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If you're ready to drop the excuses and start making serious changes, the 28 Day Challenge is your system. New and improved! Now with 60 servings of Lean Life.


Product Description

The 28 Day Challenge Includes:

  • 28 Day Challenge Guide and Tracker
  • 2 Tubs of Meal Replacement
  • Hydrate & Recover
  • Energy & Focus
  • Multi-Vitamin
  • Lean Life (2 Bottles!)
  • Green Infusion

Wilderness Athlete is proud to introduce the 28 Day Challenge – a system designed to help you safely achieve your weight loss goals, and improve your overall nutrition. The system comes with a wide variety of Wilderness Athlete products that can make eating healthy and losing weight easier for people on the go. The 28 Day Challenge is designed to help people lose weight quickly and easily.

“The 28 Day Challenge is about providing people with solid nutrition,” said Mark Paulsen, the Founder of Wilderness Athlete and the Strength and Conditioning Coach for the University of New Mexico. “Exercising is extremely important when you want to lose weight but eating the proper diet is crucial.  Our 28 Day Challenge promotes a healthy diet by providing supplements and meal replacement products that offer sound nutrition. Combine these products with exercise and people can quickly lose weight.”

From the great tasting Meal Replacement Shakes, the Multi-Vitamins that contain the vitamins and minerals a person needs, the Green Infusion’s 6 servings of fruits and vegetables, to the Hydrate & Recovery and the Energy & Focus drinks, this system contains everything a person needs to start eating right. This is the first step in living a healthier lifestyle.*

*These statements have not been evaluated by the Food and Drug Administration.  This product is not intended to diagnose, treat, cure, or prevent any disease.

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Product Reviews

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  1. Great product. Taste good as well.

    Posted by Unknown on 17th Nov 2015

    Product tastes well and the wilderness athlete bottle was an added bonus. Only thing was the journal and information was not sent with order and I had to scramble around and was able to find it on internet so I could start the 28 day challenge instead of waiting for it to be shipped. Just on day 4 but it is going well so far.

  2. Lost 16 1/2 pounds

    Posted by Mike M. on 28th Oct 2015

    I started the 28 day challenge on 9/28/15. I followed the guidelines (using the products and adhering to the meal suggestions) fairly well with the exception of the last week. That week I deviated considerably (too many social functions) and added "adult beverages" to my diet. Due to that change I only lost 1 pound the last week. I am CONVINCED that had I followed the plan as I had done the first weeks I would have lost close to 20 pounds. I am 57 and was modestly "active" during the challenge. I highly recommend it and it will work.

  3. Happy to recover

    Posted by Recover Faster on 8th Oct 2015

    I have not used the product long, just 5 days. I am doing the 28 day challenge, my hope is to recover faster from workouts and drop some weight while increasing my lean muscle. After my 4th day I am not as tired after my workout, that I am happy about. I will also write a review at 28 days.

  4. Great tasting

    Posted by Danielle on 4th Sep 2015

    I am only on day 4 of my 28 days but this is the best tasting product that I have yet to try. I have lost 4 pounds and I honestly have not worked out like I should be due to my schedule. So just by drinking and eating like they suggest in the book I have been pretty successful. I would highly recommend this product.

  5. Exactly as expected

    Posted by Chris on 4th Sep 2015

    I lost 16 lbs and have more energy and motivation. Looking forward to heading up the mountain with less weight and more stamina. Just as described.

  6. unknown

    Posted by Mike on 15th Aug 2015

    Have not yet started will let you know 28 days from Monday August 17. I am giving a 5 based on the quick delivery and support have not yet started

  7. Great Energy Booster!

    Posted by Patrick on 6th Aug 2015

    I was trimming down after being out of commission last hunting season. I had plateaued at 20 pound weight loss. After completing the 28 Day Challenge, I have lost another 14 pounds. My energy levels are up and my endurance is amazing. Thanks for the great product.

  8. Good Program

    Posted by Ron on 30th Jul 2015

    The program works, no doubt. I really like the tracker and the scheduling. The meal replacements keep you feeling full and have a lot of energy. Only one week into the program and feel great. The only improvement is the taste of the meal replacement, not terrible taste but wouldn't classify it as tasty either.

  9. Awesome product

    Posted by Ryan on 29th Jul 2015

    Just started the 28 day challenge and coupled with just 30 minutes of cardio a day I have lost 6 lbs in 5 4 days. All the products taste very good and I have just added the green infusion in with the morning meal replacement and can't even taste it. Very happy so far and plan on keeping wilderness athlete a part of my daily diet and training for a long time.

  10. Great product

    Posted by Unknown on 17th Jul 2015

    about 2 years ago I decided I was going to start taking better care of myself. Bout a year later I found myself stuck 15 lbs from my weight loss goal. I had heard of the 28 day challenge and decided to give it a try. After the 28 days were up I felt better than I had in years. Over the past 2 years I went from 362 lbs to 237 lbs. The 28 day challenge helped me achieve my weight loss goal.

Showing reviews 1-10 of 39 | Next

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