ProLon® España Reviews 

307
•
TrustScore 4 out of 5

3.9

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Company details

  1. Weight Loss Service

About ProLon® España

Written by the company

ProLon® España

Los beneficios de La Dieta de la Imitación del Ayuno™

Cellular Clean-Up

Nettoyage
cellulaire

More Energy

Plus
d’énergie

Healthy Aging

Vieillissement
en bonne santé

Weight Loss

Perte
de poids

ProLon® 5-Day and ProLon® ReSet

Contact info

3.9

Great

TrustScore 4 out of 5

307 reviews

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1-star

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3.9

All reviews

(307)

19 reviews in the last 12 months

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Rated 3 out of 5 stars
ProLon® España logo

Reply from ProLon® España

Dear Oded, thank you for bringing this to our attention. We apologize for any shipping delays. We are constantly committed to providing you with quality service, as your satisfaction is our priority. According to our records, your order has been delivered. If this is not the case, please do not hesitate to contact us at info@prolon.eu.

Customer Care Team

Rated 3 out of 5 stars

I was very

I was very, very hungry and I did not like the meals a lot.

28 June 2026
ProLon® España logo

Reply from ProLon® España

Dear Tara, thank you for your feedback. We are sorry to hear that you are not fully satisfied with your Prolon experience! We are constantly striving to tailor our products to your tastes and offer you a wider range of choices when purchasing. Furthermore, individual responses vary and can be influenced by various factors. If you would like to discuss this with us, please do not hesitate to get in touch; we would be happy to provide useful tips to help you better manage these 5 days.

Customer Care Team

Rated 5 out of 5 stars

Prolon is excellent

I am still fasting. However this is the third time I have used prolon and I will use it again - it is a more gentle way to do this difficult thing!

28 April 2026
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Reply from ProLon® España

Dear Mrs F. Agombar, thank you for sharing your experience with us. We're happy to hear that you're satisfied with your Prolon journey!

Customer Care Team

Rated 1 out of 5 stars

Placed the order on September 5 and I…

Placed the order on September 5 and I haven’t received anything. I’ve written to costumer service and no one answer, they simply stole my money. Do not trust.

I have answered you and haven’t hear from you again. It’s been almost a month. I want my money back, this is disrespectful!

5 September 2025
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Reply from ProLon® España

Dear Jessica, thank you for your feedback. We confirm that we have received your request and replied to you. We apologize again for the issue you encountered with your shipment. We are still waiting for your reply, so as to know if the proposed solution could be work for you.

Customer Care Team

Rated 1 out of 5 stars

The package didn’t arrive and prolon…

The package didn’t arrive and prolon service didn’t answer. No update, no shipment, I’m extremely disappointed

20 April 2025
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Reply from ProLon® España

Dear Anna, thanks for your feedback. We apologize for the delay. On our part, we are committed to offering you a high quality service, as your satisfaction is our main priority. We remind that all orders received during the Easter holidays were processed on the first available working day, so any delays were due to the holiday period. Lastly, we also remind that our Customer Care is active from Monday to Friday, so that all requests received during the weekend are handled on the first available working day. For any needs, do not hesitate to reach out to us again.

Customer Care Team

Rated 5 out of 5 stars

My digestive system is so much better

I am just about to do my second fast with Prolon, and looking forward to it! Since the first fast a month ago, my digestive system has been so much better and my taste buds are completely different. Highly recommended.

30 August 2024
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Reply from ProLon® España

Dear Margaret, thanks for sharing your experience with us. We are happy to hear that you are satisfied with your ProLon journey!

Customer Care Team

Rated 5 out of 5 stars

Excellent quality products

Excellent quality products with detailed information and advice. Very fast delivery, with long best before dates.

26 August 2024
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Reply from ProLon® España

Dear Margaret, thanks for your valuable feedback. Your satisfaction is our main priority!

Customer Care Team

Rated 1 out of 5 stars

No bottle included in the pack this…

No bottle included in the pack this time with the same price??? Not ok.

