After three rounds of Prolon I have seen some significant changes in my cravings, metabolism, aches and pains, and mental clarity. They have lasted now another 2 months. It’s not a super easy diet, b... Vis mer
Selskapet har svart
Vi bekrefter ikke spesifikke uttalelser siden en forfatters mening er hens egen, men vi kan merke en anmeldelse som "bekreftet" når vi kan bekrefte at det har vært kontakt med virksomheten. Mer informasjon
For å beskytte plattformens integritet vil alle anmeldelser på plattformen—bekreftet eller ikke—bli undersøkt av vår automatiserte programvare (tilgjengelig hele døgnet). Denne teknologien er designet til å identifisere og fjerne innhold som bryter med retningslinjene våre, deriblant anmeldelser som ikke er basert på en faktisk erfaring. Vi vet at vi ikke kan fange opp alt. Hvis du tror at vi har gått glipp av noe, kan du rapportere det. Mer informasjon
Se hva andre synes
My goal was to order one five day reset yet when the time to check out came Prolon had secretively-WITHOUT MY PERMISSION-sigened me up for what would amount to a LIFETIME SUBSCRIPTION which took me te... Vis mer
Selskapet har svart
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... Vis mer
Selskapet har svart
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... Vis mer
Selskapet har svart
Informasjon om virksomheten
Skrevet av virksomheten
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.
Kontaktopplysninger
4,1
Bra
10k anmeldelser
Ber kundene om å skrive anmeldelser
Denne virksomheten oppfordrer kundene til å skrive anmeldelser, enten positive eller negative
På Trustpilot legger vi vekt på bidrag fra faktiske personer. Denne virksomheten kan imidlertid også bruke KI-verktøyet vårt til å lage utkast til svarene de gir.
Slik bruker virksomheten Trustpilot
Se hvordan anmeldelsene og vurderingene deres innhentes, vurderes og modereres.
Great product love the new organic…
Great product love the new organic option get rid of the toxic tea bags. Would love an option to purchase à la carte soups and lprotein bars
6. april 2026
Svar fra Prolonlife
Hi Diane,
Thank you so much for your kind feedback. We’re really glad to hear you’re enjoying the product and the new organic option!
We also appreciate your thoughtful comment about the tea bags. We’re happy to share more information for transparency: our filter tea bags are made from a blend of natural wood pulp and abaca plant fiber, are oxygen-bleached (no chemicals are used in the sanitizing process), and are completely free from plastics and plasticizers.
They are also FDA-, USDA-, and NOP-approved, as well as biodegradable and compostable. In some cases, slight discoloration can occur in flavored blends due to natural citrus-based flavor absorption in the filter material.
Regarding your interest in purchasing items à la carte, such as soups and L-Protein bars, we truly appreciate the suggestion and will be sharing this feedback with our team for future consideration.
We also want to gently share that the reason we recommend following the program as designed is because the Fasting Mimicking Diet was developed based on extensive research. The specific combination of macronutrients, micronutrients, and ingredients across each of the 5 days is carefully calibrated to avoid strongly activating nutrient-sensing pathways, which is what allows the body to enter the fasting-mimicking state while still receiving nourishment.
For this reason, any modifications to the program are generally not recommended, as the clinical benefits observed were based on adherence to the full protocol as studied.
Thank you again for your support and thoughtful suggestions. We truly appreciate it. If you have any other questions, we’re always here to help.
Highly Recommend!
We were pleasantly surprised! We’ve been completing prolonged fasts for years, but we felt miserable and lacked energy during the process and for days afterward. We loved the boost of energy we had during and after the 5-day FMD and how easy the meals were to prepare! We really liked how we were actually able to consume food for all 3 meals a day plus snacks! The best part of our experience has been their customer service who exceeded our expectations. Thank you!
14. april 2026
Svar fra Prolonlife
Hi Karen,
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 situation might have caused you.
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 my fourth order from Prolon
This is my fourth order from Prolon. The program is easy to follow and has wonderful results. I had more energy and felt reset.
14. april 2026
Svar fra Prolonlife
Hi Marie,
Thank you so much for your continued trust in Prolon, it truly means a lot to us that this is your fourth order.
We’re so glad to hear that you find the program easy to follow and that you’re experiencing such positive results. Feeling more energized and “reset” is something many people notice, and it’s wonderful to hear that reflected in your experience.
We’re grateful to be a part of your wellness routine and are here to support you every step of the way.
I have tried to cancel this 3 times
I have tried to cancel this 3 times. I am in middle of brain cancer treatment and don't have time to deal with this staff ( 1 want to say crap because it's just one more thing) it will be returned immediately. The company responded wonderfully and have canceled my subscription and we’re able to stop the shipment before I had to return it. I was very grateful.
14. april 2026
Svar fra Prolonlife
Hi Joy,
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.
I’m very sorry to hear about what you’re going through, and I completely understand how frustrating and overwhelming this situation must feel. We sincerely apologize for the inconvenience this has caused you.
