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
Företaget har svarat
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
Företaget har svarat
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.
A good easy to follow weight loss tool…
Loved how the program was individually packaged by day and very easy to follow. It really did seem to burn fat as advertised and two months later I have kept off the 5 pounds I lost. I feel it did reset my metabolism, as I struggled to lose weight no matter what I did previously.
14 maj 2026
Svar från Prolonlife
Hi Laura,
Thank you so much for sharing your experience with us. We’re thrilled to hear that you found the program easy to follow and that the daily packaging helped make the experience feel simple and organized throughout your fast.
We’re also very happy to hear that you experienced lasting results and have been able to maintain the weight loss even months later. It’s incredibly encouraging to hear that the program helped you feel more reset after previously struggling to see progress despite your efforts.
Our goal is always to provide a science-backed program that supports metabolic health, wellness, and sustainable habits, so feedback like yours truly means a lot to our team.
Please don’t hesitate to reach out if you ever have any questions or need additional support. We’re here for you.
Website NOT user friendly
Website and making a purchase is very confusing.
I sent a email to customer service and have still not heard by 3 days later.
13 maj 2026
Svar från Prolonlife
Hi Andrew,
Thank you for sharing your feedback with us, and we’re very sorry to hear that the website and purchasing process felt confusing. We completely understand how frustrating that experience can be, especially when you are also waiting for support.
We wanted to mention that our team has attempted to reach you multiple times to assist in resolving your concerns. If there may have been any communication issues or if our responses did not come through successfully, we would highly encourage contacting us directly through any of the channels below so we can better support you.
Main Prolon Number: +1 (888) 926-5370 or customerservice@l-nutra.com
Also, we have shared your comments with our internal team so we can continue improving the website experience and help prevent these types of challenges moving forward. Thank you again for bringing this to our attention.
We truly look forward to supporting you further and helping make your experience smoother. Please don’t hesitate to reach back out. We are here for you.
Svar från Prolonlife
Hi Rosemarie,
Thank you so much for sharing your feedback with us. We’re very happy to hear that your ordering experience went smoothly this time and that everything worked well for you.
We truly appreciate your continued support and are grateful to be part of your wellness journey.
Please don’t hesitate to reach out if you ever have any questions or need additional support. We’re here for you.
Great Taste.
11 maj 2026
Svar från Prolonlife
Hi Raman,
Thank you so much for your feedback. We’re so happy to hear that you enjoyed the taste of the program.
Our team works very hard to create products that are both scientifically designed and enjoyable to incorporate into your wellness journey, so it truly means a lot to hear this.
We’re here whenever you need guidance or support, don’t hesitate to contact us.
Grateful for the box fix
Grateful for the box fix. Just bummed I couldn’t start my fast due to missing box #1.
11 maj 2026
Svar från Prolonlife
Hi Cynthia,
Thank you for sharing your feedback with us. We’re very glad to hear the box issue was resolved, but we’re truly sorry that the missing Box #1 prevented you from starting your fast as planned. We completely understand how disappointing that must have been.
We appreciate your patience as our team worked to make this right, and we’re always here to support you if you need anything further or would like help getting started.
Please don’t hesitate to reach out to us at customerservice@l-nutra.com. We’re here for you.
Smooth process well organized
11 maj 2026
Svar från Prolonlife
Hi John,
Thank you so much for your feedback. We’re very happy to hear that you found the process smooth and well-organized.
We truly appreciate your support and are glad your experience went well. Please don’t hesitate to reach out if you ever need anything. We’re here for you.
Svar från Prolonlife
Hi Denny,
Thank you so much for sharing your feedback. We’re glad to hear you found the process simple and easy to follow.
We truly appreciate your support. Please don’t hesitate to reach out if you ever need anything. We’re here for you.
Started using FMD back in 2018
I started using FMD in 2018 when breast cancer was first found. I used for 6 consecutive months and I found it to be easy and I felt well. I used it every now and then, more to 'clean up my eating' which is easier to do after a 5 day FMD. Once I became metastatic (I'll always wonder if I kept with FMD if I could have avoided that 2nd diagnosis but life if full of 'woulda, coulda, shoulda' questions) I have found that side affects to the infusions are greatly decreased. Now, there are new flavors of soup which I love...and the 1 day fasts which I now do also. I love that I know that I am doing something good...not only for my body, but for my cells! And...it is easy, well researched and well supported with customer service people, texts, videos and FB.
8 april 2026
Omdöme utan inbjudan
Svar från Prolonlife
Hi Mary,
Thank you so much for taking the time to share your experience with us.
We’re truly honored to hear how you’ve incorporated the FMD into your routine over the years and that it has continued to feel supportive, easy to follow, and helpful as part of your wellness practices. It means a great deal to know you’ve also been enjoying the newer soup flavors and the 1-day fast options.
We’re especially grateful for your kind words about the program being well-researched and supported. Our team is deeply committed to providing not only science-backed nutrition, but also ongoing education and support through multiple channels so you feel guided every step of the way.
We appreciate you being part of the community and sharing your journey with us. Please don’t hesitate to reach out if you ever need anything. We’re always here for you.
I didn't order anything
Incredible service, quick response and a very client friendly resolution, was extremely impressed.
10 maj 2026
Svar från 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 maj 2026
Svar från 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 maj 2026
Svar från 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 maj 2026
Svar från 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 maj 2026
Svar från 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
Svar från 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 maj 2026
Svar från 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 maj 2026
Svar från 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 maj 2026
Svar från 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 maj 2026
Svar från 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 maj 2026
Svar från 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 maj 2026
Svar från 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.
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.
Läs mer om omdömesprocessen på Trustpilot.
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Att erbjuda belöningar för omdömen eller att bara be en viss grupp personer att skriva ett omdöme kan påverka företagets TrustScore. Detta strider mot våra riktlinjer.