Active8 Supplement Articles

Optimum Nutrition 100% Casein Review

Jul 20, 2016 | by: Team A8

I just finished my huge tub of Casein, 55 serving. I had the chocolate flavour.

Taste: 10/10. I usually don't get chocolate If I can avoid it, and I'm very picky when it comes to taste, I'll admit. But ON Casein tasted awesome, it was smooth and chocolatey, I would actually crave it at night.

Mixability: 7/10. Not so great, probably the worst aspect of the product. It mixed pretty well for the first 60% of the tub, but towards the end it would clump up, no matter how hard I shook it.

Value: 8/10. It's not cheap, no doubt, but two factors gave it good value: 1) It lasts a long time, and 2) it is very effective.

Effectiveness: I took this product to keep me from losing muscle at night and to keep me full at night, so I wouldn't wake up so hungry that I would go and eat terrible, unhealthy craving foods when I woke up. For both of those goals, ON delivered, I would wake up with a still slightly full stomach. But I also noticed more muscle gain over the course of the tub, and less soreness on nights when I used it, especially leg days.

Overall: 9/10. I've tried lots of samples of other time-release proteins, and while I can't really judge their effectiveness, I can tell you that ON casein is great tasting in comparison. I recommend this product to anyone who is trying to seriously build muscle. This easily became a staple for me!


  • Builds Muscle
  • Good Value
  • Tastes Great Compared To Other Caseins
  • Less Soreness Upon Waking
  • Amazing Taste
  • Helped Recovery
  • Not Hungry Upon Waking!
  • Helps Prevent Hunger During Sleep
  • Mixability Issues

Disclaimer: All information is generalized, presented for informational purposes only, not medical advice, and presented “as is” without warranty or guarantee of any kind. Readers are cautioned not to rely on this information as medical advice and to consult a qualified medical, dietary, fitness or other appropriate professional for their specific needs. This information has not been evaluated by the FTC, FDA or any other government agency and that this information is not intended to “diagnose, treat, cure or prevent any disease.” The opinions expressed in this article are the author's own and do not reflect the view of Active8 Nutrition, Inc.