Prolonged shakes are terrific! I enjoy the berry flavor and add fresh berries often. My energy is sustained through the AM including days I go to 45 minute reformer Pilates class and/or the gym. I... Toon meer
Bedrijf heeft geantwoord
We verifiëren geen specifieke claims omdat reviewers hun eigen mening mogen geven. We kunnen reviews echter wel als 'Geverifieerd' bestempelen als we bevestiging hebben dat er een zakelijke interactie heeft plaatsgevonden. Meer informatie
Om de integriteit van het platform te beschermen, wordt elke review op ons platform – al dan niet geverifieerd – gescreend door onze geautomatiseerde software. Deze software kan inhoud identificeren en verwijderen die in strijd is met onze richtlijnen, inclusief reviews die niet zijn gebaseerd op een echte ervaring. We zijn ons ervan bewust dat we weleens wat over het hoofd zien, dus je kunt altijd reviews rapporteren waarvan je denkt dat we ze hebben gemist Meer informatie
Lees wat reviewers zeggen
I have done this fast 4 times. The good side is I have lost 4-5 lbs each time, the bad side is it’s truly hell and not because you’re suffering from hunger, but because the taste is so intolerable.... Toon meer
Bedrijf heeft geantwoord
I've used this program several times and have had great success. It's also gotten easier with each fast. Thank you to the Prolon Team for helping me reach my goals in achieving better optimal health.... Toon meer
Bedrijf heeft geantwoord
I never thought I could do a 5 day, even modified fast, but the kit makes it extremely easy, and amazingly I did not feel deprived. The snacks are actually tasty, small, but savorable. I did the soups... Toon meer
Bedrijf heeft geantwoord
Bedrijfsgegevens
Geschreven door het bedrijf
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.
Contactgegevens
Verenigde Staten
- prolonlife.com
4,1
Goed
10K reviews
Vraagt klanten om een review
Dit bedrijf nodigt klanten uit om een review achter te laten. Deze mag zowel positief als negatief zijn.
Bij Trustpilot draait alles om menselijke content. Dit bedrijf kan echter ook onze AI-ondersteunde tool gebruiken die ze helpt bij het schrijven van hun reacties.
Zo gebruikt dit bedrijf Trustpilot
Ontdek hoe ze hun reviews verzamelen, beoordelen en modereren.
I didn't order anything
Incredible service, quick response and a very client friendly resolution, was extremely impressed.
10 mei 2026
Antwoord van Prolonlife
Hi Alex,
Thank you so much for your kind feedback. We’re really happy to hear that you experienced quick, supportive service and a resolution that felt smooth and client friendly.
We appreciate you taking the time to share this, and we’re grateful for your support. Please don’t hesitate to reach out if you ever need anything. We’re here for you.
I have been a customer of ProLon…
I have been a customer of ProLon products for quite some time and they are always amazing
The products are top quality and you are never disappointed
They are delivered on time as stated I will continue to use their products
11 mei 2026
Antwoord van Prolonlife
Hi Janice,
Thank you so much for your kind feedback. We’re truly happy to hear that you’ve had a consistently positive experience with Prolon over time.
It means a lot to know you find the products high quality, reliable, and delivered as expected. We really appreciate your continued trust and support.
Please don’t hesitate to reach out if you ever need anything. We’re here for you.
I use the reset once per month to help…
I use the reset once per month to help manage my weight loss
11 mei 2026
Antwoord van Prolonlife
Hi Karen,
Thank you so much for sharing that with us. We’re really glad to hear that you’ve found the Reset helpful as part of your monthly routine for supporting your weight management goals.
It’s great to see you incorporating it consistently in a way that works for you, and we truly appreciate your continued trust and support.
Please don’t hesitate to reach out if you ever need anything. We’re here for you.
I’ve done 11 or 12 Prolon 5 day fasts…
I’ve done 11 or 12 Prolon 5 day fasts and my biological age is now 14 years younger (per Function Heath)!
11 mei 2026
Antwoord van Prolonlife
Hi Laura,
That’s incredible to hear, thank you for sharing your experience with us.
