Author:Lisa Esposito Update:2024-10-30
The Jenny Craig diet has secured a spot on U.S. News & World Report's list of the Best Diets for 2023. Explore comprehensive Jenny Craig reviews, detailed meal plans, extensive food lists, and valuable tips to enhance your understanding of this acclaimed diet program.

What is the Jenny Craig Diet?

Jenny Craig is a well-organized diet program centered around prepackaged foods designed to control calorie intake, manage fat content, and regulate portion sizes. This approach aims to foster healthy eating habits, encourage an active lifestyle, and facilitate behavior modification for sustained wellness.


Dedicated personal coaches accompany members throughout their entire journey, providing continuous support, motivation, and guidance from the outset. The company assures that you'll receive assistance in understanding appropriate portion sizes, achieving balanced meals, and applying this knowledge to effectively manage your weight. By adhering to the plan, individuals are anticipated to experience a gradual weight loss of up to 2 pounds per week.


  • Low-fat. The diet encourages moderate consumption of healthy fats – monounsaturated and polyunsaturated fats – and discourages unhealthy fats, such as saturated fats. Less than 30% of total calories in this diet come from fat.

How does the Jenny Craig Diet work?

  • There are several Jenny Craig plans to choose from, all of which include breakfasts and lunches. 

  • Your diet ranges from 1,200 to 2,300 calories a day and is designed around your current weight, age, gender, height, goal weight and fitness habits.

There are three meal plans available:
  • Simple Meal Plan. Seven breakfasts and lunches.

  • Essential Meal Plan. Seven breakfasts, lunches and dinners.

  • Max Up Weight Loss Meal Plan. Seven breakfasts, lunches, snacks and desserts and recharge bars, plus activity plans and personal coaching.


Max Up Plan


Launched in 2022, the Max Up Plan incorporates the science behind intermittent fasting. You eat during a 10-hour nourishment period, then take a break for a 14-hour rejuvenation period, which includes sleep.

Many of the research protocols on time-restricted eating involve eating within a shorter window, while fasting for longer periods of time.

"The benefits of this appear to be more behavioral than metabolic," says Monica Reinagel, a licensed nutritionist, host of the Nutrition Diva podcast and co-founder of the Weighless program. "In other words, observing a restricted eating window can support weight loss. But it's more about cutting down on your food intake than about ramping up your metabolism."

To help make intermittent fasting easier, members can eat Jenny’s Recharge Bar toward the end of their 14-hour fast. Although most nutrition experts believe that eating these bars would break your fast, the company claims they are formulated to curb your hunger, while maintaining your fast. In a small 2021 study, participants lost more weight with the bar than without, but there is no clinical reason that they would burn more fat or speed up weight loss, as the company states.

On the Max Up Plan, you’ll eat three Jenny Craig packaged meals, a Jenny Craig Recharge bar, a Jenny Craig-branded snack or dessert, one snack of your choosing, five servings of your own fruit and vegetables and at least one lean protein or low-fat dairy equivalent. Once you’ve lost half your weight, you’ll begin to cook your meals a few times a week.

Weekly coaching is available in person, over the telephone or online. Your coach will discuss your goals, food preferences and activity level to develop an individualized weight loss plan for you.

However, the coaches are not trained nutrition professionals. Anyone who is "health-oriented and customer-focused" can attend a training course and get certified. The training curriculum was developed by registered dietitians in consultation with a science advisory board and covers the basics of nutrition, exercise and behavior modification. Many coaches are former Jenny Craig members.

Can I Lose Weight on the Jenny Craig Diet?

If you stick with the plan, there's a good chance you'll see results in both long-term and short-term weight loss.

However, the faster the weight comes off, the less likely it is to be sustainable, Reinagel says.

"Most of the weight lost in the first week is water weight, not fat loss. As soon as you stop restricting calories and/or carbs, that water weight is likely to return," she says. "Rapid weight loss also tends to increase the loss of lean muscle tissue, which is not the kind of weight you want to lose."

In her practice, the most sustainable results come when people lose the weight slowly, especially the last 5 to 10 pounds.

"I call it 'coming in for a soft landing,'" Reinagel adds. "The habits and behaviors that get you to your goal weight turn out to be the same habits and behaviors that keep you there. It's not a dieting phase followed by a maintenance phase."


