Consuming protein powder does not usually affect creatine kinase. Normally, protein powder is mainly a powder made from purified soy protein, which, when consumed in moderation, can provide essential nutrients for cell growth. However, excessive intake may cause discomfort because the aggregation of substances produced by the breakdown of protein in the body may affect normal liver and kidney function. Creatine kinase levels are usually elevated after exercise, radiation therapy, cardiac compression, and injections of antibiotics, dexamethasone, and other drugs. Also under the influence of diseases such as myocardial infarction, dermatomyositis, pericarditis, etc., can lead to a situation where its level is elevated, while under the influence of hyperthyroidism, can lead to a decrease in the level of creatine kinase. In summary, eating protein powder does not affect creatine kinase, but it should be consumed in moderation. Patients who develop abnormal creatine kinase are advised to seek prompt medical attention and treatment.