FAQs
ProLon and over the counter (OTC) Antihistamines
This has not been formally studied, but non-drowsy allergy medications do not appear to interact with the fasting pathways, but as with all medication use, we recommend discussing any specific concerns with your healthcare provider. Read more...
Can I get an enema during the program?
The impact of enemas was not evaluated during ProLon clinical trials. While we cannot provide medical advice, and you should seek the advice of a healthcare provider, we do not recommend getting an enema during or immediately after ProLon. Read more...
What can I do to Help Bowel Movements? Can I use Stool Softeners (like Senna or Smooth Move Tea) while on the program?
We have not directly studied the use of stool softeners, laxatives, or pro-motility agents with ProLon. We cannot give any medical advice, and recommend discussing all medication changes or concerns with your healthcare provider. We encourage people to maintain adequate fluid intake while on ProLon, which has many benefits including helping to maintain bowel regularity. If you regularly take stool softeners or other medications to maintain bowel regularity, your healthcare provider may suggest you continue to do so during ProLon, as long as the preparation is calorie-free. Read more...
Can I schedule my ProLon cycle the week of an Allergy Test?
Please talk to your healthcare provider about allergy tests and when to schedule a ProLon cycle. We have not evaluated the impact of ProLon on allergy testing. Read more...
Do my bowels change while on the program?
ProLon appears to affect each person a bit differently. Most people will not experience any significant or lasting changes in their bowel habits during or after ProLon. Indeed, no big changes in bowel habits were observed during clinical trials. However, any substantial change in eating habits or diet can result in changes in frequency, consistency and/or timing of bowel movements, so some variation is to be expected. If you’re concerned about changes in your bowel habits during ProLon, please discuss it with your healthcare provider. Read more...
I feel like I have the flu after completing ProLon, is that normal?
Mild fatigue, headaches, and muscle aches are a normal part of fasting for many people (some call it keto-flu), especially the first time they complete a prolonged fast. However, symptoms generally resolve on the transition day. Please discuss any concerns about ongoing or persistent symptoms with your Health Care Provider. Read more...
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. Read more...
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 your tolerance for 5 days of a diet that includes some of these ingredients in various quantities. Read more...
What’s in the kale crackers and soups?
  The kale crackers and soups provide naturally occurring micro- and macro-nutrients to nourish your body during the fast, without triggering your food-sensing pathways. They provide a small amount of protein in addition to what the L-Bar provides, in the form of plant-based proteins which are healthier than animal-based proteins. We also use soups in powdered form as we can more easily guarantee they contain just the right proportion of macro- and micro-nutrients in each package, and they are easier to ship to our customers all across the globe. Read more...
What is the purpose of the L-Drink?
The purpose of the glycerin in the L-Drink is to provide the body with an alternate energy source to use instead of lean body mass during days 2-5 of the fast. So, the L-Drink helps protect your lean body mass while keeping you in a fasting state. You will use the amount of L-Drink associated with your weight and mix is in with water in a large water bottle (32 oz). The weight on the L-drink is marked from top to bottom, not from bottom to top, meaning the more... Read more...
I'm sensitive or allergic to certain food. Can I still do ProLon®?
We can’t predict how everyone will respond to the program, or to a particular ingredient in the food. If you're concerned, you should discuss your food sensitivities with a healthcare provider before starting.   ProLon contains nuts, celeriac/celery, oats, and sesame and should not be used if you have allergies to any of these ingredients. Review the nutrition labeling for a complete list of ingredients.   Some of our products (bars) are processed in a facility where peanuts, eggs, soy, wheat, milk, and shellfish are also present. More information on... Read more...
Are all of the components of ProLon considered organic?
ProLon contains some products that are made with organic ingredients, but they are not certified organic. Read more...