"Formulators who want to include both whey and casein proteins in their beverages often will use milk protein concentrate ingredients, which are concentrated milk powders containing 40% to 90% milk protein. They contain casein, whey proteins and bioactive pro-teins in the same ratio found in milk. As the protein content increases, the lactose (milk sugar) levels decrease. A high-pro-tein, low-lactose ratio makes it ideal for protein-fortified beverages...Kaffi Icelandic Protein Coffee is a new range of refrigerated coffee milks from Smari Inc., Petaluma, Calif. Milk protein concentrate boosts protein content to 10 grams per 8-oz bottle." 

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