Creatine vs Parents Some chick at gnc said creatine could mess up your kidneys if you don't drink alot of water.
Creatine vs Parents Tell them to research it, and if they find anything bad about it they can restrict you from buying it. Otherwise, if they choose not to research it, or dont find anything bad when researching it, then you are allowed to take it. I did that with whey protein for my parents, it will work with creatine too if i decide to take it sometime in the future. They both are chemists and are fact/research oriented, so reading those studies and research would persuade them easily to let me buy it
Creatine vs Parents well you may not even need it. However, if you get to the point where you eat so much that your fridge is constantly empty and your parents get upset, maybe they would reconsider on the creatine.