15 February 2024
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Reply from ProLon® España

Dear Sharon, thanks for your feedback. As already mentioned in private, aware that human health is strongly correlated to the protection of the environment in which we live, we are working to be increasingly sustainable, reducing packaging, using recyclable or recycled sources, and shortening the supply chain by producing in Italy. In particular, with the launch of the new 100% sustainable box and based on suggestions provided by our customers, we give the possibility of adding the new ProLon bottle to the order for those who have never used the ProLon 5-Day kit or who wish to receive a new one. However, the reduction of environmental impact is not always associated with a reduction in prices, as, often, new packaging technologies and local production represent an increase in costs. Anyway, we always try to find the best solution for you, as your satisfaction is our main priority!

Customer Care Team

Rated 4 out of 5 stars

It’s my second round of Prolon diet and…

It’s my second round of Prolon diet and I feel good. The soups are a bit boring but I really like the fasting bar and kale crackers.
The only downfall is that one N3 tablet was not in the originally sealed bag.

9 May 2023
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Reply from ProLon® España

Dear Customer, many thanks for your great feedback!

Rated 5 out of 5 stars

I am Type 2 diabetic & I've lost about…

I am Type 2 diabetic & I've lost about 6-7 pounds weight`over the 5 day period.
I'm hoping it's done my insulin resistance some good as well.

15 January 2023
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Reply from ProLon® España

Dear Brian, many thanks for your great experience. We want to share you a clinical trial done in patients with Diabete 2 type https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-020-00576-7. We also remind you that in the case of particular pathologies such as in your specific case, before carrying out a cycle of prolon, it is advisable to evaluate your medical condition with your specialist.

Our team of nutritionists is always available for further nutritional consultation.

Rated 1 out of 5 stars

Horrible

Horrible, Pedi mi pedido con express shipping, y como no llego a tiempo lo devolvi. Y despues de 2 meses todavia no me llega mi refund.

Un escandalo!!1

5 July 2022
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Reply from ProLon® España

Querida Daniela, lo sentimos mucho por su critica negativa pero al revisar su pedido, sabemos que fue entregado en su casa el 28 de junio. Si escribe a info@prolon.es también podemos enviarle un comprobante de entrega. Que tengas un buen día.

Rated 2 out of 5 stars

I started this program 3 days ago and I…

I started this program 3 days ago and I have encountered this little pieces of wood or rock in my L-Bar every time... When I ate it for the first time it almost broke my teeth... it’s not edible and I would recommend you check what it is. It is very dangerous and I am now being extra careful eating my bars.
I hope this can change for the next customers.
Thanks,

15 August 2022
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Reply from ProLon® España

Querida Celestine, thank you very much for alerting us. To apologize we have sent you free-kits. We hope you enjoyed it.

Rated 1 out of 5 stars

Son un Fake.

Son un Fake. No enviaron el libro, cancelaron la consulta medica...

13 January 2022
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Reply from ProLon® España

Buenas tardes. Nos ha comunicado el equipo de nutricionistas que ya se han puesto en contacto contigo y que podéis agendar otra consulta médica. ¡Muchas gracias y sentimos las molestias causadas! Quedamos a tu total disposición.

Rated 1 out of 5 stars

I only received 1 box

I only received 1 box, I paid for 3

4 February 2021
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Reply from ProLon® España

Dear Emma, We are really sorry for this inconvenience. Fortunately, we solved the problem.
Enjoy your FMD!

Rated 4 out of 5 stars

Easy way to do fasting, but communication should improve

The Prolon Fast Mimicking Diet is a very easy way to fast. Major advantages:
1. You won't be hungry
2. You don't need to think about anything. The program is very easy to follow. Just pick out the indicated package at the right time.

Areas to improve:
1. The communication was very scarce (no order confirmation email, no info on that the package had been sent, …) and only in Italian.
2. Quality control in packaging. On Day 2 the L-Bar was missing.
3. Pricing should come down as volume rises. Otherwise there's a big incentive to revert to a do-it-yourself approach

14 November 2019
Unprompted review
ProLon® España logo

Reply from ProLon® España

Dear Arne, our goal is to get better and better and we hope that the next time you will have a very positive experience with us.

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