This study is evaluating the effectiveness of the oral nutritional therapy serum-derived bovine immunoglobulin protein isolate (SBI) 2.5g BID and SBI 5.0g compared to placebo for 6 months on gastrointestinal symptoms, nutritional status and quality of life in HIV+ subjects with HIV-associated enteropathy. In addition, the effects of SBI on pro-inflammatory intestinal microbial populations, bacterial translocation, intestinal barrier function, and systemic immune activation will be investigated.