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MET-Rx Big 100 Colossal Protein Bars

MET-Rx Big 100 Colossal Protein Bars are large and very fulfilling protein bars loaded with calories, proteins, carbs, and fats and can be used as meal replacement bars.

MET-Rx Big 100 Colossal Protein Bars can be consumed before and after the workouts to increase the energy levels and help with recovery, but also throughout the day instead of regular meals.

Published: August 9, 2021.

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MET-Rx Big 100 Colossal Protein Bars Features and Nutritional Content

Most MET-Rx Big 100 Colossal Protein Bars weigh 100g each, hence the number "100" as part of their labels. Protein bars come in several package sizes and can be purchased as individual protein bars - 9 bars packages are probably the most popular ones.

Main protein sources are soy protein, whey protein isolate, casein, calcium caseinate, with several more also being present - MET-Rx Big 100 Colossal Protein Bars proteins are medium-fast regarding their digestion, especially when mixed with other foods present in each protein bar.

The following comparison chart lists the most popular flavors with their macronutrient content:

Flavor Serving Size Protein Total Carbs Sugar Alcohols Fats Fibers Calories
Apple Pie 100g 31g 48g 4g 9g 1g 390 kcal
Chocolate Chip Cookie Dough 100g 30g 45g 18g 12g 1g 410 kcal
Chocolate Chunk 85g 31g 29g 16g 10g 2g 310 kcal
Creamy Peanut Butter Crisp 85g 30g 33g 23g 10g 2g 300 kcal
Fruity Cereal Crunch 100g 30g 43g - 14g 1g 380 kcal
Jelly Donut Crunch 100g 30g 47g 7g 13g 0g 410 kcal
Peanut Butter Cup 85g 30g 33g 21g 9g 2g 300 kcal
Peanut Butter Pretzel 100g 30g 47g 0g 12g 3g 410 kcal
Super Cookie Crunch 100g 32g 42g - 14g 3g 410 kcal
Vanilla Caramel Churro 100g 30g 47g 14g 11g 1g 380 kcal

MET-Rx Big 100 Colossal Protein Bars are also rich in many vitamins and minerals, with most of them being present in 20-40% RDA amounts, making these protein bars true meal replacement bars.

Thanks to many flavors, most people will easily find the best tasty ones - those that are rich in sugar alcohols are soft and chewy, while those that are low in sugar alcohols are mostly crunchy protein bars, so, choose according to your own preferences.

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While MET-Rx Big 100 Colossal Protein Bars can be used throughout the day, especially before and after workouts when calorie demand is increased, or as meal replacement bars, they should NOT be used for fighting cravings for sweets - they do taste great, but they are also very caloric protein bars, with the calories ranging from 300 to 410 kcal, and that is a lot.

Also, for people going on bike riding trips that can last for hours or even days, or for people who like hiking and similar physical activities that require plenty of calories, macro- and micro-nutrients, and liquids, consider taking several of MET-Rx Big 100 Colossal Protein Bars and enjoy them occasionally.

Note: Regardless of how good protein bars are, they cannot replace good and balanced nutrition. But, they can be part of it, of course.


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Long Story Short: If You are looking for a meal replacement bar or energy food bar with a balanced ratio of the macro- and micro-nutrients, consider MET-Rx Big 100 Colossal Protein Bars.

They come in many flavors, each containing at least 30g of protein, and contain many important vitamins and minerals. Also, with 300-410 kcal per bar, they can fuel the athlete for energy-demanding activities and can make any user satiated for hours.

For more reviews and recommendations, feel free to check the MET-Rx Big 100 Colossal Protein Bars Amazon link (link opens in the new window).