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
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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
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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
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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
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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.
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Feel Like Superman
I came into this with an open mind, hoping to feel a little less bloated. Not only did the bloating go away, but I also feel way more energized, I'm in a better mood, and I'm much more focused, which is something I really need in my line of work.
I'm actually quite shocked by how good I feel. Days 1 and 2 were hard, Day 3 was better, but by Day 4, I felt like Superman.
15. juli 2026
Svar fra Prolonlife
Hi Jordan,
Thank you so much for sharing your experience! We're excited to hear that not only did your bloating improve, but you also experienced increased energy, better focus, and an improved mood. We especially loved your "felt like Superman" description. It perfectly captures what many people notice as they progress through the program!
It's completely normal for the first couple of days to be the most challenging as your body transitions into the fasting-mimicking state. Hearing that Day 4 was such a turning point for you is incredibly exciting.
Congratulations on completing your first round, and thank you for trusting Prolon to be part of your longevity journey. We can't wait to hear how your future rounds go!
I was not notified prior to charging me…
I was not notified prior to charging me for a reoccurring subscription. I needed to delay due to traveling. Now will need someone to come by my house to pick it up when I will be gone
13. juli 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're sincerely sorry for the inconvenience and frustration this situation has caused, especially with your upcoming travel plans.
Our Customer Care Team has already reached out to you directly via email from customerservice@l-nutra.com to help address your concerns and work with you toward a resolution.
Your satisfaction is very important to us, and we're dedicated to making your experience as smooth and positive as possible. We look forward to hearing from you and having the opportunity to assist you further.
Customer service assisted me in getting…
Customer service assisted me in getting my order! They were very helpful.
13. juli 2026
Svar fra Prolonlife
Hi Kris,
Thank you for taking the time to leave us a review!
We're so happy to hear that our customer support team was able to assist you with your order and provide the help you needed. Delivering a smooth and supportive experience is always our goal.
We truly appreciate your feedback and hope you continue enjoying your Prolon journey!
Very good products and experience
Very good products, clear instructions and explanation of the science behind the FMD, superb coaching and text support on Whatsapp. I did not receive the expected welcome package, but as soon as I emailed support to ask about it, it was on its way. Timely answers to questions on the live coaching Zooms and Whatsapp group. Very good experience.
15. juni 2026
Svar fra Prolonlife
Hi Diane,
Thank you so much for your thoughtful review!
We enjoyed hearing that you enjoyed the products, found the science and instructions easy to follow, and had such a positive experience with our coaching sessions, WhatsApp support, and live Zooms. Our goal is to make every customer feel supported throughout their journey, so it's wonderful to know those resources made a difference.
We're also glad we were able to quickly get your welcome package on its way after you reached out.
Thank you for being part of our community, and we look forward to supporting you again in the future!
Good program but dislike the soups.
I like the program but really dislike the soups. All flavors are not tolerable for me. Wish there was an alternative to soup
13. juli 2026
Svar fra Prolonlife
Hi Melissa,
Thank you so much for sharing your honest feedback. We completely understand that the soups aren't everyone's favorite, and we truly appreciate you taking the time to let us know. Taste is very personal, and we recognize that everyone's preferences are different.
The soups and every item included in the Prolon program were carefully formulated over more than 20 years of research with a specific purpose: to nourish the body while helping it enter the fasting-mimicking state and access the science-backed benefits of the program, including cellular renewal (autophagy), metabolic support, and healthy aging. For that reason, every ingredient and macronutrient profile is intentionally designed to support the fasting response demonstrated in the clinical trials.
That said, we completely understand that enjoying the food is an important part of the experience. Feedback like yours is incredibly valuable, and we'll be sure to share it with our Product Development team as they continue working to improve the program while maintaining the same clinically studied benefits.
Thank you again for giving Prolon a try and for helping us continue to improve. We truly appreciate your feedback and hope you continue to experience the many health benefits the program was designed to deliver.
Coaching Sessions are a Must.
