WonderSlim is a portion-controlled weight loss program based on packaged meal replacements.


The WonderSlim products are high in protein and low in calories.

WonderSlim claims that their diet plans are suitable for both women and men of any age or fitness level.

Wonderslim Basics

  • On the WonderSlim Diet Plan, you will eat 6 times a day, which is about once every two or three hours.
  • You should never skip a meal even if you are not hungry. Consuming all the recommended meal replacements and foods is essential to maintain optimal nutrition, curb appetite and support lean muscle.
  • Drink 8 glasses of water a day.
  • Prepare foods by baking, boiling, steaming, broiling grilling or roasting.
  • Frying is not permitted.

Using these rules, WonderSlim offers 3 Weight loss Plans.

WonderSlim Basic Plan

Includes 4 portion-controlled WonderSlim meals a day.

You will select from a menu of meal replacement shakes, smoothies, bars and snacks.

Each day you will also include a variety of healthy foods in your diet.

WonderSlim Core Plan

This is the most popular plan and consists of 5 WonderSlim meals a day.

In addition to shakes, smoothies, bars and snacks you also get to choose one WonderSlim lunch dish each day.

For the evening meal you will have a balanced low-fat dinner consisting of lean protein, starch and vegetables.

WonderSlim Premium Plan

On this plan you will have 7 Wonderslim meals a day, which makes portion control very easy.

It also includes WonderSlim dessert options.

WonderSlim Kits

wonderslim meals

WonderSlim offers a variety of diet kits in 2-week or 4-week sizes. Dieters are encouraged to choose the plan that works best with their budget and lifestyle.

Each kit includes a variety of WonderSlim products that will last you for that time period.

You can easily customize the kit to suit your preferences without affecting the nutritional balance of the plan.

Extras Included with the Program

In addition to the meal replacements dieters will receive:

  • Multi-Vitamins
  • EFA Softgels
  • Shopping List
  • Food Diary
  • Blender Bottle

The WonderSlim Lifestyle Guide is also included. This is a 12-step instruction book that provides information and advice about nutrition, exercise, and behavior modification.

Recommended Foods

Non-WonderSlim foods recommended
Turkey breast, chicken breast, fish, shrimp, fat free cheese, nonfat yogurt, egg whites, asparagus, beans, broccoli, eggplant, mushrooms, peppers, tomato, zucchini, apple, berries, grapefruit, melon, whole grain cereal, whole wheat bread, air-popped popcorn, rice cakes, pasta, oatmeal, potato, margarine, mayonnaise, peanut butter, salsa, artificial sweeteners.

Sample Day’s Meal Plan


1 WS Apple ‘n Cinnamon Oatmeal
4 oz nonfat fruit flavored yogurt

Morning Snack

1 WS Mocha Cream Shake
¾ cup blueberries


1 WS Chicken Noodle Soup
1 cup celery
1 cup red peppers
6 low-fat crackers

Afternoon Snack

1 WS Zesty Lemon Bar


4 oz chicken breast
1 cup broccoli
1 cup carrots
½ cup pasta
¼ cup salsa


1 WS Caramel Pudding

Exercise Encouraged

Exercise is not compulsory but is strongly encouraged because it boosts your metabolism and improves your self-esteem.

The WonderSlim® Lifestyle Guide includes a number of simple and enjoyable exercise routines to get you started.

Costs and Expenses

WonderSlim kits range from $120.75 – $179.40 for two weeks or $199.55 – $310.54 for four weeks.

This equates to around $7-12 a day, depending on which kit is selected.


  • Utilizes calorie and portion control, which is a proven method of effective weight loss.
  • Small, frequent meals can help alleviate hunger while on a low-calorie diet.
  • Simple to understand and easy to implement.
  • Requires very little time for food preparation.
  • You can order the products online and have them delivered to your home.


  • Consuming pre-packaged foods at almost every meal may not be appealing.
  • Not suitable for individuals that do not tolerate dairy products.
  • Calorie intakes may be too low for physically active dieters.
  • Encourages consumption of unhealthful foods including margarine, artificial sweeteners, and preservatives.
  • Does not teach dieters how to eat a calorie-controlled diet without meal replacements.
  • The majority of dieters will regain the weight once they return to a normal eating pattern.

Successful in the Short-Term

WonderSlim is a typical meal replacement diet where the majority of meals and snacks are replaced by packaged diet foods.

This approach is often successful for weight loss because it makes portion control easy. However, the meal replacements are highly processed and contain many unhealthful ingredients.

Additionally most dieters tend to regain weight on these types of programs once a normal diet is resumed.

See the Wonderslim program here

 By Mizpah Matus B.Hlth.Sc(Hons)
  • Heymsfield, S. B., Van Mierlo, C. A. J., Van der Knaap, H. C. M., Heo, M., & Frier, H. I. (2003). Weight management using a meal replacement strategy: meta and pooling analysis from six studies. International journal of obesity, 27(5), 537-549. study link
  • Catenacci, V. A., & Wyatt, H. R. (2007). The role of physical activity in producing and maintaining weight loss. Nature Clinical Practice Endocrinology & Metabolism, 3(7), 518-529. study link


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Last Reviewed: March 29, 2021