Best Diet Bars of 2026
* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Diet bars are a convenient and healthy snack option for people who are always on-the-go. These bars are designed to provide a balanced mix of nutrients, including protein, fibre, vitamins, and minerals, while keeping the calorie count low. They come in a variety of flavours, from chocolate to fruit and nut, and are often fortified with additional ingredients such as probiotics or omega-3 fatty acids. Diet bars are an ideal choice for those looking to manage their weight or maintain a healthy lifestyle without sacrificing taste or convenience.
At a Glance: Our Top Picks
#TOP 1
9.9
#TOP 2
9.8
#TOP 3
9.6
Top 9 Diet Bars
SlimFast Choc Caramel Low Calorie Snack Bars
The SlimFast Snack Bars are a delightful low-calorie treat, with each bar containing just 99 kcal. They provide a quick and simple snack option, making them perfect for enjoying at home or on the move. With their sweet and indulgent Choc Caramel flavour, these bars help satisfy your sweet tooth while keeping you on track with your dietary goals. Incorporating these bars into your day can assist you in your weight loss journey as part of the SlimFast 3.2.1 plan, or simply as a tasty addition to a balanced diet.
Fitbakes Low Calorie Belgian Chocolate Bars
Fitbakes Chocolate Mini Bars are a delightful treat for those seeking low-calorie snacks. With just 64 calories and less than 1g of sugar per bar, you can indulge without guilt. These bars are perfect for anyone following a keto or Atkins diet, providing a satisfying chocolate fix with only 1 net carb. Additionally, they make an excellent gift for diabetics, as they are specifically designed to be safe and enjoyable for those managing their sugar intake. You’ll also benefit from 5g of fibre per bar, promoting gut health.
Slimming World Triple Chocolate Snack Bars
The Triple Chocolate Bars offer an indulgent treat with their rich, decadent flavour that satisfies your chocolate cravings. Each bar is 20g, making it perfect for portion control while still providing a satisfying snack. Conveniently packaged in two pouches of six, you can easily grab a bar whether you're at home or on the go. Designed for those following the Slimming World plan, these bars allow you to enjoy a sweet treat without the guilt.
Fit Bakes 65 Cal Keto Cookies & Cream Bars
The Fit Bakes Keto Bars are low sugar snacks with just 65 calories each, perfect if you want a tasty but healthy treat. They fit well into keto and Atkins diets, containing less than 1 net carb, so you can enjoy chocolate without breaking your diet. These diabetic-friendly bars make excellent snacks or gifts, offering a crunchy texture with low sugar content. Additionally, they provide 5g of fibre per bar to support gut health, making them a convenient and nutritious option for those watching their sugar intake and managing weight.
SnackSmart Keto Protein Bars for Weight Loss
SnackSmart Protein Bars are a nutritious choice for those seeking a healthy snack. Each bar is infused with prebiotic fibre to enhance gut health and digestion, ensuring you feel good with every bite. Packed with 12g of high-quality protein, these bars help to curb your hunger and provide energy for workouts. With less than 3g of natural sugars, they prevent sugar spikes and crashes, making them perfect for maintaining stable energy levels. Ideal for busy lifestyles, these conveniently wrapped bars can serve as a post-workout snack or meal replacement.
Slimming World Chocolate Fruit and Nut Bars
Slimming World HiFi Bars offer an indulgent treat with their rich triple chocolate flavour. Each 20g bar provides a satisfying portion-controlled snack, perfect for satisfying your cravings without overindulging. The convenient pack contains 12 bars, divided into two pouches, making them easy to carry and store. Whether you're at home or on the go, these slimming-friendly bars can be enjoyed as a delightful treat while supporting your dietary goals.
Skinny Cereal Bars with Kitchenfella Healthy Eating Guide
Skinny Whip Bars offer a delicious and guilt-free snacking option with a variety of flavours, including Toffee, Chocolate Orange, Double Chocolate, and Coconut & Dark Chocolate. Each 20g bar is high in fibre and contains less than 80 calories, making them ideal for a mid-afternoon pick-me-up or a lunchbox treat. You can indulge your sweet tooth without the guilt, and the inclusion of the Kitchenfella 14 Day Healthy Eating Challenge encourages a balanced approach to nutrition. Enjoy a tasty and convenient snack that supports your healthy lifestyle.
Skinny Crunch Bars Light Salted Caramel 3 Packs
The Skinny Crunch Light Bars offer a tasty and healthier snack option with their salted caramel flavour, featuring caramel fudge pieces and a milk chocolate flavoured drizzle. Each pack contains five bars weighing 19g each, making them convenient for on-the-go snacking. These bars are guilt-free with less than 70 calories per bar, perfect if you want to enjoy a treat without overindulging. They are also high in fibre, helping you feel fuller for longer, and are suitable for vegetarians, making them a versatile choice for various diets.
Adonis Pecan Hazelnut Cocoa Keto Bars Vegan
The Adonis Keto Bars offer a tasty and healthy snack option packed with crunchy pecans, antioxidant-rich goji berries, and cocoa powder, giving you heart-healthy fats to support your wellbeing. Designed with ideal keto macros, these bars provide high healthy fats, moderate protein, and low carbs, helping you manage hunger, boost fat burning, and support weight loss. Made from only the finest natural ingredients, including up to 48% quality nuts, these bars are both nutritious and delicious. With just 2-3g net carbs and sweetened naturally with erythritol, they’re perfect for vegans, keto followers, or anyone wanting a low sugar, guilt-free snack.
Frequently Asked Questions (FAQs)
1. Do weight loss bars work?
Protein bars can be a good source of calcium, potassium, vitamin B, fiber, and iron. They can also help you gain muscle mass and can even promote weight loss. In addition, protein bars can be a good meal replacement or post-workout snack.
2. Can you lose weight just eating protein bars?
Eating a protein bar for a meal can be an effective way to lose weight, because you are controlling the amount of calories consumed. Bars are easy to carry with you. On the negative side the bars tend to be expensive, and some people may not like the taste.
3. What is the diet bar?
Have you heard about the latest low calorie fiber sweetener? Diet Bar by Prozis is packed with isomalto-oligosaccharides, or IMOs: a low calorie fiber sweetener. As a naturally sweet fiber with prebiotic properties, IMO makes you feel fuller for longer, helping you control your appetite throughout the day.
4. Can you have 3 bars a day on exante?
Some diet companies have 4 meal replacements a day to give their clients 100% RDAs but Exante Diet products contain more volume per pack therefore 3 a day is sufficient.
During our diet bar research, we found 43 diet bar products and shortlisted 9 quality products. We collected and analyzed 38,445 customer reviews through our big data system to write the diet bars list. We found that most customers choose diet bars with an average price of £15.86.
The diet bars are available for purchase. We have researched hundreds of brands and picked the top brands of diet bars, including SlimFast, fit bakes, SnackSmart, kitchen fella, ADONIS.
In 2000, Phoebe Cooper graduated from the University of London as a Pharmacist. She practiced as a Pharmacist for the better part of 2 decades. Phoebe says she has worked in the majority of health sectors and has sufficient accumulated knowledge and experience. In her practice, Phoebe published a series of eBooks, one of which is titled "Good Health Good Living."