Metr-Rx Updates Metamyosyn Protein Blend with Isolate Backbone

Metr-Rx Updates Metamyosyn: For anyone who grew up in the 70s and 80s you will likely recall the first time that you ran into a giant chalky protein bar from Met-Rx in the 90s and if you were into the bodybuilding game by then it was a mind blowing concept that you could smash this candy bar shaped brick and get your protein for the next few hours. Then the original Metamyosyn protein was released and came out where it was split between two separate tubs. One was a whey protein and the other a micellar casein type protein. You combined each protein together for the ultra-powerful synergy that was unheard of at the time. This was wayyyy before the days of retail walls of protein the multi billion dollar industry we see today of protein powders. The stuff was expensive but the quality was extremely high and almost better than today’s innovations. Of course we saw what has happened between then and now (*cough* Amino Spiking).

After Met-Rx themselves fell from the throne of protein superiority and the company bounced around different owners, shapes, and forms, its now in a solid place with new positioning in retail giants and on amazon. Their newest news is that they have updated the Metamyosyn® blend of their protein to the newest form using their latest research and protein sourcing options. They even switch to a completely transparent protein blend, declaring exact amounts of each protein source. Who would have thought from Amino Spiking we would land here at transparent proteins and surplus sources of high quality whey across the world.

Metr-Rx Updates Metamyosyn Protein Blend 24g

  • Whey Protein Isolate 8g
  • Whey Concentrate 7.5g
  • Milk Isolate 6g
  • Egg Whyte Protein 2.5g


  • Total Carbs 6g
  • Sugar <1g
  • Fats 4g
  • Calories 140

Metr-Rx Updates Metamyosyn Flavors

  • Chocolate Molten Cake
  • Vanilla Snickerdoodle
  • Peanut Butter Stuffed Cookie
  • Pineapple Upsidedown Cake

Currently available in a 4lb size ranging from 47 to 51 servings and some flavors are not available, but look for that to be remedied soon and more sizes to come as more retailers access the newly minted and updated Metamyosyn® Blend of protein from Met-Rx


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