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
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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
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Just ordered today and it is on its way…
Just ordered today and it is on its way already. I love when the order gets out quickly. It was very easy to pay for the order online.
24 april 2026
Antwoord van Prolonlife
Hi Jeffery,
Thank you so much for sharing this with us.
We’re really happy to hear that your ordering experience was smooth and that your kit is already on its way. Fast, easy checkout and quick delivery are exactly what we aim for, so it’s great to know that came through for you.
We appreciate your support, and we’re here if you need anything as you get started or along the way.
What made my experience a 5-star…Kristie Spurling and her willingness to listen and talk with me about facts, not opinion.
What made my experience a 5-star rating?
Kristie Spurling!!!! My conversation with her totally convinced me this was what I needed to try. She was terrific. No pressure, just fact. Please pass on my sincerest thanks. John Rose
23 april 2026
Antwoord van Prolonlife
Hi John,
Thank you so much for sharing this wonderful feedback.
We’re truly happy to hear that your conversation with Kristie made such a positive impact and helped you feel confident in trying ProLon. It’s great to know she was able to support you in a thoughtful, no-pressure way while providing the information you needed.
We’ll be sure to pass along your kind words and sincere thanks to her, she’ll really appreciate it.
We’re grateful to have you with us, and we’re always here if you need anything along the way.
Great Customer Service
Customer service was very responsive and efficient in replacing my missing item.
23 april 2026
Antwoord van Prolonlife
Hi Jaime,
Thank you so much for sharing your experience with us.
We’re really glad to hear our Customer Service team was able to respond quickly and help resolve the missing item for you efficiently. Making things right in a smooth and timely way is always our goal.
We truly appreciate your support and trust, and we’re here if you ever need anything else along the way.
Antwoord van Prolonlife
Hi Robert,
Thank you for sharing your experience. We’re really glad to hear that.
It’s great to know you’re feeling more energetic while supporting your fat loss goals. Many people notice improvements in how they feel during the program, and we’re happy it’s working well for you.
We appreciate you being part of the journey with us, and we’re here if you ever have any questions or need support going forward.
Antwoord van Prolonlife
Hi Katherine,
Thank you for sharing this!
We know how frustrating delivery issues can be, so we’re really glad our team has been able to stay on top of it and help get your orders to you. We truly appreciate your patience, and we’ll always do our best to make sure your experience is as smooth as possible.
If there’s anything we can do to help with future deliveries, don’t hesitate to reach out. We’re here for you!
USPS can't find my house
USPS can't find my house. Prolon has been persistent in getting my deliveries to me in spite of them.
20 april 2026
Antwoord van Prolonlife
Hi Sandy,
We know how frustrating delivery issues can be, so we’re really glad our team has been able to stay on top of it and help get your orders to you. We truly appreciate your patience, and we’ll always do our best to make sure your experience is as smooth as possible.
If there’s anything we can do to help with future deliveries, don’t hesitate to reach out. We’re here for you!
Already seeing some resilts!
I am seeing some results and I am on Day 3. The food is flavorful. Cannot wait to see what happens in the next few days!
Good phone support and literature!
21 april 2026
Antwoord van Prolonlife
Hi Joyce,
Thank you so much for sharing your experience!
We’re so glad to hear you’re already seeing some results by Day 3, that’s a great place to be in the program. It’s also wonderful to know you’re enjoying the flavors and finding the support and educational materials helpful.
You’re right in the middle of the cycle, where many of the key benefits begin to build, so we’re excited for you as you continue through the next few days.
Please don’t hesitate to reach out if you need anything along the way. We’re here to support you!
Upscale, tasty cleanse
This was a professional, beautifully packaged protocol. The 5 day fast was really not difficult, and although I was afraid the food would be hard to get down, it was actually good. I am in love with the Olives!! I had more energy, my brain was clearer and I lost weight, which does not usually happen easily. Will do this regularly.
22 april 2026
Antwoord van Prolonlife
Hi Shelley,
Thank you so much for sharing your experience!
