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MET-Rx Original Meal Replacement - Original Vanilla, 18 x 72g Packets
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Originally developed by a physician, METAMYOSYN® protein is based on metabolic research to help support lean muscle mass.*

MET-Rx® “Original” Meal Replacement

METAMYOSYN® combines Milk Protein with slow-acting casein, plus L-Glutamine. Milk Protein is a natural source of whey and casein, for fast and slow digesting properties, and each protein source within METAMYOSYN® provides naturally occurring Branched Chain Amino Acids - Isoleucine, Leucine and Valine. The precise combination of proteins in METAMYOSYN® offers a sustained release of amino acids and provides your body with a highly bioavailable fuel that helps support lean muscle mass and strength.*

  • 38 grams of the exclusive METAMYOSYN® protein blend to help build lean muscle.*
  • Free of Hydrogenated Oils, which means 0 grams Trans Fats.
  • Low fat to support a lean, healthy body..
  • 17-20 grams of carbohydrates^ to support muscle glycogen needs as well as energy levels at rest and during exercise.*
  • 25 Essential Vitamins & Minerals, with 100% DV Calcium to support your body’s nutritional needs.
  • Aspartame Free
  • No added sugar**
  • Gluten Free

MET-Rx® Meal Replacement Powder is the foundational supplement for all athletes looking to improve their overall health and physique. It is a great-tasting way to make sure you are getting the balanced nutrition you need to reach your fitness goals.* Plus, our convenient packets mean you can take them whenever and wherever your athletic lifestyle takes you.

Balanced nutrition is important to anyone looking to create a lean, healthy body. One packet provides an excellent source of important vitamins and minerals with a proper balance of carbohydrates, proteins and fats, plus electrolytes. This combination helps keep you on track in and out of the gym.

Why take chances with your meal replacement - trust the unique METAMYOSYN® protein blend.


METAMYOSYN® protein is a superior quality blend, which combines premium casein with milk proteins, plus L-Glutamine and naturally occurring Branched Chain Amino Acids from protein - Isoleucine, Leucine and Valine. The precise combination of proteins in METAMYOSYN® provides your body with a highly bioavailable fuel to meet your nutritional needs.

Casein is a slow-acting protein, which results in a more prolonged absorption rate to extend the delivery of amino acids to muscles. Milk protein naturally contains both whey and casein - to provide slow and fast-digesting properties.

MET-Rx® METAMYOSYN®, Trust the Original!

*Use in conjunction with an intense daily exercise program and a balanced diet including an adequate caloric intake.

Directions: For adults, add one (1) packet to 16-20 fl. ounces of cold water or milk and mix thoroughly in a shaker or blender. Increase or decrease the amount of liquid to achieve desired consistency. Drink two shakes per day for best results. As a reminder, discuss the supplements and medications you take with your health care providers.

For Mass Gaining: add higher calorie foods such as peanut butter, 1-2% milk, and fruit juices.
For Dieters: add lower calorie foods such as skim milk or just use water.

Use MET-Rx® Meal Replacement any time of the day including:

  • Immediately After Exercise: Makes an excellent post-workout shake by providing proteins for muscle support plus slow digesting proteins for extended amino acid delivery and recovery.*
  • With Meals: Drink along with your meal to increase the overall protein quality and content. You can also mix into oatmeal or add to recipes such as pancake and waffle mixes.
  • In Between Meals: Keeps levels of amino acids elevated so your body doesn’t go into a catabolic state that may otherwise lead to muscle loss.*
  • Before Bed: The high content of slow-digesting proteins in MET-Rx® Meal Replacement makes it a perfect before-bed supplement as it provides “time-released” amino acid delivery to your body.

WARNING: If you are pregnant, nursing, taking any medications, planning any medical or surgical procedure or have any medical condition, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur. Not intended for use by persons under the age of 18.


Supplements Canada, or the operating company, will not be held responsible for any product information and ingredients,
or any ingredient changes of this product, or any product our company carries.

**The products and the claims made about specific products on or through this site have not been evaluated by SupplementsCanada.com or Health Canada and are not approved to diagnose, treat, cure or prevent disease. The information provided on this site is for informational purposes only and is not intended as a substitute for advice from your physician or other health care professional or any information contained on or in any product label or packaging. You should consult with a healthcare professional before starting any diet, exercise or supplementation program, before taking any medication, or if you have or suspect you might have a health problem. Information about each product is taken from the labels of the products or from the manufacturer's advertising material. SupplementsCanada.com is not responsible for any statements or claims that various manufacturers make about their products. We cannot be held responsible for typographical errors or product formulation changes. Sport supplementation should be used by persons 18 years and older.