Ultimate Fitness Stack
Ultimate Fitness Stack
Ultimate Fitness Stack
Ultimate Fitness Stack
Ultimate Fitness Stack

“This is by far THE BEST stack I’ve used for serious energy and incredible results.”

— Jonathan T., Crazy Nutrition Customer

Crazy Nutrition’s Ultimate Fitness Stack

The Ultimate Fitness Stack by Crazy Nutrition is the best jump-start package that can help athletes of all skill levels maximize their energy, stamina, muscle build, and focus.


Ultimate Fitness Stack by Crazy Nutrition was formulated as a way to cut through the noise and confusion of the never-ending list of weight loss and bulking supplements on the market and give you only the ones that matter.

We believe these three core supplements can help any athlete, no matter their size or skill level, achieve the body & health they deserve.

Included In Crazy Nutrition’s Ultimate Fitness Stack:

  • CRN-5 is a creatine formula made with 5 types of creatine plus added electrolytes for muscle hydration so you can lift harder and recover faster.
  • Tri-Protein is a delicious protein formula made with 6 types of natural proteins that are absorbed in 3 different rates for longer-lasting muscle build & recovery.
  • Pre-Train is a sugar-free pre-workout formula containing 19 natural ingredients to help ignite the brain and body for intense focus, drive, and energy like never before.

Everything You Need To Maximize Performance

  • Strength Watch your reps go up
  • Weight Help support fat-burn
  • Build Increase protein
  • ATP Energy Fuels the brain & body
  • Recovery Improve muscle recovery

Works For All Athletes

  • Gym
  • Track
  • Outdoors
  • Crossfit
  • Resistance Training

Ultimate Fitness Stack by Crazy Nutrition is formulated to be taken in
conjunction with your daily workout or exercise routine.

  • STEP 1

    minutes prior to working out.

  • STEP 2

    Enjoy CRN-5 after your workout to
    help with recovery & muscle build.

  • STEP 3

    Have a delicious glass or two (or three) of Tri-Protein to help build muscle, support recovery, and suppress appetite.

“When it comes to supplementing my nutrition, I choose only the best formulas made with high-quality ingredients. Crazy Nutrition’s Ultimate Fitness Stack is by far the best, all-in-one stack out there today! It’s helped me keep my head in the game and given me that extra push to go harder. Not to mention, they taste absolutely fire.”

Nick Manning
Fitness Model

“Love how simple and easy this [Crazy Nutrition] stack is. I like how the formulas complement one another with an overall goal to get you ripped, shredded, and feeling amazing! This is a must-have for any beginner or expert athlete that wants to bring out their best.”

Men’s Physique Athlete

You’re 100% Covered By
Our Crazy 60-Day Guarantee

We’re so confident you’ll experience the results you’re looking for, we offer a no-hassle,
100% money back guarantee.

Try us for 60 days, free of risk, and if you do not see and feel a difference in your
performance, then we’ll refund your investment and won’t hold it against you.

Order Now

60-day, 100% money back guarantee

What are people saying about Crazy
Nutrition’s Ultimate Fitness Stack formula?

Customer Reviews
4.7 Based on 10 Reviews
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Filter Reviews:
Bryan T.

I've never seen my reviews strange

I've never seen my reviews strange...

Timothy J.
United States United States

Great stack!

I truly enjoy your products and have had great success with them. The only down side is that it takes a very long time to get them in the mail.

Jeffrey N.
India India

Great quality!

I’m 56 and I’ve been lifting for 30+ years. I’ve tried hundreds of products. Most of them don’t do **** and taste like garbage. This stack is awesome! Gives me a ton of energy, even for an old guy like myself. But the best part is it tastes really great. Don’t have to choke it down. Worth the money.

Johnny E.
India India

Hands down the best stack

Delicious. Good price. Great quality. Actually works. What more do you want? I’ll be buying all three again.

Nathan L.
India India

Down 2 pants sizes already

The tri-protein is delicious and keeps me from snacking all day long. I’ve lost 20 lbs and I’m down 2 pant sizes so far. Great stack for the price.