How to fast
to fit your goals & lifestyle.
Finding the right fasting practice to match your health goals.
More and more people are practicing fasting to lose weight and improve their health, but do we really know how to fast to achieve the desired effects? Below are three of the main types of fasting categories currently being used and how to best incorporate them into your lifestyle for optimal results.
How to Fast
The 5:2 Diet - For this type of intermittent fast, individuals can eat their normal, healthy diet 5 days per week, while the other two days (preferably non-consecutive) are dedicated to fasting. During each fasting day, the person will restrict their caloric intake to no more than 600 calories for men and 500 calories for women.
Alternate Day Diet - Another popular intermittent fasting approach, this diet calls for fasting on one day and then eating as you normally would on the following day. For the eating day, a healthy diet is encouraged. As for the fasting day, it could either be the complete elimination of all food or a modified version where a significantly reduced calorie intake (no more than 500 calories) is allowed.
How to Fast
Time Restricted Eating
12:12 Diet - With this daily fasting method, people have a 12-hour window each day to eat whatever (healthy) foods they want, and then they fast for the remaining 12 hours. For instance, if someone’s last meal of the night was at 7:00 p.m., they would want to have their next meal at 7:00 a.m. the following morning.
16:8 Diet - Similar to the 12:12, this TRE plan shortens the eating window by 4 hours to extend the time the body is in a fasting state. Here, the person would only have 8 hours in which they can eat each day, with the remaining 16 hours devoted to a complete fast. However, it is not recommended to skip breakfast during this fast, as recent research shows there could be a negative impact on heart health. If you want to practice 16:8, we found in a clinical study of 108 adults after a 15-hour overnight fast comparing the glucose and ketone results every hour for 4 hours in the Fast Bar group, breakfast group and water-fast group that our new Fast Bar can provide your body with sustenance while extending your fast.
How to fast
ProLon® Fasting Mimicking Diet®
Want to experience many of the incredible health benefits of a prolonged fast, but not willing to go that long without food? The ProLon Fasting Mimicking Diet was designed to put and keep your body in a fasting state while providing healthy and delicious food that you can eat.
Just follow the plan by consuming the food provided for each day to receive the precise quantities of micro- and macro-nutrients needed to nourish your body and minimize hunger pangs.
Achieve your health goals with ProLon Fasting Mimicking Diet.
Ready to try
Support Time Restricted Eating
Eating a Fast Bar® is an ideal way to support a TRE fast.
Fast Bar features a proprietary blend of premium nuts and other nutritious ingredients at scientific portions of macro- and micro-nutrients. This unique bar provides nourishment to your body and supports your fasting goals by helping you fast for longer*. Premium blend of nourishing ingredients. Plant-based protein. Good fats from nuts. Rich in fiber. Made without soy or dairy.
*Benefits seen in a randomized, controlled study in 108 adults after a 15-hour overnight fast comparing the glucose and ketone results every hour for 4 hours in the Fast Bar and water-fast group. Data on file.
This was my first 5 day. I was amazed about how I was rarely hungry and how much energy I had. Highly recommend!!Michele K.
The best fasting product out there.Monica Monroy & Jonathan Garcia
Very healthy, I felt renewed and ready to continue my journey to a healthier me.
Great diet. Second time. Got easier. And the results are amazing - lost 4kg (9-10 lbs) in 5 days and I feel great.*Elad Shoushan<br><small>*Results not typical. On average, weight is loss is 5 pounds in 5 days</small>
Do not use ProLon if:
ProLon is low in calories to support fasting. Ensure you are aware of the common side effects of fasting before starting a fast (see Is Fasting Health and Safe in our FAQs).
Not everyone should fast for prolonged periods of time. If you fit any of the following categories, you should fast only under the direct supervision or under the advice of a personal healthcare provider:
If you are a patient enrolling in the ProLon Professional Program only available through a healthcare provider, by using the QR code or purchasing from this website using your healthcare provider’s code or information, you are identifying as a patient. As part of the program, you agree to participate in coaching; receipt of educational materials through coaching, text messages, and/or email; and provision of a report back to your healthcare provider regarding your participation.