Best Diet Kits & Systems of 2025

Bonnie Salem Avatar
Bonnie Salem
Last Updated: Jan 2, 2025

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Diet kits and systems are designed to help individuals lose weight and improve their overall health. These kits typically include a combination of meal plans, supplements, and exercise programs to help users achieve their weight loss goals. Some systems also offer personalized coaching and support to help users stay on track and make healthy lifestyle changes. From low-carb diets to plant-based meal plans, there are a variety of diet kits and systems available to suit different dietary preferences and lifestyles. With the right program, users can achieve long-term weight loss and improve their overall health and wellbeing.

At a Glance: Our Top Picks

Prolon 5 Day Fasting Kit Cover #TOP 1
Prolon 5 Day Fasting Kit
ftb score rating icon 9.8
Nutrisystem® Fast Five Diet Kit Cover #TOP 2
Nutrisystem® Fast Five Diet Kit
ftb score rating icon 9.7
Nutrisystem 7-Day Weight Loss Kit Cover #TOP 3
Nutrisystem 7-Day Weight Loss Kit
ftb score rating icon 9.5

Top 10 Diet Kits & Systems

#TOP 1

Prolon 5 Day Fasting Kit

ProLon
PR00X
New Soup Flavor
5-Day Kit
Prolon 5 Day Fasting Kit Cover
Prolon 5 Day Fasting Kit | Fasting Program for Women & Men | Developed to Not Break Your Fast | Low Calorie Pre Made Meals & Snacks | Plant Based Ingredients for Diet Support | Version 3 Kit

The Prolon Fasting Kit offers a convenient way to enhance your fasting experience. You can enjoy a selection of flavorful soups and snacks that not only satisfy your cravings but also provide essential nutrients. Each meal is plant-based and low-calorie, ensuring you stay nourished while fasting. With five days' worth of easy-to-prepare meals, you’ll find it simple to maintain your fasting routine without hassle. This kit is designed to keep your body's nutrient sensing system stable, allowing you to fast effectively while enjoying delicious food.

What We Like
Delicious plant-based meals
Nutrient-rich snacks
Easy preparation
Maintains fasting state
#TOP 2

Nutrisystem® Fast Five Diet Kit

NS84317
Nutrisystem® Fast Five Diet Kit Cover
Nutrisystem® Fast Five 7-Day Diet Kit, 28 Delicious Meals & Snacks Plus Chocolate Protein ProSync Shakes

The Nutrisystem® Fast Five 7-Day Diet Kit includes 28 pre-portioned meals, snacks, and shake packets that are protein-powered to keep you feeling full and satisfied. The kit is easy-to-follow with helpful tools and resources, and made with real ingredients and no artificial sweeteners or flavors. It offers safe and healthy weight loss with the nutrients your body needs.

What We Like
Pre-portioned meals, snacks, and shakes
Easy-to-follow plans with helpful tools and resources
Real ingredients without artificial sweeteners or flavors
Protein-powered nutrition to crush cravings and keep you feeling full
Safe and healthy weight loss with necessary nutrients
#TOP 3

Nutrisystem 7-Day Weight Loss Kit

Nutrisystem 7-Day Weight Loss Kit Cover
Nutrisystem® FROZEN Members' Favorites 7-Day Weight Loss Kit with 28 Delicious Meals & Snacks

The Nutrisystem 7-Day Weight Loss Kit includes 28 delicious and satisfying meals and snacks, perfectly balanced with real ingredients and no artificial sweeteners or flavors. The kit features easy-to-follow plans complete with helpful tools and resources, making weight loss safe and healthy with the nutrients your body needs. All meals are frozen and include breakfasts, lunches, dinners, and snacks. Please note that products are subject to change according to availability.

What We Like
Easy-to-follow plans with helpful tools and resources
Real ingredients with no artificial sweeteners or flavors
Perfectly balanced with delicious and satisfying meals
#TOP 4

Nutrisystem® 7-Day Weight Loss Kit with 28 Meals & Snacks

NS84282
28 Piece Assortment
Nutrisystem® 7-Day Weight Loss Kit with 28 Meals & Snacks Cover
Nutrisystem® Kickstart Balanced 7-Day Weight Loss Kit with 28 Delicious Meals & Snacks

The Nutrisystem® 7-Day Weight Loss Kit offers a balanced diet plan with 28 meals and snacks, including breakfasts, lunches, dinners, and snacks. The kit comes with easy-to-follow plans, helpful tools and resources. It is perfectly balanced with delicious and satisfying meals made with real ingredients and without artificial sweeteners or flavors. It offers safe & healthy weight loss with nutrients that your body needs.

