Discover Fasting
The Science of Fasting Mimicking
1. Your cells usually feed on the carbohydrates, protein, and fat you eat.
2. The Same Glucose & Ketone levels as drinking water
Fast Bar was scientifically formulated with these ingredients so that it doesn’t trigger the food sensing system, unlike your usual meals. We call this the fasting mimicking effect and it means that when you eat a Fast Bar during your fasting window, it curbs your hunger without breaking your fast, so you can fast for longer*!
*In a randomized, controlled study of 105 adults, participants fasted overnight for 15 hours, then had either breakfast, a Fast Bar, or water.  Blood glucose and ketones were measured every hour for 4 hours with results shown above. Click here to read the published scientific article.

Fast Bar is a nutrition bar that nourishes your body with a premium blend of nuts, for when you are into intermittent fasting, on the go, or simply want to enjoy a delicious snack.

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Intermittent Fasting

Intermittent Fasting consists of a Fast On/Fast Off approach, but it may be risky when you skip meals. The following are the most common types of intermittent fasting. 

  • TIME-RESTRICTED EATING (TRE) - you restrict the hours you eat in a day.

  • WHOLE DAY FASTING - you don't eat anything in one day once a week.

  • ALTERNATE DAY FASTING - you eat food one day and the next you don't.

  • 5:2 DIET - you fast for 2 days a week, usually not consecutive days.  Some variations allows you to eat on fasting days, getting up to 500 calories if you're a woman, and up to 600 calories a day if you're a man.
Prolonged Fasting
ProLon Fasting Mimicking Diet

Prolonged Fasting is 3 or more consecutive days of fasting in a week. 

Your body is believed to start the process of autophagy (a process where your cells destroy and recycle cellular debris for nourishment, such as components that no longer function) on day 3, triggering cellular rejuvenation and the slowing of the markers of aging.

ProLon, the 5-Day Fasting Mimicking Diet (FMD)™ has been clinically tested to provide many of the benefits of fasting, but lets you Fast with Food™.

About Fasting

The FMD patented nutrition technology allows the body to enter and remain in a fasting state – a state which triggers a set of protective measures that the body developed as part of natural selection when food was scarce and not easy to find and store.This process pushes the body to become more efficient in its performance, rejuvenate its cells, and thrive under such circumstances.

Nuts are a great source of good fats.  Fast Bar is packed with nuts, including macadamia, almonds, and pecans as sources of good fats


Following time-restricted eating (TRE), individuals compress time in which they eat meals, ideally up to 12 hours in alignment with the circadian clock. The synergistic interactions of the circadian clock, in combination with fasting/eating signals, may ensure that the anabolic (buildup of energy) and catabolic (release of energy) phases of metabolism are coordinated in harmony with activity and rest cycles. This rhythm of eating and fasting on a daily basis can optimize nutrient intake, support the health of the individual, and promote longevity.