We’re so glad to know you’ve been consistently incorporating Prolon into your routine and that you’re seeing meaningful results reflected in your biological age through Function Health. It’s really rewarding to hear how you’ve stayed committed over time and made it part of your long-term wellness approach.
We truly appreciate your continued trust and support, and we’re honored to be part of your health journey.
If you ever have questions or want support along the way, don’t hesitate to reach out. We’re here for you.
I do not want this product
I do not want this product! What don’t you understand??? Stop sending me boxes and charging my card. I will have to report your company to a fraud bureau
6 mei 2026
Antwoord van Prolonlife
Hi Sherry,
Thank you for providing your feedback and for allowing us to assist you.
We completely understand that subscriptions can sometimes be forgotten or overlooked, and we understand how frustrating it can feel to receive a product or charge you were not expecting.
We noticed that one of our Customer Service team members was able to diligently contact you and identify the reason behind the challenges you were experiencing. We’re happy to see that we were able to support you and provide a resolution in a timely manner.
Please don’t hesitate to reach out if you ever have any further questions or concerns at customerservice@l-nutra.com. We are always here to support you and ensure we continue improving your experience.
Also, thank you for your trust in Prolon. We’re truly happy to be part of your wellness journey.
The program was easy to follow and…
The program was easy to follow and complete. Most of the food was surprisingly tasty. I did not experience excessive hunger. I was, however, a disappointed in the results. I only lost 2 pounds and did not notice any discernable change in my energy.
30 april 2026
Antwoord van Prolonlife
Hi Sally,
Thank you for taking the time to share your experience.
We’re very happy to hear that you found the program easy to follow and complete, that most of the foods were surprisingly tasty, and that you did not experience excessive hunger during your round. At the same time, we completely understand your disappointment regarding the results and not noticing the level of changes you were hoping for.
Please know that our goal is always to ensure our customers feel supported and satisfied, and we are fully committed to finding the best possible resolution for you. I would really appreciate the opportunity to better understand the challenges you experienced with the program so that we can address them appropriately.
Each person is unique, and weight loss between rounds may vary based on several factors, including stress levels, dietary practices before or after the round, hydration, sleep, activity levels, or even the timing of your cycle. We also often hear from individuals who do not notice weight loss or changes until well after their round is completed.
It’s also important to note that the primary benefits of the 5-day Prolon fast are centered around cellular rejuvenation and metabolic support, while weight loss is considered a beneficial side effect. So even if you did not experience dramatic weight changes, your body may still have been receiving many of the fasting benefits.
In clinical studies, participants who completed one 5-day ProLon cycle per month for three consecutive months experienced an average weight loss of approximately 5.7–6 pounds by the end of the study, primarily from abdominal fat while helping preserve lean body mass.
Please feel free to reach out to us if you need any further support or if there is anything else we can do for you. You can contact us anytime at customerservice@l-nutra.com or by phone at +1 (888) 926-5370. We are here for you and happy to support you throughout your journey.
Your site sucks it took 9 tries before…
Your site sucks it took 9 tries before I could complete the order.
No support or a number where I can call.
I may just discontinue using this product due to lack of support.
8 mei 2026
Antwoord van Prolonlife
Hi Chandrajeet,
We appreciate your feedback and truly apologize for the frustration you experienced while trying to complete your order.
We understand how discouraging it can be to go through multiple attempts, and we will absolutely use your feedback in the best way possible to help improve and prevent these challenges from occurring in the future.
We also wanted to highlight that if you scroll all the way to the bottom right of our website, you will find under "Get in touch" our email address and phone number, which are the best ways to contact us directly and receive immediate support.
In any case, I also wanted to share the best ways to reach us directly:
Main Prolon Number: +1 (888) 926-5370 also by email at: customerservice@l-nutra.com
We would be more than happy to support you, answer your questions, and help make your purchasing experience as smooth as possible moving forward.
We hope this information is helpful, and please don’t hesitate to reach out if you ever face any additional challenges. We are here to support you.
Would have given a 5 star
Would have given a 5 star, but too expensive , and should have a better mix of soups.
