MYOS Feline Muscle Health Formula, 180g (180 scoops)

All-Natural Fortetropin® Powder for Feline Muscle Strength & Healthy Aging

Product Description

MYOS Feline Muscle Formula is an all-natural, single-ingredient powder supplement designed to support muscle health, reduce muscle loss, and promote vitality in cats of all life stages. Powered exclusively by Fortetropin® — a patented bioactive ingredient made from 100% fertilized chicken egg yolk — this formula is clinically studied to help build lean muscle mass and reduce age-related muscle atrophy in cats. With no additives or artificial ingredients, it also delivers natural vitamins and minerals that support skin, coat, eye, bone, and cognitive health. Made in the USA, it is veterinarian-recommended and has been shown to be safe and well-tolerated in felines across a range of doses in clinical research.

Benefits

Builds Lean Muscle Mass: Fortetropin® is clinically researched to help cats build and maintain lean muscle, making it especially valuable for senior cats experiencing sarcopenia or age-related muscle wasting.

Reduces Muscle Atrophy: Helps slow down muscle loss caused by aging, illness, surgery, or reduced activity, supporting better body condition and endurance in cats at all life stages.

Improves Mobility & Vitality: Supports muscle tone and flexibility, helping cats move more comfortably and remain active as they age.

Supports Skin, Coat, Eye, Bone & Cognitive Health: Natural vitamins and minerals within Fortetropin® provide additional whole-body benefits beyond muscle support, nourishing multiple systems.

Single, Clean Ingredient: Contains only Fortetropin® (100% fertilized chicken egg yolk powder) — no additives, artificial ingredients, or fillers — safe for long-term daily use in cats.

Ingredients

Active Ingredient per 1g Scoop (¼ tsp): Fortetropin® (100% Fertilized Chicken Egg Yolk Powder) — 1 g

Key Nutrient: 8 mg Phosphorus per 1g serving

Nutrient	Amount

Calories

6.5 kcal

Total Fat

0.55 g

Saturated Fat

0.20 g

Trans Fat

0 g

Cholesterol

22 mg

Sodium

0.95 mg

Total Carbohydrates

0.07 g

Dietary Fiber

0 g

Protein

0.33 g

Vitamin A

7.8 mcg

Vitamin D

4.5 IU

Vitamin B1

0.01 mg

Vitamin B2

0.01 mg

Vitamin B5

0.06 mg

Vitamin B9

3 mcg

Calcium

2.65 mcg

Iron

0.06 mg

Phosphorus

8 mg

Zinc

0.05 mg

Magnesium

0.1 mg

Note: Although MYOS Feline Muscle Formula is made from 100% fertilized chicken egg yolk, it does not contain any chicken meat components.

How to Use

Dosage & Administration Instructions

Cats up to 10 lbs: Give 1 gram (1 scoop / approximately ½ teaspoon) daily.

Cats 11 lbs and over: Give 2 grams (2 scoops) daily.

Mix with Food: Sprinkle or stir the powder into your cat’s wet food or regular meals; most cats accept it well when mixed evenly.

Introduce Gradually: Begin with ¼ of the recommended dose and ramp up over 5–7 days to the full dosage to allow your cat to adjust.

Daily Use Recommended: For best results, use consistently every day; improvements in muscle mass and mobility may take several weeks, particularly in senior cats.

Scoop Included: A 1g measuring scoop (approximately ½ teaspoon) is included in each package.

Additional Information

Precautions

Veterinary Consultation: Consult your veterinarian before starting this supplement, especially for cats with pre-existing health conditions, chronic disease, or those recovering from surgery.

Egg Allergen: Fortetropin® is derived from fertilized chicken egg yolk; cats with known egg sensitivities should not use this product without veterinary guidance.

Introduce Slowly: Always start at ¼ the recommended dose and increase gradually over 5–7 days to minimize the risk of digestive upset.

Store Properly: Store in a cool, dry place after opening; refrigeration after opening is recommended to preserve freshness and ingredient potency.

FDA Disclaimer: 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.

Possible Side Effects

Digestive Sensitivity: Some cats may experience mild vomiting or digestive upset when first introduced to the supplement; starting at ¼ dose and gradually increasing helps minimize this risk.

Individual Variation: Tolerance and results may vary between cats; some cats may not readily accept the powder even when mixed into food. If adverse reactions develop, discontinue use and consult your veterinarian.

Clinical Safety: A clinical study presented at the American College of Veterinary Internal Medicine (ACVIM) Forum confirmed that Fortetropin® is safe and well-tolerated in cats at doses ranging from 1g/day up to 4g/day.