What We Like
Offers a balanced diet plan with 28 delicious meals & snacks
Easy-to-follow plans complete with helpful tools and resources
Perfectly balanced with delicious and satisfying meals made of real ingredients and without artificial sweeteners or flavors
Provides safe & healthy weight loss with nutrients your body needs
#TOP 5

Nutrisystem 14 Day Flex Kit

NS84277
42 Piece Assortment
Nutrisystem 14 Day Flex Kit Cover
Nutrisystem® 14 Day Kit Flex, Ready-to-Go Breakfasts, Lunches, and Snacks, 42 Servings

The Nutrisystem 14 Day Kit offers a convenient way to kickstart your healthy weight loss journey. With ready-to-eat breakfasts, lunches, and snacks, you can easily stick to your meal plan without the hassle of preparation. Each meal is designed to be protein-rich, helping to curb your cravings and keep you satisfied throughout the day. The meals are perfectly balanced, providing essential nutrients that your body needs to thrive. Plus, you can enjoy these meals knowing they are made with real ingredients, free from artificial sweeteners and flavors.

What We Like
Convenient meal options
Protein-rich nutrition
Balanced meals for health
No artificial ingredients
#TOP 6

Nutrisystem Kickstart 7-Day Kit

NS84281
Nutrisystem Kickstart 7-Day Kit Cover
Nutrisystem® Kickstart Protein Powered 7-Day Weight Loss Kit with 28 Delicious Meals & Snacks

The Nutrisystem Kickstart Kit offers a convenient 7-day weight loss plan that includes breakfasts, lunches, dinners, and snacks. You’ll appreciate the easy-to-follow guidelines, complete with helpful tools to keep you on track. Each meal is designed to be perfectly balanced, ensuring you enjoy satisfying flavors while supporting your weight loss goals. Plus, you can feel good about what you eat, as all meals are made with real ingredients and contain no artificial sweeteners or flavors. This kit is a safe and healthy way to shed pounds while getting the nutrients your body needs.

What We Like
Convenient meal planning
Delicious real ingredients
Easy-to-follow guidelines
Balanced nutrition
#TOP 7

Nutrisystem 14-Day Meal Replacement Kit

Nutrisystem 14-Day Meal Replacement Kit Cover
Nutrisystem® 14-Day Meal Replacement Kit with Lunch Bars & Shakes, 28 Servings

The Nutrisystem Meal Replacement Kit makes it easier for you to lose weight with convenient meals that fit into a proven plan. This kit includes 14 lunch bars and 14 shake servings, providing you with balanced nutrition that helps you feel full and satisfied throughout the day. You can trust that these meals are made with real ingredients, free from artificial sweeteners and flavors. Plus, the top-rated NuMi weight loss app supports your health journey with a digital meal plan and logging tools, keeping you motivated and accountable on your path to wellness.

What We Like
Convenient ready-to-go meals
Balanced nutrition for satiety
Real ingredients, no artificial additives
Supportive weight loss app
#TOP 8

Nutrisystem FROZEN Fast Five Kit

Nutrisystem FROZEN Fast Five Kit Cover
Nutrisystem® FROZEN Fast Five 7-Day Diet Kit, Helps Support Weight Loss, 28 Delicious Meals & Snacks Plus Chocolate Protein ProSync Shakes

The Nutrisystem Fast Five Kit is a convenient 7-day weight loss solution that offers a complete range of meals and snacks, including satisfying shakes. You’ll find it easy to stick to your weight loss goals with the clear plans and helpful resources provided. The protein-rich meals are designed to curb your cravings, keeping you full and satisfied throughout the day. Plus, with real ingredients and no artificial additives, you can feel good about what you’re eating. This kit aims to support safe and healthy weight loss with balanced nutrition tailored for your needs.