7 mei 2026
Antwoord van Prolonlife
Hi Robbin,
Thank you for sharing your feedback with us. We understand that our program can be a significant investment in your health, and we truly appreciate you taking the time to share your thoughts.
We are committed to enhancing our offerings and making them as cost-effective as possible. We're dedicated to finding ways to ensure this product, based on 20+ years of scientific research, is as accessible as possible so more people can benefit from it. Please also keep an eye out for any promotions we may run in the future.
We also understand your feedback regarding variety. While we always aim to improve taste and diversity, it’s important to note that the soups were specifically designed and carefully formulated to help mitigate the potential adverse effects of intermittent fasting. Our research showed that carefully controlling energy intake and macronutrient composition can extend physiological ketogenesis similar to a water fast, while still providing energy and nutrients to increase fullness and satiety.
We truly appreciate your input and will continue working to improve both the experience and variety offered.
I love your fasting bars
I love your fasting bars. When I do my intermittent fasting, they fill the void.
7 mei 2026
Antwoord van Prolonlife
Hi Pam,
Thank you so much for sharing this with us.
We’re really glad to hear you enjoy the fasting bars and that they’ve been helpful for you during your intermittent fasting routine. It’s great to know they help make things more manageable and satisfying for you.
We truly appreciate your support. If you ever have any questions or need anything along the way, don’t hesitate to reach out. We’re grateful to be part of your wellness routine.
Ordering was easy and my kit is almost…
Ordering was easy and my kit is almost ON THE WAY. The sooner it gets here the better! I can't wait!
Thank you!!
7 mei 2026
Antwoord van Prolonlife
Hi Mary,
Thank you so much for sharing this with us.
We’re really glad to hear the ordering process was easy and that your kit is already on its way, that excitement is great to see!
We truly appreciate your support and enthusiasm. If you ever have any questions or need anything along the way, don’t hesitate to reach out. We’re here for you.
Highly recommend
I just purchased my sixth box of the 5 day FMD. It has been life changing for me, I would highly recommend to anyone interested in improving their health and longevity. This program is a beginner friendly way to integrate a fasting lifestyle into your life.
7 mei 2026
Antwoord van Prolonlife
Hi Laurie,
Thank you so much for sharing this with us.
We’re truly glad to hear that Prolon has been such a meaningful part of your health journey and that you’ve continued with it over time. It’s wonderful to know you’ve found it accessible and supportive as you’ve integrated fasting into your lifestyle.
We really appreciate your recommendation and your continued trust. If you ever have any questions or need anything along the way, don’t hesitate to reach out. We are here to support you.
Feel great!
A have arthritis in my knees and they feel amazing after doing the fast! I thought the food was yummy. Looking forward to doing the fast again!
6 mei 2026
Antwoord van Prolonlife
Hi Andrea,
Thank you so much for sharing your experience with us.
We’re really glad to hear you felt good during and after the fast, and that you enjoyed the food as well. It’s especially meaningful to hear that you’re feeling such a positive difference in your knees, that’s wonderful to know.
We truly appreciate your feedback and your support. If you ever have any questions or need anything along the way, don’t hesitate to reach out. We’re here for you.
they were responsive to concern
I had dropped one of my soups and the assistant helped problem solve with me and sent a replacement
6 mei 2026
Antwoord van Prolonlife
Hi Deb,
Thank you so much for sharing this with us.
We’re really glad to hear our team was able to help you quickly and work with you to replace the soup, that’s exactly the kind of support we aim to provide when unexpected things happen.
We truly appreciate your feedback and your trust in us. If you ever need anything else, don’t hesitate to reach out. We are always here to support you.
Purchasing was easy
6 mei 2026
Antwoord van Prolonlife
Hi Nancy,
Thank you so much for sharing this with us.
We’re really glad to hear that the purchasing process was easy and smooth, that’s exactly the experience we aim to provide.
We truly appreciate your feedback and support. If you ever have any questions or need anything along the way, don’t hesitate to reach out. We’re here for you.
Antwoord van Prolonlife
Hi Brian,
We really appreciate you bringing this to our attention and are sorry to hear that the number of emails felt overwhelming.