We’re so happy to hear that the program felt approachable and that you enjoyed the foods, especially the olives, they’re definitely a favorite.
It’s wonderful that you noticed increased energy, mental clarity, and weight loss, especially since you mentioned that doesn’t usually come easily. That kind of feedback means a lot.
We’re excited to support you as you continue incorporating the program into your routine, please don’t hesitate to reach out if you ever need anything along the way!
So far I have had such a great…
So far I have had such a great experience! I got a five day fasting box for myself and my husband. I have reached out to Customer Service for a few things and they have been amazing in response time and conflict resolution. I highly recommend these products and their fasting protocol. I truly was surprised how great the food tasted.
21 april 2026
Review zonder uitnodiging
Antwoord van Prolonlife
Hi LC,
Thank you so much for sharing your experience! It truly means a lot to us.
We’re so happy to hear that both you and your husband have been enjoying the 5-day program together, that kind of shared journey can make the experience even more meaningful. It’s also wonderful to know that our Customer Service team has been able to support you quickly and effectively along the way.
And we love hearing that the food pleasantly surprised you, that’s something we put a lot of care into!
Thank you again for your recommendation and for trusting us to be part of your health journey.
Healthy, Good and Supportive Experience!
Products in the 5 Day Fasting Mimicking Diet are high quality and tasty. The program comes with professional and community support too. I highly recommend the products and program!
26 augustus 2025
Antwoord van Prolonlife
Hi Donna,
Thank you so much for your kind words and recommendation!
We’re delighted to hear that you’re enjoying the quality and taste of the 5-Day Fasting Mimicking Diet, as well as the support that comes with the program. Creating a well-rounded experience, from the products themselves to the guidance and community, is something we care deeply about.
We truly appreciate you taking the time to share your experience.
If you ever have any questions or need anything along your journey, we’re always here for you.
Ordering process not so great, we will see…
I wanted to use my FSA account to purchase this product. There is no link that they say there is in order to do this. When you email customer service, they just keep sending you the same instructions. However, you cannot follow through with the instructions because the link is no longer there. I also feel with the product this expensive, shipping should be included in the price. I did order the product and I’m waiting for it to come in to see if it’s quality.
21 april 2026
Antwoord van Prolonlife
Hi Jacquelyn,
Thank you for taking the time to share your experience, we truly value your feedback.
We sincerely apologize for the frustration and inconvenience you encountered, especially regarding the FSA process and the missing link. We understand how this can be confusing and appreciate you bringing it to our attention.
Our Customer Service Team has reached out to you directly via email from customerservice@l-nutra.com to help clarify the process and work with you toward a resolution. We’re committed to making this as smooth as possible and ensuring you have the guidance needed.
We also appreciate your feedback regarding shipping and will be sure to share it with our team as we continue improving the overall experience.
Your satisfaction is very important to us, and we truly appreciate you giving Prolon a try. We look forward to supporting you further and hope you have a great experience with your order.
Prolon is great
Prolon is so great, I had an issue with the delivery of my package and they gave me an immediate solution. I love the program and will be coming back to it yearly!
18 juni 2025
Antwoord van Prolonlife
Hi Michelle,
Thank you so much for sharing your experience!
We’re really glad we could quickly resolve the delivery issue and that you felt supported throughout the process. It means a lot to hear that you love the program and plan to come back to it.
We truly appreciate your trust and look forward to supporting you again in the future. If you ever need anything along the way, we’re always here for you.
Great follow up after ordering.
21 april 2026
Antwoord van Prolonlife
Hi Nana,
Thank you for your feedback!
We’re really glad to hear you had a positive experience with our follow-up after ordering. Providing timely support and staying connected with our customers is something we truly value.
We appreciate you taking the time to share this, and if you ever need anything, we’re always here for you.
My kit came in good time and was well…
My kit came in good time and was well put together. I appreciate the care with which it’s formulated. Thank you!
13 april 2026
Antwoord van Prolonlife
Hi Gary,
Thank you so much for your kind words. We’re really glad to hear your kit arrived on time and that you appreciate the care put into its formulation. That means a lot to our team.