Short-Term Weight Loss


The company claims you can lose up to 18 pounds and five inches off your waist in your first four weeks on the Max Up Plan. The majority of people lose the most weight in the first week.
  • A 2021 study published in the scientific journal Nature found that individuals following the Jenny Craig Max Up program experienced significant weight loss and improvements in blood sugar levels after eight weeks.

  • A 2017 study published in Applied Physiology, Nutrition, and Metabolism randomly assigned 133 sedentary, overweight women to follow Curves, Jenny Craig, Weight Watchers, Nutrisystem or their normal diet for 12 weeks. The researchers found that Jenny Craig participants lost an average of nearly 12 pounds, which was slightly more than the other three commercial programs.

Long-Term Weight Loss


The company states that users can expect to lose two pounds per week while on the Jenny Craig plan.
  • A 2015 review of 45 studies in the Annals of Internal Medicine compared commercial weight-loss programs – including Jenny Craig, Weight Watchers, Nutrisystem and Medifast – and found that Jenny Craig participants lost the most weight over 12 months, with almost 5% more than a control group that was given nutrition education and counseling. 


Weight Maintenance and Management


During the Jenny Craig maintenance program, members continue communication with their coach and still eat some Jenny Craig foods. You’ll meet with your coach weekly for the first month of maintenance and will likely transition to monthly coaching sessions after that.

During this period, members receive important information to help them keep the weight off, such as proper portion sizes, eating in restaurants, self-care and the importance of physical activity. As time goes on, you’ll transition to eating your own foods. It’s recommended that you exercise for 45 to 60 minutes a day to maintain your weight loss.

  • In a study published in the Journal of the American Heart Association in 2013, among 417 women who were overweight or had obesity, researchers measured blood lipids, glucose, insulin, C-reactive protein (a marker of inflammation) and cardiopulmonary fitness at baseline at 12 months and 24 months. Body weight, waist circumference, C-reactive protein, total cholesterol, high-density lipoprotein ("good") cholesterol and non-HDL cholesterol levels were significantly reduced after 24 months. Total cholesterol and non-HDL cholesterol decreased after 24 months, regardless of the amount of lost weight. The other factors only decreased among those who lost at least 10% of their body weight. The authors concluded, “Our data extend the results from short‐term weight loss trials and suggest that the magnitude of weight loss and baseline values for risk factors are associated with improvements in cardiometabolic risk factors even after 24 months.”

  • A systematic review published in April 2020 in BMJ evaluated more than 120 studies, comparing 14 named and three controlled diets. Among popular named diets, Atkins, Zone and DASH had the the largest effects on weight loss and blood pressure in comparison with usual diet. Jenny Craig scored among the “most effective” in terms of six-month weight loss alone, reaching nearly 17 pounds. However, at one year, overall weight loss diminished for all diets.

  • A randomized controlled trial published in the Journal of the American Medical Association in 2010 looked at weight loss and maintenance among 442 people who were overweight or had obesity and participated in one-to-one counseling. All of the women received prepackaged meals and either in-person at a center or telephone counseling.

    Women in the center-based group lost an average of 22.22 pounds by 12 months and maintained an average of 16.28 pounds lost at 24 months. Participants in the telephone-based group lost a mean of 18.7 pounds by 12 months and maintained an average of 13.64 pounds at 24 months. By the end of the study, 62% of the center-based and 56% of the telephone-based participants had a weight loss of at least 5%, compared with only 29% of the usual care participants. More than twice as many participants in the center-based and telephone-based groups lost 10% of their starting weight at 24 months compared to the usual care group. However, this study had a much lower dropout rate than most weight loss studies. This was largely due to the economic savings – all food and clinic visits were free of charge for participants. Also, it is likely that people who agree to participate in a randomized controlled trial are more motivated than the general population.

What Does the Jenny Craig Diet Cost?

Plans and pricing:
  • Simple Meal Plan. $13.99 per day.

  • Essential Meal Plan. $21.99 per day.

  • Max Up Weight Loss Meal Plan. $28.54 per day.

Flat standard shipping rate of $29 per shipment may apply, depending on your plan and current promotional offers.

What Costs Are Related to the Jenny Craig Diet?

  • The weekly cost of your food and shipping costs. 

  • The cost of your groceries (mainly dairy, fruit and vegetables during the initial phase).

Doing Jenny Craig Diet on a Budget

There isn’t much that you can do about the cost of prepackaged Jenny Craig foods. However, when you’re planning and preparing your own meals, the following tips might help you keep costs down:
  • Look for fruit and vegetables that are in season. 

