Hello, Yes, exercising & taking plenty of water will help THC get washed out of the body system. But in the meantime, you will have to make healthy, nutritious homemade food in plenty. It effectively helps to do away with THC. If your metabolic system is good, you are young & have not been smoking pot for years (for a long duration). It will come out of the system faster. In case you are a chronic smoker of pot for years, you are suggested to get connected to a detox center, you may have withdrawal symptoms that will require to be managed urgently for a successful detox. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr. Nupur K, General & Family Physician