A lot of guesses here but I will attempt it. Back in the day when Robby competed no one used insulin. Growth hormone was really unheard of but talked about it. They didn't know how to synthetically make it yet and it only came from the pituitary of cadavers from the morgue. When aids broke out now one in their right mind would touch the super expensive GH. No oil injections were used either. The steroids used came from pharmacies from real pharmaceutical drug companies. Now the steroids are counterfeit to look like it came out of a pharmaceutical company. The counterfeit boxes and inserts the steroids are boxed in are coming out of China and other hell holes. No one truly knows what is in the crap they are injecting. All they have are bro knowledge of "Joe" really blew up with the crap Frank is selling out of his trunk from a shipment he got in. All the pros today look soft and bloated. I suspect they are all taking the same crap. What it really is nobody knows. Back in the day a guy would blow up with two dianabol a day. If you took two a day now nothing would happen. One anadrol 50 worked like, well a powerful anabolic steroid. Now I hear guys are popping many Anadrol 50 on top of other steroids. The craziest stuff guys injected back then were steroids meant for horse but was just injectable Winstrol. No one back in the day that was a bodybuilder would use testosterone. That's what some power lifters took but for bodybuilding it wasn't a thing. The reason anabolics were created was because of the side effects of using too much straight testosterone. The US dominated Olympic lifting back in the day then the Russians started injecting straight testosterone. They packed on strength at a rapid and amazing rate putting the Americans on their ass in Olympic lifting. Then it was learned many of them were suffering from an enlarged prostate and couldn't urinate without a decather. Then the race was on in the US for a steroid that had all the growth promoting properties of testosterone while limiting the androgen properties. That's when dianabol was made. The first anabolic steroid. Many others quickly followed of an anabolic steroid limiting somewhat the androgen properties. Actually real Anavar not the crap sold today was rated as the biggest ratio of anabolic to lowest androgen. The problem was anavar was really a somewhat mild anabolic even though it had the best ratio. Train naturally and forget the drugs. You won't be able to stand on stage buy you will be muscular and healthy for decades instead of yo yoing from muscular to a slob and back.
Yup. I was there too. I knew guys that took 3 Dianabol a day and got excellent results both in muscle size and strength. They also got off when the contest season was over. Growth hormone was from cadavers and few could afford it dollar wise, let alone the fear of possible side effects that might occur. I had a friend on those 50mg of Anadrol (or was it Anavar?) that started out with one a day and thought he would up the dose to see what would happen. At three a day his urine got real "cloudy" and he started to get sick and immediately stopped everything. As with all drugs there is an effective dosage and that is pretty much what people took as most of them went to a real doctor for their prescriptions.
Today it's prohibition-like bathtub drugs. What kind of fool does that to themselves? Answer - An insecure manlet. It should have stopped in the 70s but people's egos became the biggest thing about them and those egos need to be fed.
Too bad. Heath isn't shit with or without his drugs. He's a pathetic imitation of Mr. Olympia and a worthless bugger of a human being.