longevity-supporting protein ratios; and guided reset programs that combine multiple Prolon products into structured, longer-term health protocols. Every product in the Prolon line shares the same origin, rigorous peer-reviewed science, and the same goal: to give your body what it needs to function better for longer. Founded on the belief that nutrition should be grounded in rigorous scientific research rather than trends, Prolon develops all of its products using a research-first approach. Prolon is part of L-Nutra, a nutrition technology company dedicated to advancing evidence-based nutrition for healthy aging and longevity. Our mission is to make cutting-edge longevity science accessible to everyone because how you age is not simply something that happens to you. It is something you can actively shape.
Kontaktuppgifter
4,1
Bra
10 tn omdömen
Ber kunder att lämna omdömen
Detta företag bjuder in sina kunder att lämna omdömen – oavsett om de är positiva eller negativa
Innehåll från riktiga människor är i fokus på Trustpilot. Det här företaget kan dock även använda vårt AI-verktyg för att skriva sina svar.
Så använder företaget Trustpilot
Se hur deras omdömen och betyg hämtas, betygsätts och modereras.
The cell rejuvenation was apparent when…
The cell rejuvenation was apparent when I exercised the week after my fast. I was able to tackle jogging a hill this I was only able to walk up the weeks before.
14 april 2026
Svar från Prolonlife
Hi John,
Thank you so much for sharing this, we love hearing about moments like that!
It’s amazing to see how your body responded after the program, especially noticing that kind of improvement in your endurance and strength. Experiences like this are a great reflection of the deeper cellular and metabolic shifts that can happen during the fast.
We’re so glad to hear you’re feeling the benefits in such a tangible way, being able to go from walking to jogging that hill is a huge win!
Thank you again for sharing your experience, and we’re here to support you whenever you’re ready for your next round.
Svar från Prolonlife
Hi Lisa,
Thank you so much for your kind words! We’re so glad to hear you had a great experience with our team. We work very hard to provide you with access to all the tools you need to succeed.
Supporting you whenever you need us is truly important to us.
Please don’t hesitate to reach out anytime. We’re always here for you!
Great program
Great program. Didn’t have cravings. Planning to cycle this program throughout the year.
30 november 2025
Svar från Prolonlife
Hi River,
Thank you for sharing your experience! We’re so happy to hear the program felt smooth and helped reduce cravings, that’s such a big win.
It’s great that you’re planning to cycle it throughout the year, and we’re here to support you every step of the way!
I had my 5-Day Prolon shipped to a…
I had my 5-Day Prolon shipped to a delivery point because I’ve had packages stolen from my doorstep at my previous apartment.
Since I travel for work I thought I could get it the week I came home from my trip but I immediately faced a family emergency. Time went by quick and my shipment was returned to Prolon.
I reached out to Prolon’s customer service through email and told them of my dilemma and Yessica replied immediately, issued a case number and asked if I would like a replacement or refund. It was quick, painless and easy because I had Onward Protection.
I have had such great results (10-15lbs each time) that I asked for a replacement. Immediately I had an email from Onward saying the shipment is on the way. I am grateful to Prolon and their customer service team for their human interaction and empathy.
10/10 would recommend.
13 april 2026
Omdöme utan inbjudan
Svar från Prolonlife
Hi Popo,
Thank you so much for taking the time to share your experience, it truly means a lot to us.
We’re very sorry to hear about the family emergency you went through, and we’re really glad our team, especially Yessica, was able to support you quickly and make the process as smooth as possible during such a stressful time. Providing that level of care and empathy is something we deeply value.
We’re also so happy to hear that Onward Protection helped make the replacement process quick and seamless, and even more so that you’ve been seeing such great results with the program, that’s incredibly rewarding to hear.
Thank you again for your trust and for your kind recommendation. Please don’t hesitate to reach out if there’s ever anything more, we can do to support you. We’re always here for you.
Mixed results with good progress
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 nausea, with data one and three being particularly difficult. I also struggle with the fish (omega) capsules; the fishy burps and aftertaste were very unpleasant. Given the high price point and the physical intensity of the experience, I don’t see this being sustainable as a regular routine.
13 april 2026
Svar från Prolonlife
Hi Peggy,
Thank you so much for taking the time to share your experience, we truly appreciate your honesty and the effort it took to complete the program.
