After delving into the provided article by USA Today and the sources the article provided, it is generally safe to take creatine with precautions. USA Today's article explores what creatine is, the health benefits of taking creatine, and even potentially the adverse side effects. Two additional sources are provided along with expert opinions given by three registered dietitians from various clinics. The first source mentioned is the Mayo Clinic. The article links research the Mayo Clinic has conducted regarding creatine's effects. There were various positive effects creatine had; such as improving performance during cognitive tasks, reducing the frequency of muscle injuries, dehydration, and many more. However, the Mayo Clinic took care to mention an older study suggested that creatine actually worsened kidney functions for specifically people with kidney disorders, although more research would need to be conducted.
Another source USA Today's article mentioned is the National Library of Medicine. This source delves into more detail regarding creatine and even its functions. Essentially, the National Library of Medicine concludes to the same consensus as the Mayo Clinic, however, providing additional studies. For example, during research, studies show that heart failure patients who were given creatine supplements had improvement in muscle strength and endurance. Overall, the National Library of Medicine did find overall that creatine is generally safe, however, except for those affected by kidney damage, although more research would need to be conducted.
https://pmc.ncbi.nlm.nih.gov/articles/PMC8067763/
https://www.mayoclinic.org/drugs-supplements-creatine/art-20347591
https://academic.oup.com/cardiovascres/article-abstract/30/3/413/266218?redirectedFrom=fulltext