UK drug regulator, the Medicines and Healthcare products Regulatory Agency (MHRA) has flagged illegal sports supplements and their usage.The products may claim to boost user’s energy or muscle, but they could contain unapproved ingredients that can cause kidney failure, heart problems or seizures. Even legal supplements can cause harm. It the consumer is on medicine then the supplements could stop the medicine working properly. RSTV camera travelled inside some gyms and profiled few cases that went wrong.