I would say yes. As it’s been pointed out, it helps with recovery and aggressiveness. How do you think these fighters are able to train and go through such arduous training camps and still compete at such a high level? PED’s. Technically anything can be a PED. Supplements, training in general and anything that gives you any kind of advantage whether from a banned substance or not can be a performance enhancer. Do I think that it should mean everyone should be on steroids? No. But in order to purge this problem from the UFC, all fighters would need to be drug tested at the same time. All gyms and training facilities would need to be heavily monitored and supplements would have to be identified to see if its “tainted”. I’m sure there is a list of supplements that have ingredients not listed on the labels that seem shady. When fighters such as Bisping say because they haven’t failed a drug test, therefore they’re clean, it’s both amusing and annoying. I take random drug tests, as part of my probation. I smoke weed. Weed is in your system for weeks. You know how many drug tests I’ve failed? Zero. Not failing a drug test doesn’t mean squat. All fighters in the UFC are on some kind of PED tainted supplement that is considered banned or inexcusable. It’s just a matter of cleaning your system before being tested. As someone pointed out, PED’s go hand in hand in sports. Does that make it ok, no. But you can’t be in a sport and not expect to take supplements to give you an edge.