is considered unusual to the majority of cultures around the world, and most disapprove of such a practice. In Costa Rica, there have been trials to produce human cheese, and custard from human milk, as an alternative to weaning. Bodybuilders While there is yet no scientific evidence that shows that breast milk is advantageous for adults, according to several 2015 news sources breast milk is being used by bodybuilders for its nutritional value. In a February 2015 ABC News article one former competitive body builder said, "It isn't common, but I've known people who have done this. It's certainly talked about quite a bit on the bodybuilding forums on the Internet." Calling bodybuilders "a strange breed of individuals," he said, "Even if this type of thing is completely unsupported by research, they're prone to gym lore and willing to give it a shot if there is any potential effect." At the time the article was written, in the U.S. the price of breast milk procured from milk banks that pasteurize the milk, and have expensive quality and safety controls, was about $10 an ounce, and the price in the alternative market online, bought directly from mothers, ranges from $1 to $4 per US fluid ounce, compared to cow's milk at about $3.44 a gallon (about $0.03 per US fluid ounce). See also Blocked milk duct Breast milk jewelry Breast pump Human milk banking in North America Infant formula La Leche League International Lactation Lactation room Lactivism Mary Rose Tully References External links Drug Interactions with Human Milk Human milk and lactation by Carol L. Wagner (Overview article, eMedicine, December 14, 2010) United Nations University Centre – Constituents of human milk – including comparison of human and cow's milk ones Children's Health Topics: Breastfeeding A comparison between human milk and cow's milk and The composition of cow's milk Meigs, EB (August 30, 1913) The comparative composition of human milk and of cow's milk, J.Biol.Chem 147–168 Breast Breastfeeding Body fluids Neonatology Midwifery Milk by animal Immunology Babycare