Disclosed herein are methods and compositions for alleviating side effects of statin administration, such as myopathic or myalgic side effects, short-term memory loss, abnormal liver function, glucose intolerance, hyperglycemia, increased risk for diabetes, or cumulative trauma disorder, comprising administration of ß-hydroxy ß-methylbutyrate (HMB) and leucic acid to an individual taking a statin. Also disclosed are methods and compositions for alleviating acute rhabdomyolysis, and methods and compositions for treating cumulative trauma disorder, comprising administration of HMB and leucic acid. The disclosure further provides uses of HMB and leucic acid in combination with a statin to alleviate side effects of statin administration, treat statin intolerance, treat cumulative trauma disorder, and treat acute rhabdomyolysis.