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Why Rapid Results Works - The Science Behind it

By Jenny Craig

Most of you probably feel overwhelmed by the constant barrage of new news about weight loss. At Jenny Craig, we use cutting edge nutrition research to cut through the confusion and help guide you to optimal weight loss and management.

This is why we’re excited to announce Rapid Results by Jenny Craig where you can lose up to 16 pounds in your first 4 weeks**. Average weight loss in the study was 11. 6 pounds for those who completed the program. Rapid Results is based on nutrition research that says it’s not just about what and how much you eat, but when you eat, that plays a factor in achieving your weight loss goal. Let’s take a look at the science behind Rapid Results and see why it’s so revolutionary for weight loss.


What Is Rapid Results?

Rapid Results is a science-based innovation to the Jenny Craig program and an expansion of the program you know and love. Members who completed Rapid Results lost up to 16 pounds in the first 4 weeks of the program!** We’ve created a new menu for you that matches the best times of day to consume your calories. Your metabolism follows a daily pattern, and because of this, from morning up to mid-afternoon is the most effective time to burn food calories. With Rapid Results, every member still receives comprehensive support from a weight loss consultant as well as the delicious Jenny Craig food.


**Average weight loss in study was 11.6 pounds for those who completed the program.

How Does It Work?

Recent studies have shown that each cell of our body contains biological clocks that follow a unique daily pattern, called a circadian rhythm. The 2017 Nobel Prize for physiology or medicine was recently awarded to three American scientists who discovered the circadian rhythm gene. From this research, we’ve learned that our internal network of body clocks dictates when to sleep, awaken and eat. By following this natural daily rhythm, we can take advantage of our metabolism and ability to burn calories when it’s most effective.


The Rapid Results plan works with your natural body clocks to provide a time period of nourishment when you need it and can burn the food fuel most effectively, and then a period of rejuvenation during which your body can rest and regroup. When your body goes into rejuvenation mode, your body’s cells aren’t distracted by metabolizing food. They instead get a break to “clean house” and regenerate and repair themselves. Research demonstrates various benefits to following this natural daily cycle, including improvements in immune and metabolic functions as well as reduction of belly fat, which is associated with obesity and type 2 diabetes.1-3

How Is Rapid Results Different from the classic Jenny Craig program?

The two main changes are prioritizing when you:


  1. NOURISH: throughout the day when you can burn calories most effectively.
  2. REJUVENATE: once your daily nourishment period is complete, your body’s cells then take time to reset, regenerate and then regroup in preparation for the next day.


You still eat six times per day, and check in with your consultant every 7 days who is undergoing new enhanced comprehensive training to deliver excellent weight loss guidance.


We’re excited to offer this enhanced program, which is available now. If you’d like to see how Rapid Results can help you with your weight loss goals, discuss the plan with your consultant or visit us at one of the 500 locations in local neighborhoods near you.


**First 4 weeks only. Average weight loss in study was 11.6 pounds for those who completed the program.



1 Longo, Valter D., and Satchidananda Panda. “Fasting, Circadian Rhythms, and Time-Restricted Feeding in Healthy Lifespan.” Cell Metabolism, vol. 23, no. 6, 14 June 2016, pp. 1048–1059., doi:10.1016/j.cmet.2016.06.001.
2 Manoogian, Emily N.c., and Satchidananda Panda. “Circadian rhythms, time-Restricted feeding, and healthy aging.” Ageing Research Reviews, vol. 39, 2017, pp. 59–67., doi:10.1016/j.arr.2016.12.006
3 Peterson, C. Pennington Biomedical Research Center. “Time-Restricted Feeding Increases Fat Oxidation and Reduces Swings in Appetite Levels in Humans.” Oral abstract presentation at: The Obesity Society Annual Meeting at ObesityWeekSM 2016; October 31 – November 4, 2016. www.obesityweek.com.

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