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MYOS Canine Muscle Formula with Fortetropin®

MYOS Canine Muscle Formula is powered by Fortetropin, an all-natural advanced nutrition product made from raw fertilized egg yolk that has been clinically proven to help build muscle and reduce the rate of muscle loss due to aging or injury.  MYOS is consumed in a powder that dogs love!

Veterinarian Recommended. Veterinarians reported that older dogs engaged in more physical activity after consuming Fortetropin® and resumed certain activities that were thought to have stopped because of age.

Fortetropin® is all about muscle health but it also contains many essential amino acids, vitamins and minerals that support healthy skin, a shiny coat, bone health, cognitive health and improved vision!




"I have a 10 year old boxer. Over the past year, he had been steadily losing weight, experiencing muscle loss and weakness mostly through his hind quarters. After only 2 months on MYOS, he has regained 4 lbs of muscle! I have used the supplement under my Vet's supervision and checking blood work. My Vet confirmed the muscle is coming back in his hind quarters." - Amazon Customer

"Our dog Diesel was experiencing sudden muscle loss and suffering with a heart breaking limp.I tried MYOS after trying laser therapy, acupuncture and swim therapy with no success. I am happy to report with the addition of this supplement and continued water therapy that Diesel is almost limp free and running again!" -HB, Washington


A randomized, double-blind, placebo-controlled study was performed at the University of Tampa to evaluate the impact of Fortetropin on muscle mass.  Young men, 18-21 years old, were randomly assigned to consume either Fortetropin or placebo for 12 weeks while performing supervised resistance training twice per week.  A dietician worked with each subject weekly and prescribed an individually based diet such that over the course of the study there were no statistical differences in total calories and macronutrients between groups. The key findings were:

  • Subjects who consumed Fortetropin experienced ~3-fold gains in muscle mass when compared with subjects who received placebo.
  • No significant change in serum cholesterol levels in any group.
  • There were no adverse events reported during this clinical study.


Small Dog 0-24lbs: 1 scoop daily

Medium Dog 25-50 lbs: 2 scoops daily

Large Dog 50+lbs: 4 scoops daily

120 scoops/container per 12.7 oz (360 g)



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