FAQs

Medically-Related ·
Can I use ProLon with an existing health condition?
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.
Medically-Related ·
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....
Medically-Related ·
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 cycle. Headaches can also be from the fasting state, thought to...
Medically-Related ·
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...
Medically-Related ·
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...
Medically-Related ·
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...
Medically-Related ·
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.
Medically-Related ·
Can I do a ProLon cycle while I’m menstruating?
None of our trials so far have studied the impact of ProLon on menstrual cycles, nor have we studied the optimal time to fast regarding female hormone levels. You can do a ProLon fast at any time during your menstrual...
Medically-Related ·
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...
Medically-Related ·
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...
Medically-Related ·
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,...
Medically-Related ·
Why do I feel constipated or bloated?
Any significant change in diet can lead to changes in the gut, which may contribute to feelings of bloating and gassiness. If you typically consume a high fiber diet, or a diet high in carbohydrates (which tend to draw water...
Medically-Related ·
Can I do ProLon during platelet-rich-plasma therapy (PRP), stem cell therapy, other infusions like Remicade, or chelation therapy?
ProLon has not been evaluated in combination with any of these procedures. Please discuss with your healthcare provider, who may recommend waiting several days after finishing ProLon or any other low-calorie diet prior to any medical procedure, and waiting several...
Medically-Related ·
Can I use ProLon if I am on a low-lectin diet?
Most people who follow a low-lectin diet try to omit lectins entirely, including legumes, nightshade vegetables, and certain grains. ProLon does contain lectins, however we believe the health benefits outweigh the concerns for most people, and most people tolerate ProLon well,...
Medically-Related ·
What if I cannot swallow pills?
While the NR-1 is technically time-release coated, its disintegration time is about 15-20 minutes (that is, while still in the stomach). Because of this, it’s fine to put the NR-1 in the soup, water, or an herbal tea and let...
Medically-Related ·
What if I am on hormone replacement therapy?
We cannot provide medical advice, including whether or not you can or should use ProLon if you are on hormone replacement therapy, or any other therapy, medical treatment, or prescription. If you are on hormone replacement therapy (or any other...
Medically-Related ·
Can fasting help with depression?
The effect of fasting on depression is an area of ongoing research, and there is a lot of interest in this topic. However, there have been no published studies evaluating the impact of ProLon on depression. Please contact your healthcare...
Medically-Related ·
Can ProLon help my microbiome?
The impact of fasting on the gut microbiome is still being evaluated. All currently published data on ProLon and the gut microbiome is preclinical (tested in animals, but not humans yet), so we cannot speculate on the impact it may...
Medically-Related ·
Does ProLon improve “leaky gut”?
ProLon has not been evaluated for its impact on “leaky gut” and we cannot comment on what the outcome may be.
Medically-Related ·
Can I use ProLon if I have a history of kidney stones?
You should discuss this question with your healthcare provider, who may advise against using ProLon, or who may have specific recommendations for you during ProLon use regarding fluid intake and medication adjustments. Note that the quantities of food in ProLon...
Medically-Related ·
Are there any studies of polycystic ovary syndrome (PCOS) and fasting/ProLon?
We do not have any published clinical trial information on PCOS and ProLon use, and cannot make any medical recommendations about the management of PCOS with ProLon at this time. We are looking forward to starting a trial at some...