You can always unsubscribe from our email list by clicking “Unsubscribe” at the bottom of any email or reply STOP to opt out of text messages.
Please keep in mind that unsubscribing may prevent you from receiving daily fasting tips, encouragement, coaching reminders, or important updates related to webinars and recordings during your program. Our goal is always to keep our customers educated, informed, and supported throughout their journey.
If you would prefer assistance managing your communication preferences, please feel free to contact our Customer Service team at customerservice@l-nutra.com, and we would be happy to help.
The product has produced the results…
The product has produced the results that were promised. Clearer thinking, more energy and we even lost some weight. With the lifestyle change that has occurred, we will certainly lose more. I am glad that our family doctor recommended it.
4 mei 2026
Antwoord van Prolonlife
Hi Scott,
Thank you so much for sharing your experience with us.
We’re really glad to hear that you’ve noticed positive changes like clearer thinking, more energy, and weight loss, and that Prolon has been a meaningful part of your lifestyle shift. It’s also wonderful to know your family doctor recommended it, that kind of support can make a big difference.
We truly appreciate your trust and feedback. If you ever have any questions or need anything along the way, don’t hesitate to reach out. We’re here for you.
The perfect 5 day fast!
After 3 consecutive months doing the 5 day fast we now do it every 3-4
months. Feel so good after and love clean energy we get after the first couple days.
4 mei 2026
Antwoord van Prolonlife
Hi Laura,
Thank you so much for sharing your experience with us.
We’re really glad to hear that after completing three consecutive months, you’ve found a rhythm that works well for you and continues to support how you feel. It’s great to know you’re experiencing that sense of clean energy and overall well-being as you move through the program.
We truly appreciate your continued trust and support. If you ever have any questions or need anything along the way, don’t hesitate to reach out. We’re here for you.
Antwoord van Prolonlife
Hi Kayla,
Thank you so much for sharing this with us.
We’re really glad to hear you had a positive experience and that you’re excited to do another round, that enthusiasm is wonderful to see.
We truly appreciate your support and trust. If you ever have any questions or need anything along the way, don’t hesitate to reach out—we’re here for you.
The 5 day fast is really effective
5 mei 2026
Antwoord van Prolonlife
Hi Jennifer,
Thank you so much for sharing your experience with us.
We’re really glad to hear you found the 5-day program effective and that it’s been a positive part of your wellness routine.
We truly appreciate your feedback and your support. If you ever have any questions or need anything along the way, don’t hesitate to reach out. We’re here for you.
Antwoord van Prolonlife
Hi Robin,
Thank you for sharing your feedback. We’re very sorry to hear that your experience did not meet your expectations.
We take all customer concerns seriously and made multiple attempts to reach out through our support channels to better understand the issue and offer assistance. In addition, a member of our management team also reached out directly in an effort to help resolve the situation.
Unfortunately, we did not receive a response to our outreach. We always aim to support our customers and provide timely resolutions whenever concerns arise, and we remain open to assisting you further if you would like to reconnect with us.
Please feel free to contact us at customerservice@l-nutra.com or Main Prolon Number +18889265370 so, we can help address any outstanding concerns.
We look forward to supporting you, and make this experience a better one for you.
Dit is Trustpilot
Iedereen kan een review op Trustpilot achterlaten n.a.v. een ervaring met een bedrijf. Gebruikers hebben het recht om hun feedback op elk moment te wijzigen of te verwijderen, en elke gepubliceerde review is zichtbaar zolang het account van de betreffende gebruiker actief is.
Wij beveiligen ons platform met behulp van toegewijde specialisten en slimme technologieën. Lees meer over hoe wij nepreviews bestrijden.
Lees meer over Trustpilots reviewproces.
Hier vind je 8 tips voor het schrijven van een goede review.
Verificatie helpt ervoor te zorgen dat echte mensen de reviews schrijven die je op Trustpilot ziet staan.
Beloningen aanbieden voor reviews of een slechts een bepaalde groep mensen vragen om een review te schrijven, kan de TrustScore beïnvloeden. Dit is in strijd met onze richtlijnen.