All products related to lactase, casein, paracasein, milk white and few lipoproteins may add the value to milk products. There are more 90 bi-products which are made from milk as well as from milk proteins. Yogurt, curd, cheese etc are products which are widely prepared from milk.
My field is equine milk. A study demonstrated that mare’s milk colostrum as active principle in an emulsion of palm oil proved to be an interesting tissue repair agent and its biological action is located chiefly in the fat globule fraction. Ten persons suffering from diabetic ulcers received treatment with the formulation twice a day for 20 weeks until complete wound recovery. Reference: Zava et al., Journal of Medicinal Food 12 (4) 2009, 836-845.
Furthermore, there are studies regarding the functions of equine lysozyme, in particular its multimeric complexes with oleic acids, which were shown to possess properties similar to amyloidal aggregates and to be cytotoxic. These studies regard the possible employment against tumor cells. Ref.: Nielsen et al., Journal Mol. Biol. (2010) 398, 351-361; Malisauskas et al., Biochemistry (Moskow), vol. 71, 5, 505-512 (2006)
Milk from grazing ruminants is richer in polyunsaturated fatty acids, namely in conjugated linoleic acid (CLA). CLA presents potent anticarcinogenic effects and also affects the immune system and the lipid metabolism.
For a rewiew see: http://www.sciencedirect.com/science/article/pii/S0301622699001177