Milk proteins help in uptake of nutrients and vitamins1
Soy protein can have a beneficial role in obesity by
limiting or reducing body fat accumulation2
Dual protein provide essential amino acids3-6
Leucine is essential for protein
synthesis and cell metabolism
Arginine is required for optimal
growth and development
Isoleucine supplementation is
beneficial in children suffering
from diarrhea
Glutamine is essential for cell
proliferation and enhances cell
function
*From 2 servings # % RDA for protein is calculated for children (4-6years); TM:Trademark under licence from Signutra Inc., USA

References:
1. Hoffman et al. Protein – Which Is Best? Journal of Sports Science and Medicine. 2004; 3:118-130.  2. Velasquez MT, Bathena SJ. Role of Dietary Soy Protein in Obesity. Int J Med Sci 2007; 4(2):72-82.  3. Yang J et al. Leucine metabolism in regulation of insulin secretion from ancreatic beta cells. Nutr Rev. 2010; 68:270–279.  4. Scibior D, Czeczot H. Arginine--metabolism and functions in the human organism. Postepy Hig Med Dosw (Online). 2004;58:321-32.  5. of Acute Diarrhoea in Children: A Randomized Controlled Trial. J Health Popul Nutr. 2011; 29: 183–190.  6.Wilmore DW, Shabert JK. Role of glutamine in immunologic responses. Nutrition. 1998; 14:618–626.