What We Like
Complete meal plan
Protein-rich nutrition
No artificial ingredients
Easy-to-follow guidelines
#TOP 9

Nutrisystem 4-Day Reboot Kit

Nutrisystem 4-Day Reboot Kit Cover
Nutrisystem® 4-Day Frozen Reboot Kit, 16 Servings

The Nutrisystem Reboot Kit offers a convenient 4-day meal plan that includes breakfasts, lunches, dinners, and snacks. This kit is designed to support healthy weight loss with popular frozen meals that you will love. Each meal is rich in protein, helping you to curb cravings and stay satisfied throughout the day. The meals are also perfectly balanced, providing essential nutrients that your body needs for optimal health. With real ingredients and no artificial sweeteners or flavors, you can enjoy delicious meals while staying on track with your health goals.

What We Like
Convenient meal plan
Supports healthy weight loss
Rich in protein
Balanced nutrition
No artificial ingredients
#TOP 10

Everlywell Food Sensitivity Comprehensive Test

Everlywell
204 Allergens
1 Count (Pack of 1)
Everlywell Food Sensitivity Comprehensive Test Cover
Everlywell Food Sensitivity Comprehensive Test - Learn How Your Body Responds to 204 Different Foods - at-Home Collection Kit - CLIA-Certified Labs - Ages 18+

The Everlywell Food Sensitivity Comprehensive Test is a convenient at-home collection kit that allows you to test your immune response to 204 different foods. By measuring IgG antibodies in a small blood sample, this test can provide valuable insights into how your immune system reacts to various foods. With the guidance provided by the test results, you can easily follow a temporary elimination diet to identify the foods that may be causing symptoms such as headaches and gastrointestinal discomfort. The easy-to-understand test results can be downloaded and shared with healthcare providers, family, or friends. Additionally, the Everlywell test is conducted by CLIA-certified labs and reviewed by an independent board-certified physician within your state, ensuring accuracy and reliability.

What We Like
Measures immune response to 204 foods
Guidance for elimination diet
Easy-to-understand results
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How do I schedule a diet plan?

To create a diet plan, you can start by determining your desired weight loss goals. For a gradual and healthy weight loss, aim to cut 500-750 calories from your daily diet to lose about 1 pound (0.45 kg) per week. If you want to lose 2 pounds (0.91 kg) per week, you can cut 1,000-1,500 calories per day. It's important not to try to lose more than 2 pounds per week as it can be drastic and potentially unhealthy.

2. How can I lose 20 pounds in a month?

Losing 20 pounds in a month would require a significant calorie deficit. To lose 5 pounds per week, which adds up to 20 pounds in a month, you would need to create a deficit of around 17,500 calories per week. This means having a deficit of 2,500 calories per day. However, it's important to note that losing weight too quickly can be unhealthy, so it's advisable to consult a healthcare professional or registered dietitian for personalized guidance.

3. How to lose 20 pounds in a month?

To lose 20 pounds in a month, you would need to aim for a weight loss of 5 pounds per week. This translates to a calorie deficit of around 17,500 calories per week, or 2,500 calories per day. However, it's important to note that losing weight too quickly can have negative health effects. It's recommended to consult with a healthcare professional or registered dietitian for a safe and personalized weight loss plan.

Editor's Notes

During our diet kits & system research, we found 24 diet kits & system products and shortlisted 10 quality products. We collected and analyzed 19,878 customer reviews through our big data system to write the diet kits & systems list. We found that most customers choose diet kits & systems with an average price of $83.28.

The diet kits & systems are available for purchase. We have researched hundreds of brands and picked the top brands of diet kits & systems, including ProLon, Nutrisystem, Everlywell. The seller of top 1 product has received honest feedback from 97 consumers with an average rating of 4.4.

Written by
Bonnie Salem Avatar

Bonnie Salem is a stay-at-home mother with two-year-old twins and has spent almost half of her life surrounded by baby products. As a mother and a professional copywriter, she has an insightful and unique eye for researching products suitable for infants. Bonnie Salem is an expert in health and nutrition who lives with her family in New Jersey. She has over 15 years of working experience in an institute of medicine after graduating from the University of Toronto. She is highly interested in personal health and wellness.