However, the World Organisation for Animal Health has acknowledged the need to protect antibiotics but argued against a total ban on antibiotic use in animal production.[83] A total ban on antibiotics might drastically reduce protein supply in some parts of the world,[84] and when use of antibiotics is reduced or eliminated in livestock through legislation or voluntarily, both animal health and welfare and economic impacts can be negatively affected.[85][86] For example, experiences from farms where antibiotic use has been cut back or eliminated in the interests of meeting a consumer demand for 'antibiotic-free' or 'reared without antibiotics' produce have been shown to have a detrimental effect on animal health and welfare.[87][88][89] When antibiotics are used sub-therapeutically (for animal performance, increased growth, and improved feed efficiency), then the costs of meat, eggs, and other animal products are lowered.[90] One big argument against the restriction of antibiotic use is the potential economic hardship that would result for producers of livestock and poultry that could also result in higher cost for consumers.