ProSource Plus Liquid Protein, New Flavor Orange Cream, 32 oz Bottles. A Collagen & Whey Protein Formulated High Protein Supplement. 100% Indispensable and Dispensable Amino Acids. *15 grams of protein per ounce. *Lactose and Gluten Free. Liquid proteins can be served as a med pass or mixed into the patient s favorite beverage for the best tasting liquid protein supplements ever! Appropriate for use with multiple conditions: The nutritional profile of ProSource Plus Liquid Protein makes it suitable for a wide variety of conditions. ProSource Liquid Proteins are clinically proven to raise albumin levels in hemo-dialysis patients. Packaging: 4 Bottles/Case.