It was great not having to think about what to eat, best of all, avoiding the temptation to go back to old habits for 5 days. Joining the coaching sessions make all the difference, that daily nudge, especially during the last few days kept me going.
Pea protein-based soups were not my favorite, so I chopped up my olives (another non-favorite) and put them into the soup along with any cracker crumbs from the packet. Tomato soup is my hands down favorite!
10. juli 2026
Svar fra Prolonlife
Hi Annette,
Thank you so much for sharing your experience!
We're so happy to hear that the structured meal plan and daily coaching sessions helped you stay on track and avoid slipping back into old habits. Having that extra encouragement, especially during the final days, can truly make a difference, and we're glad it was such a valuable part of your experience.
We also love hearing how you've found ways to enjoy the meals even more! Chopping the olives into the soup and adding the cracker crumbs is such a creative idea, and we're happy to hear the Tomato Soup earned the title of your favorite.
Congratulations on completing your program and thank you for allowing us to be part of your health journey!
Customer representative was (David)…
Customer representative was (David) knowledgeable about the products and the subscription program worked. My questions were answered, we love the products.
10. juli 2026
Svar fra Prolonlife
Hi Norma,
Thank you so much for your kind words!
We're so happy to hear that David was able to answer all of your questions and help you navigate both our products and subscription program. We'll be sure to pass your compliments along to him!
Most importantly, we're so happy to hear that you love the products. Thank you for choosing Prolon, and we look forward to supporting you on your continued longevity journey!
This company has the worst customer…
This company has the worst customer service that I have experienced in years. Be careful if you decide to order from them.
10. juli 2026
Svar fra Prolonlife
Hi Terry, thank you for taking the time to share your feedback. We truly value hearing from our customers and are sorry to hear that your experience did not meet your expectations.
Providing a supportive and positive customer experience is extremely important to us, and we sincerely apologize for any frustration or inconvenience you experienced.
Our Customer Care Team has reached out to you directly via email from customerservice@l-nutra.com so we can better understand what happened, review your concerns, and work with you toward the best possible resolution.
We appreciate the opportunity to address your experience and hope to support you further.
Svar fra Prolonlife
Hi James,
Thank you so much for taking the time to share your kind feedback about Pablo. We’ll be sure to share your message with him. We’re certain it will make him very happy to know that his support made a positive impact.
Our Customer Service team is truly committed to providing the best possible support and guidance, and we appreciate you recognizing the care and dedication they bring to every interaction.
Please don't ever hesitate to reach out if you have any further questions. We are here for you.
Taking a chance and investing in your health
I've done a few water fast before and let me tell you it was extremely hard to get through rewarding yes but hard to get through but the way they lay it out on their Advanced system and the fact that you get to do it for 5 days I even start eating food and liking things that I never liked it like it just woke up my palate so I'm grateful thankful to them and I'm looking to hopefully get some more money to invest in my health and I'd like to get on a regimen where I would do multiple rounds of these every year if not multiples month after month after month thank you guys you really made an impact on my life
15. mai 2026
Svar fra Prolonlife
Hi Ronnie,
Thank you so much for taking the time to share your experience.
We're truly honored to hear that Prolon has had such a meaningful impact on your health journey.
It's wonderful to hear that, compared with your previous water fasts, you found the Prolon program to be a more manageable experience while still feeling rewarding. We also love hearing that it helped you discover new foods and appreciate flavors you hadn't enjoyed before, that's a fantastic outcome!
We're grateful to be part of your wellness journey and are excited to hear you're considering incorporating Prolon into your long-term routine. Many people choose to complete the program monthly, quarterly, or biannually depending on their individual health goals, and we always encourage discussing the best approach with your healthcare provider.
Thank you again for your kind words and for trusting Prolon. We wish you continued success on your longevity journey and look forward to supporting you along the way!
Great customer service
Great customer service. Quick shipping and arrival. Everything tastes great. It totally resets my health journey. Love this company. Thank you for doing what you do. And for doing it with such quality. ☮️♥️😎
29. juni 2026
Svar fra Prolonlife
Hi Lori,
Thank you so much for your wonderful review! We’re truly grateful for your kind words and are delighted to hear that you had a great experience with our customer service, fast shipping, and the quality of the program.
