FAQs

What is the shelf life of the products?
Kindly note that our products are best enjoyed within 3 to 5 months of receipt. We do our best to provide products with at least 3 months of shelf life. To ensure optimal freshness and quality, we advise against consuming...
Why are enemas and colon cleanses not recommended during the program?
There have not been any documented benefits of doing a colon cleanse during a fast and, in fact, colon cleanses have been demonstrated to increase the loss of electrolytes and potentially increase the risk of dehydration, which may be unsafe,...
Do we have a recommended ketone range during ProLon?
We do not have a recommended ketone range during ProLon mainly because although ketone measurement can indicate physiological fasting, it is not a complete indication of fasting, and is not an indicator of the molecular (cellular) fasting which ProLon also...
Will I experience acid reflux?
Acid reflux was not a commonly reported occurrence during the clinical trials for ProLon, but different people experience reflux for different reasons, and we cannot give medical advice or state anything about acid reflux and your potential experience with certainty....
Do I have to wait to start ProLon after completing a round of antibiotics?
The impact of ProLon on antibiotics (or antibiotics on ProLon) has not been evaluated, but there do not appear to be any concerns with beginning ProLon 10-15 days after you have completed your course of antibiotics and symptoms have completely...
Trying to conceive?
ProLon has not been evaluated for its impact on fertility or conception. You should not utilize ProLon while trying to conceive (for the entire duration of your effort) unless under the direction of your healthcare provider. There are no contraindications...
What types of blood tests can be done to measure metabolic health?
If you’re only planning to do one cycle of ProLon, you will likely feel (and be able to measure) many of the benefits we advocate such as losing weight while on the fast, improving your relationship with food, feeling more...
What do I do if I’m having trouble sleeping during the program (due to hunger)?
The L-bar may be consumed later in the day and the dinner soup can be consumed at a later time. Some people elect to drink a large glass of water to help them feel fuller before bedtime.
Will ProLon impact my sleep?
Most of the data regarding the effect of fasting on sleep is anecdotal. However, in a survey of ProLon users, among healthy volunteers surveyed and reporting a difference in quality of sleep after using ProLon for the first time, the...
Does growth hormone spike after the 5 days of ProLon?
Some studies have demonstrated a significant increase in growth hormone during a prolonged water fast (typically in days 3 to 5), but the clinical studies on ProLon did not report growth hormone levels, so we can’t definitively say if the...
What if I get a headache? Can I take acetaminophen, ibuprofen, and/or aspirin?
Headaches can be from reduced caffeine intake during the ProLon program. To prevent this, we suggest slowly reducing your caffeine beginning a few days before you start your ProLon. Headaches can also be from the fasting state, thought to be...
Should routine intake of dietary supplements and prescribed medications be stopped during the ProLon dietary program?
You should not stop taking any prescription medications, and should not stop using any over the counter (OTC) medications or supplements your healthcare provider has told you to use without discussing it with them first. For this reason, if you...
Can I use ProLon with an existing health condition or disease?
If you have a medical condition, talk to your healthcare provider to determine your suitability for ProLon. If you do not have a provider, you can use our Healthcare Provider Locator to see if we have a provider near you.
What is the purpose of rice flour in the soups?
Rice flour is a non-gluten thickening agent used to give the soups body and make them more filling.
Is the sunflower oil in the kale crackers hydrogenated or not?
The sunflower oil in the kale crackers is NOT hydrogenated.
Salt content in ProLon:
The sodium content varies slightly between the days, ranging between 1.7 and 1.9 grams per day. This amount meets the criteria for the American Heart Association’s recommended daily salt intake for a heart-healthy diet.  Sodium helps your body hold onto...
Is ProLon FODMAP-friendly?
ProLon does include ingredients like peas, beans, coconut flour, onion, garlic, and more. It’s extremely difficult to quantify the specific amount due to how the soups are made, so ultimately, it’s up to you and your healthcare provider to determine...
Is ProLon kosher?
We are currently working on kosher certification for ProLon.
Is ProLon certified as Halal?
Yes, ProLon is certified as halal