  • When you’re making your meals, cook large recipes and freeze unwanted portions for later

  • Learn how to make a few meatless meals that you enjoy, which tend to be cheaper to prepare than meat-based dishes. 

  • Stock up when foods are on sale, but don’t buy more than you can eat or freeze before it goes bad. 

  • Don’t shy away from frozen or canned fruit and vegetables. 

  • Choose canned tuna or salmon.

Is Jenny Craig Diet Easy to Follow?

The Jenny Craig diet is ranked #20 in Easiest Diets to Follow (tie).

Jenny Craig has nearly 100 entrées, desserts and snacks to choose from. Though portions are small, you'll eat three meals and two snacks a day – one of which is your own food. Plus, there's no carb-cutting or elimination of entire food groups. But for the most part, you'll eat Jenny Craig packaged meals exclusively until you lose half of your goal weight.

Meals are convenient with no extra preparation. What's not to like about prepackaged meals delivered to your doorstep or picked up at a center?

Alcohol and caffeine are allowed in moderation, and your coach will help you determine appropriate amounts. The company's online resources may also be helpful.

You have support systems at your fingertips. The Jenny Craig community offers a space for members to share tips and encouragement. The “Healthy Habits” blog provides free information, including interviews with a registered dietitian nutritionist and healthy cooking techniques.

Feeling full should not be a problem. Nutrition experts emphasize the importance of satiety, the satisfied feeling that you've had enough. Hunger shouldn't be a problem on this diet. Jenny Craig encourages you to enjoy as many non-starchy vegetables as you’d like and drink plenty of water which helps aid fullness.

Who Should Not Try the Jenny Craig Diet?

  • Children under the age of 13 cannot participate since they are still developing. Once 13, they can sign up for the Jenny Craig Classic menu if they have no health conditions other than asthma or seasonal allergies. Their parent’s permission is required.

  • People who are pregnant cannot sign up. 

  • Individuals with allergies – such as milk, soy or wheat – can't sign up.

  • You can participate in Max Up if you are 18 or older. However, Max Up is not an appropriate program for you if you are pregnant, breastfeeding or have diabetes and are on insulin. 

  • Those with diabetes on insulin can sign up for the Jenny Craig for Type 2 program. 

  • Breastfeeding mothers can participate once their babies are six weeks old. The calorie level for nursing mothers is based on the child’s age and how often they’re breastfeeding.

Pros

  • Nutritionally sound.

  • Coaching and/or group support available.

  • Convenient – grab and go options.

  • A clearly defined plan with recipes.

  • Has proven health benefits.

Cons

  • Eating out is limited.

  • You’ll likely get hungry.

What Can I Eat? Do's and Don'ts of the Jenny Craig Diet

Jenny Craig relies on prepackaged meals but allows additional servings of fruits, vegetables and nonfat dairy products throughout the day.

Foods to Eat

  • Three packaged Jenny Craig meals. 

  • One daily Jenny Craig snack. 

  • One daily snack of your choosing.

  • At least one lean protein or one serving of low-fat dairy equivalent.

  • Five servings of fruit and non-starchy vegetables


Foods to Avoid (or Limit)


  • There aren’t any specific foods that are off-limits completely. You can eat anything as long as it fits into your daily food allotment. 

  • Alcohol is only recommended in limited amounts. 

  • Eating out isn’t banned but should be limited. 

  • The program is not allowed for individuals with serious allergies to corn, corn products, gluten, milk, soy, wheat, peanuts or tree nuts. Ingredient information, allergen statements and allergen precautionary statements are provided for all products.


Vegan and Following the Jenny Craig Diet


Jenny Craig offers prepackaged vegetarian options and recipes. But the options are not vegan; they contain dairy products such as milk and cheese, as well as animal-derived enzymes. See all vegan diets.

Vegetarian and Following the Jenny Craig Diet


There is a small selection of vegetarian options on the Jenny Craig plan. See all vegetarian diets.

Gluten Free and Following the Jenny Craig Diet


Jenny Craig does not offer gluten-free meals. People with celiac disease are not allowed to sign up for the program. See all gluten-free diets.

Halal and Following the Jenny Craig Diet


Jenny Craig doesn't offer options or guidance for halal. See all halal diets.

Kosher and Following the Jenny Craig Diet


None of Jenny's meals qualify as kosher. See all kosher diets.

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