It’s especially rewarding to know that Prolon has helped reset your health journey. Hearing that our products and the care we put into them have made a positive difference means so much to our entire team.
Thank you again for your support and for being part of the Prolon community. We wish you continued success on your longevity and wellness journey!
I excellent customer service. Thank you for the product! wanted to let the company know that I…
I wanted to let the company know that I enjoyed the product. Unfortunately, soon after I got the second batch of products I ended up needing open-heart surgery. Unfortunately, I could not receive the next shipment because the doctor has me on a special diet. So when I saw that my subscription was ready I wrote in and had great emails conversation with Manella. She was so professional and kind and understanding and I really need that right now. When I feel better and I get the doctors OK I'll reach out again. My functional nutritionist recommended this for me. Thank you for the product and thank you for having Manella on your team.
28. juni 2026
Anmeldelse skrevet uten oppfordring
Svar fra Prolonlife
Hi Kathy,
Hi there,
Thank you so much for taking the time to share this with us, and I’m truly sorry to hear about everything you’ve been going through. I hope your recovery from open-heart surgery is going as smoothly as possible.
I’m really glad to hear that you enjoyed the product and that Manuela was able to support you with kindness and care during such a difficult time. I will make sure your kind words are shared with her and the rest of our team, it will mean a lot to her.
Of course, we completely understand your need to pause your subscription while you focus on your health and follow your doctor’s guidance. Your account will remain on hold, and there’s nothing further you need to do right now.
When you’re feeling better and your doctor gives you the green light, we’ll be more than happy to support you again whenever you’re ready.
Wishing you strength and a smooth recovery ahead, and thank you again for your thoughtful message.
I have tried twice now to sign in to…
I have tried twice now to sign in to my subscription but your site says it will send a link and then I never receive it.
26. juni 2026
Svar fra Prolonlife
Hi Lisa,
Thank you for taking the time to share your experience. We sincerely apologize for the frustration you encountered while trying to access your subscription account.
Providing a smooth and reliable experience is very important to us, and we're sorry that this wasn't the case for you.
Our Customer Service team has reached out to you directly via email from customerservice@l-nutra.com to gather a few additional details and help troubleshoot the issue. We look forward to working with you to resolve this as quickly as possible.
Thank you again for bringing this to our attention. We truly appreciate your feedback and hope to have the opportunity to restore your confidence in your experience with Prolon.
Subscription flexibility
I appreciated the flexibility in changing my delivery date for a subscription due to conflicting travel plans.
24. juni 2026
Svar fra Prolonlife
Hi Alex,
Thank you so much for your kind words! We're so glad we could help accommodate your travel plans and make adjusting your subscription as smooth as possible.
Providing flexible, supportive service is always our goal. We truly appreciate you being part of the Prolon community and wish you a wonderful experience with your next order!
This is my second time doing the…
This is my second time doing the Fasting Mimicking Diet and both times have been a great experience. Each day's food is in a separate box with suggestions on how to divide up each meal, but also lets you choose what and when to eat out of each days box. Signing up for the health coaching is a great help to educate and motivate you each day. When you have an issue, there response time and help is 2nd to none. The help transitioning back to a regular diet with some recipes is very helpful.
24. juni 2026
Svar fra Prolonlife
Hi Grace,
Thank you so much for sharing your experience and for choosing to add Prolon to your health routine. We truly appreciate your continued trust in the program.
We’re so glad to hear that you’ve found the structure of the daily boxes helpful and that having the flexibility to choose how to use each day’s meals has worked well for you. It’s also wonderful to hear that the health coaching support has helped keep you educated and motivated throughout your experience.
Your kind words about our support team mean a lot. We’re especially happy to know that the guidance during the program and the transition back to a regular diet has been helpful for you. That’s exactly the kind of support we aim to provide.
Thank you again for taking the time to share this thoughtful feedback, it truly means a lot to our team.