Please, don't ever hesitate to reach out to us if you ever have any questions along your journey, we’re always here to support you.
My order was missed and you made it…
My order was missed and you made it right immediately. Even on a weekend. Your customer service people are amazing, professional and kind!
Thank you - Kathy
20 april 2026
Antwoord van Prolonlife
Hi Kathy,
We truly appreciate you sharing this. I’m very glad we were able to resolve your order quickly, even over the weekend.
Our team works hard to be responsive and supportive, and it’s wonderful to hear that came through in your experience.
We would be sharing your wonderful feedback with our team!
Your satisfaction is extremely important to us if you ever need support, we’re always here for you.
Thank you for your kindness and quick…
Thank you for your kindness and quick response. You have a great product
20 april 2026
Antwoord van Prolonlife
Hi Michael,
Thank you so much for your kind message. We’re really glad to hear you felt supported and that our team was able to respond quickly.
It means a lot to know you’re enjoying the product as well. If you ever need anything, we’re always here for you.
Prolon
Simple instructions on how to use and it works well for men on belly fat. I’ve lost 10 pounds with 2 rounds and getting ready to start my 3rd round.
20 april 2026
Antwoord van Prolonlife
Hi Roger,
Thank you for sharing your experience. We’re happy to hear you find the instructions simple and that you’re seeing positive results.
It’s especially great to know you’re continuing with your journey.
If you have any questions as you move into your next round, we’re always here to support you.
Prolon is a great product
Prolon is a great product. Really like the bars and the entire program.
20 april 2026
Antwoord van Prolonlife
Hi Carl,
We really appreciate your feedback and your continued support.
It’s wonderful to hear you’re enjoying the program and the bars in particular. Thank you for being part of the Prolon community!
Please, don't hesitate to reach out if at any point you have any questions. We are here for you!
Antwoord van Prolonlife
Hi!
Thank you for sharing your feedback with us. We are truly grateful for your continued trust and support over the years.
We really appreciate you taking the time to share your experience.
If at some point there’s ever anything you need, we’re always here for you.
Convenient and easy to follow.
The diet was easy enough. It was convenient. Did not like the food; was very gassy and did not agree with my sensitive gut. We lost weight but gained it back. Was hungry most of the time.
19 september 2025
Antwoord van Prolonlife
Hi Janet,
Thank you for taking the time to share your experience. we really appreciate your honesty.
I’m sorry to hear that the program didn’t feel like a great fit for you, especially with the digestive discomfort and hunger you experienced. We understand how frustrating that can be, particularly if you have a sensitive gut. Reactions like gas or bloating can sometimes occur due to the increase in fiber and plant-based ingredients, but that doesn’t make it any easier when you’re going through it.
Prolon was created in part to help mitigate some of the challenges associated with water-only fasting, such as dehydration, muscle loss, hypoglycemia, and nutrient deficiencies, while still supporting the body’s fasting processes, including autophagy. The program provides a carefully designed balance of nutrients intended to nourish the body while keeping it in a fasting-like state.
Some of the key ingredients include:
Nuts: rich in heart-healthy monounsaturated fats
Olives: a source of healthy fats and antioxidants
Flax seeds: provide omega-3s, fiber, and essential nutrients
Vegetables: offer vitamins, minerals, and fiber
Lentils: contribute plant-based protein and nutrients
Spices: add flavor and may have anti-inflammatory properties
Prebiotic fiber: supports gut health and beneficial bacteria
There is also research on the Fasting Mimicking Diet showing improvements in markers related to metabolic health, aging, and risk factors such as body weight, blood pressure, and IGF-1 across a wide range of adults.
That said, we completely understand that individual experiences can vary, and your feedback is incredibly valuable to us. If you’re open to it, we’d be happy to explore ways to better support you or discuss whether any adjustments could make the experience more comfortable for you.
We are happy to hear that aside from individual preferences. You found the protocol easy and convenient.
Thank you again for sharing your thoughts. We truly appreciate it.
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