The registered dietitian working with me is so compassionate and helpful. She is very knowledgeable and individualizes the resources she gives me
Response from L-Nutra HealthJan 14, 2026
Hi Tambra,
Thank you so much for your kind feedback!
We’re happy to hear that your registered dietitian has been compassionate, knowledgeable, and able to tailor resources to your individual needs. Your experience and satisfaction mean a lot to us!
Please don't hesitate to reach out if you ever have any questions, we are happy to support you.
KB
K.B.
Great personnel; food, not so much
The support people were great. The food? It was very repetitive, and, for me, caused some gastric stress. the food was not a sustainable feature for me, especially long term. I also don’t feel the plan addresses the social aspect of eating (a meal)—especially with others. It’s hard to connect with your coworkers, and especially your spouse and/or family over a meal if you’re fasting.
Response from L-Nutra HealthJan 7, 2026
Hi Kevin,
Thank you so much for sharing your feedback! We’re glad to hear that our support team was able to provide you with a positive experience, and we truly appreciate your honesty regarding the food and social aspects of the program.
We understand that fasting can make social meals and long-term adherence challenging, and we’ve shared your feedback with our product development team to be considered for future improvements.
Regarding the gastric stress, Prolon is a plant-based, fiber-rich program, and any significant dietary change, including increased fiber, can sometimes lead to mild bloating, cramping, gassiness, constipation, or diarrhea.
Pre-clinical studies with fasting-mimicking programs have also shown positive changes in the microbiome, such as reduced intestinal inflammation and the growth of beneficial bacteria like Lactobacillaceae and Bifidobacteriaceae, which may contribute to these temporary symptoms. Typically, these effects are short-lived and resolve once you return to your regular diet.
Prolon was designed to mitigate some of the negative side effects of long water fasting, like dehydration, muscle loss, hypoglycemia, and nutrient deficiencies, while still supporting the benefits of fasting, including autophagy.
The program provides a carefully formulated combination of micro- and macronutrients to nourish the body during this rejuvenating process. Some key ingredients include:
Nuts: Heart-healthy monounsaturated fats
Olives: Monounsaturated fats and antioxidants
Flax seeds: Omega-3s, fiber, and essential nutrients
Vegetables: Vitamins, minerals, and fiber
Lentils: Protein, fiber, and nutrients
Spices: Flavor plus potential anti-inflammatory benefits
Prebiotic fiber: Supports gut health and beneficial bacteria growth
For more on the research behind FMD and its impact on metabolic and aging markers, you can check out this study: FMD Effects on Risk Factors & Aging
We truly appreciate your feedback and are happy to support you as you continue your wellness journey.
RO
Rob
I appreciate the guidance received to…
I appreciate the guidance received to achieve my goals
Response from L-Nutra HealthJan 7, 2026
Hi Rob,
Thank you so much for sharing your experience! We’re thrilled to hear that the guidance you received has helped support your goals. It’s our mission to provide support, education, and resources that empower you on your wellness journey.
We’re honored to be part of your journey and look forward to continuing to support you as you achieve your health goals!
CA
Catherine
I like the structure and it is very…
I like the structure and it is very helpful to have someone to coach me.
Response from L-Nutra HealthJan 7, 2026
Hi Catherine,
Thank you so much for sharing! We’re glad to hear that the structure of the program and having a coach have been helpful for you.
Support and guidance can make a big difference, and we’re happy to be part of your journey. Please don’t hesitate to reach out as you continue. We’re here to support you every step of the way
DB
Donna B.
It’s difficult to find the product…
It’s difficult to find the product page. Once found it’s easy to navigate.
Response from L-Nutra HealthJan 7, 2026
Hi Donna,
Thank you for sharing your feedback with us, this helps us improve and guide others.
We’re happy to hear that the website was easy to navigate after the first step on the product page.
We’ve shared your comment about the difficulties you faced on the product page with our team so they can evaluate it and make the necessary adjustments.
We’re glad to have been able to assist you and to be part of your wellness journey.
MH
Myrna H.
So far the experience has been good
So far the experience has been good. Fasting for 5 days has been challenging as I was getting hungry in between meals. I’m getting ready to do my third fast. My dietitian support is very helpful
Response from L-Nutra HealthJan 21, 2026
Hi Myrna,
Thank you for sharing your experience! It’s great to hear that you’re finding your Prolon journey worthwhile.
Even with the challenges of hunger between meals, many people experience the same, especially during the first few days.
We’re excited to hear that your dietitian support has been helpful; having guidance can make a big difference in staying on track and navigating any difficulties.
If you’d like, we can share some tips to help ease hunger or enhance your overall experience during the fast, including small adjustments to meal timing, hydration strategies, and optional ways to make certain foods more satisfying.
Our goal is to make each 5-day fast as smooth and effective as possible.
We’re here to support you every step of the way and look forward to hearing about your third fast!
RF
Ronnie F.
The Fasting Mimicking Diet is an amazing way to reduce insulin resistance.
The Fasting Mimicking Diet is an amazing innovation, and I'm very grateful for it. I was purchasing the low-glycemic kits because I like to eat more keto and wasn't comfortable with the glucose spikes I was getting from the regular Prolon kits. I did not sign up for any of the programs because my bloodwork is fully covered by my HMO, and I am trying to minimize blood draws. It would be great if you made it easier for people who just want to purchase the low-glycemic version of the FMD. It was so successful that my insulin resistance is much less, so I don't get such marked glucose spikes from the regular Prolon FMD kits, so I've gone back to those exclusively.
Response from L-Nutra HealthJan 21, 2026
Hi Ronnie,
Thank you so much for sharing your experience! We’re excited to hear that the Fasting Mimicking Diet has been so effective for you and that it helped reduce your insulin resistance, that’s wonderful progress.
We completely understand your feedback about making the low-glycemic kits easier to purchase separately.
Your input is valuable, and we’ve shared it with our team to explore ways to improve accessibility for those who want a more tailored approach.
It’s great to hear that you’ve been able to return to the regular Prolon kits with confidence, now that your glucose response is more stable. Your journey is a fantastic example of how people can use the FMD flexibly to support their health goals.
Thank you again for your thoughtful feedback and for being part of the Prolon community!
MO
Molly
Science-backed program with great folks
Love the fact the program is based on scientific studies. Great group of people working at L-Nutra - professional, personable and knowledgeable. I enjoy the quarterly group meetings to share information and the more frequent meetings with the nutritionist. Getting great tips and encouragement.
Response from L-Nutra HealthJan 19, 2026
Hi Molly,
Thank you so much for your thoughtful feedback! We’re thrilled to hear that you value the strong scientific foundation behind the program and that your experiences with the L-Nutra team have been positive.
It’s wonderful to know you’re enjoying the quarterly group meetings and the regular check-ins with your nutritionist, those connections, shared insights, and ongoing encouragement are such an important part of the journey.
We’re grateful for your trust and for you being part of the L-Nutra community.