Dietary Supplement. Ready to drink. 35% Fewer calories than Myoplex Original. 25 g High quality protein. 26 Vitamins & minerals. Naturally & artificially flavored. Great tasting. A quick and convenient meal supplement that fits your demanding lifestyle. Whether you enjoy Myoplex Lite bars or a rich and creamy shake, you can be sure that you are getting the nutrients you need to maintain lean body mass without the extra calories. The nutrition you need to build your strongest, healthiest body. Myoplex Lite. 200 calories; Myoplex Original, 310 calories. Heart Healthy: Diets low in saturated fat and cholesterol that include 25 grams of soy protein a day may reduce the risk of heart disease. One serving of a Myoplex Lite Ready to Drink provides 6.25 grams of soy protein.