We understand that it can be confusing or easy to
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 as quickly as possible.
Your satisfaction is very important to us, and we are dedicated to making this process as smooth and stress-free as we can for you.
We look forward to your response and the opportunity to support you further.
Svar fra Prolonlife
Hi Heather,
Thank you for taking the time to share your experience. We truly value your feedback.
I’m very sorry to hear that canceling your subscription felt difficult, that’s certainly not the experience we want for you, and I understand how frustrating that can be.
Our Customer Service Team is here to help and has reached out from customerservice@l-nutra.com to assist with your request and make sure everything is resolved as quickly and smoothly as possible.
For reference, subscriptions can also be managed directly through your customer portal, where you have the option to cancel at any time. That said, we understand this process may not always feel straightforward, and we truly appreciate you bringing this to our attention so we can continue improving.
Your experience is very important to us, and we’re here to support you every step of the way.
5 stars
I do like the next generation 5 day plan. They used to give a sports bottle, but I guess they stopped doing that it was convenient for this plan, but definitely make sure you have a bottle you can mix with before your program. The prolonlife.com website needs some repairs. The website kept crashing on me and the Prolon recommendations quiz does not work. If I was a first time customer I would have never ordered from the website because the site crashing multiple times, but because I’m not a first time customer and I have had a great experience multiple times I must give a 5 star review because I have had a great experience multiple times. Aside from the current state of the website it’s a 5 star experience for me.
14. april 2026
Svar fra Prolonlife
Hi Dino,
Thank you so much for taking the time to share your experience, and for your continued trust in Prolon. It truly means a lot to us that you’ve had such positive experiences over time.
We’re really glad to hear you’re enjoying the Next Generation 5-day program. We also appreciate your note about the bottle, that’s great feedback, and we understand how helpful it was for mixing during the program.
I’m very sorry to hear about the issues you experienced with the website. That’s definitely not the experience we want for anyone, especially for new customers, and we truly appreciate you bringing this to our attention. Your feedback regarding the site crashing and the quiz not working is incredibly valuable, and we’ve shared this with our team so it can be reviewed and improved.
We’re grateful that your overall experience with the program has been a positive one, and we appreciate your patience as we continue to improve all aspects of the experience.
If there’s anything we can support you with, please don’t hesitate to reach out. We’re here for you.
Superb Product and Service
I love the Prolon fasting mimic kits. I needed some replacement product and you folks were great, I eagerly await my shipment so I can do the 5 day fast. I feel so good when I use those fasts.
10. april 2026
Svar fra Prolonlife
Hi Barbara,
Thank you so much for your kind words, we truly appreciate you taking the time to share your experience with us.
We’re so glad to hear how much you enjoy the Prolon program and that you’re feeling great when you complete your fasts, that’s wonderful to hear. It also means a lot to know that your experience with our team was a positive one while getting your replacement items.
We’re excited for you to start your next 5-day cycle and are here to support you every step of the way.
If you ever have any questions or need anything at all, please don’t hesitate to reach out.
I wanted to do express shipping
I wanted to do express shipping - and was charged $10 twice and have duplicate items.
It’s fine I will use them but the extra $10 is wrong and my discount code as a new customer didn’t work.
14. april 2026
Svar fra Prolonlife
Hi Darlene,
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 caused by the duplicate charges, items, and the issue with your discount code.
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 my 3rd time doing the 5 day…
This is my 3rd time doing the 5 day prolon fast. Excited to cleanup the cellular junk!
14. april 2026
Svar fra Prolonlife
Hi Kaleb,
Thank you so much for sharing this. We love hearing from returning customers!
It’s great to hear you’re heading into your third round with that mindset. Supporting the body’s natural “clean-up” and renewal processes is such a powerful part of the experience, and it’s wonderful that you’re excited about it.
We’re here to support you every step of the way, wishing you a smooth and rewarding cycle ahead!
Svar fra 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 fra 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
Anmeldelse skrevet uten oppfordring
Svar fra 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 fra 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 fra 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 fra 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. januar 2026
Svar fra 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 fra 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 fra 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 fra 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 fra 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.
Dette er Trustpilot
Alle kan gi tilbakemelding på Trustpilot. De som skriver en anmeldelse, har rett til når som helst å redigere og slette den. Enhver publiserte anmeldelse er synlig så lenge en tilknyttet konto er aktiv.
Vi har et eget team og smart teknologi som beskytter plattformen vår. Finn ut hvordan vi motvirker falske anmeldelser.
Lær om anmeldelsesprosessen på Trustpilot.
Verifisering kan bidra til å sørge for at anmeldelsene du leser på Trustpilot, er skrevet av faktiske personer.
Det kan gi en skjev TrustScore å tilby belønning for eller be bare enkelte kunder om å skrive en anmeldelse, og dette går imot retningslinjene våre.