Site is difficult to navigate
Site is difficult to navigate. It is frustrating when ordering one kit, the algorithm puts the request in as an auto renewal.
26. juni 2026
Svar fra Prolonlife
Hi Deborah,
Thank you for taking the time to share your feedback with us, and I’m sorry for the frustration you experienced while navigating the site and placing your order. I understand how confusing it can be when an order defaults to an autorenewal setting when that’s not what you intended.
I also want to gently clarify that the website does clearly outline the difference between a one-time purchase and a subscription before checkout, and the selection is made at the time of ordering. However, we absolutely understand that this can still be missed or feel unclear in the moment, and we’re always working on making that distinction even more visible and user-friendly.
If your subscription was selected by accident, please don’t worry. We’re happy to help review your order and make any adjustments needed. You can contact us anytime at customerservice@l-nutra.com, and our team will take care of you directly.
Thank you again for your feedback and for sharing your experience with us, it genuinely helps us improve.
Love all the support
Love all the support. Coaching sessions are great. Appreciate the FB group. Emails responses are prompt.
I've done 6 rounds in the last 13 months. I received a confirmation of the coaching session for the first round but not any of the others. I had to send an email request for the link
26. juni 2026
Svar fra Prolonlife
Hi Judy,
Thank you so much for taking the time to share your experience, and for your continued trust in completing multiple rounds with Prolon. I’m really glad to hear you’ve found the coaching sessions, email support, and Facebook group helpful.
I also appreciate you bringing the coaching session confirmations to our attention. I’m sorry for the inconsistency you experienced after your first round and for the inconvenience of having to follow up to request the link. I understand how important it is to have those details shared clearly and in a timely way, especially when you’re actively participating in the program.
We’ll make sure this feedback is shared with our team so we can improve the consistency of our coaching communications moving forward.
We truly appreciate your engagement and your commitment over multiple cycles. If there’s ever anything you need or if a session link is missing again, please don’t hesitate to reach out. We’re always here to support you.
Too many emails
I’m looking forward to receiving my order, but I’ve been bombarded with emails and texts AND I’m still getting bombarded with ads!!! I haven’t even received my order yet. You need to refine your online marketing!!!!
24. juni 2026
Svar fra Prolonlife
Hi Carol,
We’re sorry to hear that you’re feeling overwhelmed by the emails, and we truly appreciate your feedback.
The reason we send these emails is to provide helpful information, tips, and guidance so you can get the most out of your ProLon experience, especially before and during your fast. Our goal is always to ensure you feel supported and well-informed throughout your journey.
That said, we completely understand the importance of choice. Every email we send includes an easy option to unsubscribe if you would prefer not to receive these messages. We fully respect your preferences and want to ensure you feel in control of the information you receive.
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.
good principle bad management
So
why exactly am I receiving the fasting bars that I took out from re-order (basically last shipment went unused) and I do not get the fasting shake that was not delivered last time?
This is not acceptable.
25. juni 2026
Svar fra Prolonlife
Hi Paolo,
Thank you for taking the time to share your feedback, and I’m sorry for the frustration this situation has caused. I understand how disappointing it must feel to receive items that don’t align with what you were expecting, especially given your previous delivery concerns.
We take situations like this very seriously and would really like the opportunity to look into your order in detail so we can understand exactly what happened and help resolve it for you as quickly as possible.
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.
I am happy with my experience
The food was very pleasant, the result is wonderful. I am definitely planning to do in 2 more times, and then ones every half a year.
22. juni 2026
Svar fra Prolonlife
Hi Kora,
Thank you so much for taking the time to share your experience. I’m really glad to hear that you found the food pleasant and that you’re happy with the results. That’s wonderful to hear!
It’s especially great to know you’re already planning to repeat the program and incorporate it into your routine moving forward. Staying consistent like that can be a meaningful way to support your long-term goals, and it’s a good reminder of how individual and sustainable this kind of approach can be when it fits well into your lifestyle.
We truly appreciate you sharing your journey with us, and we’re here to support you whenever you decide to continue.
Wishing you continued success as you move forward, and we look forward to being part of your next steps.
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.