We’re really glad to hear that you saw meaningful results, including the weight loss over the 5 days, that’s a great outcome.
At the same time, we’re very sorry to hear that the experience felt like a rollercoaster and that symptoms like headaches, nausea, and difficulty with the omega capsules made it challenging.
Headaches and nausea can occur for some individuals during fasting, especially in the first few cycles, as the body transitions metabolically. This can be related to factors like hydration levels, electrolyte shifts, caffeine changes, and the body adapting to a lower caloric intake. Many people find that these symptoms improve in subsequent rounds as the body becomes more accustomed to the process.
Regarding the omega capsules, we completely understand how unpleasant the aftertaste and “fishy burps” can be. Some customers find it helpful to take them with meals, refrigerate them, or take them later in the day to minimize this effect but we recognize that this can still be a barrier for some.
We also hear your concern around sustainability and cost, and we truly value that perspective. Feedback like yours is incredibly important to us as we continue working to improve both the experience and accessibility of the program.
If you feel that we can do anything further for you, we’d be more than happy to support you. Please, don't hesitate to reach out to customerservice@l-nutra.com.
Your feedback is incredibly valuable, and we’ve shared it with our team as we continue to improve.
Thank you again for giving Prolon a try and for sharing your thoughtful insights.
We’re here to support you if you ever decide to explore it again in a way that feels better aligned for you.
Customer service
13 april 2026
Svar från Prolonlife
Hi Andrea,
Thank you so much for your feedback! We’re so happy to hear you had a positive experience with our customer service team.
Supporting you is always our priority. Please don't hesitate to reach out if you have any questions at some point, we are here to support you.
Great product!
This is round 2 for me. I get the Next Gen package, and the food is tasty. Also, the support that Prolon offers - the daily live webinars, and the email you can use to get questions answered realtime, is most appreciated. My inflammation is down, and I've even lost a few pounds. I'm doing round 3 next month.
13 april 2026
Svar från Prolonlife
Hi Judi,
Thank you so much for sharing your experience, we truly appreciate you taking the time to do so!
We’re so glad to hear that you’re enjoying the Next Gen program and finding the meals tasty, that makes such a difference during the 5 days. It’s also wonderful to know that the live webinars and support team have been helpful along the way. Having that real-time guidance can really enhance the experience.
It’s amazing to hear that you’ve noticed improvements in inflammation and some weight loss as well, those are meaningful outcomes. If you continue with your next rounds, you may also benefit from the structure of the Prolon Guided Program, which is designed to support ongoing progress with additional guidance and accountability.
We love that you’re already planning your third round, that consistency can be very powerful.
We’re here to support you every step of the way, and we’re excited for you as you
These are great resets for busy…
These are great resets for busy lifestyles. It’s a simple and straightforward way to fast. I would say it’s important to consult a doctor before fasting. Especially if you have never fasted and may have health problems. But, I have always found this product to be high quality and helpful when I need a reset.
13 januari 2026
Svar från Prolonlife
Hi Amy,
Thank you so much for sharing your experience, we really appreciate your thoughtful perspective.
We’re so glad to hear that Prolon has been a helpful and convenient reset for your busy lifestyle. You’re absolutely right that checking in with a healthcare provider is an important step, especially for those new to fasting.
It means a lot to hear that you’ve found the program high quality and supportive when you need it most. We’re here for you anytime you’re ready for your next reset!
EASY TO USE AND STAY ON TRACK.
8 april 2026
Svar från Prolonlife
Hi Connie,
Thank you so much for your feedback, we love to hear about your experience.
We’re so happy to hear that you found the program easy to use and helpful for staying on track, that’s exactly what we aim to provide.
We’re here to support you every step of the way!
Thank you for the on time delivery of L-Nutra 5 day nutrition
Thank you for the on time delivery of this wonderful opportunity to maintain my health. I am on day 2 of L-Nutra and looking forward to today's mushroom soup - I've not had it before and love mushrooms.
9 april 2026
Svar från Prolonlife
Hi Patricia,
Your feedback is extremely important to us,
We’re so glad your order arrived on time and that you’re enjoying your experience so far. The mushroom soup is a favorite for many. We hope you love it!
Wishing you a smooth and enjoyable rest of your program, and we’re here if you need anything along the way.
