Start your day off right with the deliciously smooth goodness of a2 Milk®. a2 Milk® Whole Milk is high-quality, real milk from cows that naturally produce ONLY the A2 protein and no A1. It is easier on digestion and published research suggests a2 Milk® may help avoid stomach discomfort in some people. Feel the a2 difference! Ultra-Pasteurized, 59 fl oz.