Svar från Prolonlife
Hi Logan,
Thank you for taking the time to share your experience. We truly value your feedback and are very sorry for the inconvenience and frustration this has caused.
Our Customer Service Team has already reached out to you directly via email from customerservice@l-nutra.com to help look into this further and work toward a resolution as quickly as possible.
We also wanted to share that, in general, orders typically arrive within 5–10 business days once placed. For shipments going to Hawaii or Alaska, delivery can take up to 3–4 weeks. We do offer an expedited shipping option (UPS 3-business-day shipping plus 1 day processing), though this does not apply to Hawaii or Alaska.
That said, this timing clearly doesn’t align with your experience, and we completely understand your concern. Please rest assured that we are actively working to clarify what may have happened and make this right for you.
Your satisfaction is very important to us, and we’re committed to ensuring you receive the support you need. We look forward to your reply and the opportunity to resolve this for you as soon as possible.
No issues thanks
10 april 2026
Svar från Prolonlife
Hi Georgia,
Thank you for your feedback, we appreciate you taking the time to share.
If there’s ever anything we can do to improve your experience or support you further, please don’t hesitate to reach out. We’re always here to help.
Always a positive experience with…
Always a positive experience with customer service. Product works!
10 april 2026
Svar från Prolonlife
Hi Danmon,
Thank you so much for your kind words!
We’re thrilled to hear that you’ve had consistently positive experiences with both the product and our customer service, that truly means a lot to us.
We’re here to support you anytime!
Easy ordering process.
10 april 2026
Svar från Prolonlife
Thank you so much for your feedback, Laura!
We’re glad to hear that the ordering process was smooth and easy, that’s exactly what we strive for.
We appreciate your support and are here whenever you need us!
The chocolate longevity shake is a…
The chocolate longevity shake is a great way to start my day. It keeps me going until noon.
10 april 2026
Svar från Prolonlife
Hi Marybeth
Thank you so much for sharing this! We’re so happy to hear that the chocolate longevity shake has become a great start to your day and helps keep you satisfied through the morning.
We truly appreciate your support and love having you as part of the Prolon community!
Please don't hesitate to reach out if you have any further questions. We are here for you.
Excellent coaching- love research talks
Excellent coaching- love her morning start with new research. Very respectful to all, lots of patience regarding repeated questions.
10 april 2026
Svar från Prolonlife
Hi Nancy,
Thank you so much for your kind feedback!
We’re so glad to hear you’re enjoying the coaching sessions and research discussions, it’s wonderful to know that the support feels thoughtful and helpful.
We truly appreciate you being part of the experience and are here for you every step of the way!
Dislike that they didn't sent me an…
Dislike that they didn't sent me an email ahead of time before the new shipment, so I could decide if I wanted to change the date, Skip it or cancelled the order. I want to be able to decide before the shipment. I am out of the country and can't receive the package.
10 april 2026
Svar från Prolonlife
Hi Vince,
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 sincerely apologize for the inconvenience and frustration this caused, especially given that you were out of the country and unable to receive your package. We completely understand how important it is to have control over your shipment timing.
We also wanted to clarify that, according to our system, an email notification was sent to the email address on file approximately 4 days before the order was processed, to provide the opportunity to manage, reschedule, skip, or cancel the shipment. That said, we understand that emails can sometimes be missed or not received, and we truly appreciate you bringing this to our attention.
Therefore, our Customer Service Team has already reached out to you directly via email from customerservice@l-nutra.com to help address your concerns and work toward a resolution.
Your satisfaction is very important to us, and we are dedicated to making your experience as smooth and flexible as possible moving forward.
We look forward to your response and the opportunity to support you further.
Easy to order and the product are great!
9 april 2026
Svar från 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!🥰❤️♥️👍🏻❤️♥️🩷❤️♥️
8 april 2026
Svar från 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.
8 april 2026
Svar från 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.
Detta är Trustpilot
Vem som helst får skriva ett omdöme på Trustpilot. Den som skriver ett omdöme äger sitt omdöme och detta innebär att personen i fråga kan redigera eller ta bort sitt omdöme när som helst. Omdömen finns kvar på Trustpilot sålänge omdömeslämnarens konto är aktivt.
Vi skyddar vår plattform med hjälp av dedikerade medarbetare och smart teknologi. Läs mer om hur vi bekämpar falska omdömen.
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