You you believe that diet and training is 90-95% of it?
I think it is 100% of it personally. Everything else gives 'edge'.. but it is diet and training that will give gains for the rest of your life.
Anyway, health and fitness morality aside; For a 'regular' trainee who wants to stay lean and look 'fit' then adding protein powders is more for convenience, sure.
I mean if one cannot eat 100g of protein a day (well above the regular UK/US diet, and more than enough to support anabolism in a general fitness trainee) then they are just lazy - and most general trainees are when it comes to working for results, in the kitchen in particular.
But for a steroid using BB who is aiming to build as much muscle tissue as humanly possible, a protein powder is an absolute necessity to get in a minimum of 350g a day and some even upto 700g/day.
I personally do not consider carbohydrate or protein powders 'supplements' - they are food sources too aiding the achievement of daily targets. I simply could not get or afford to eat as much protein as i do without my food supplements.
Also, to suggest that any of the main supplements that have been mentioned here are less than worthwhile, would be seriously short changing yourself (ribose, HMB, Leucine, BCAA.. whatever - all the ones mentioned are steadfast, effective supplements proven to achieve results - more than can be said for the majority of PH's and often much cheaper too).
Not to mention you want to use Anabolic Androgens WITHOUT the androgenic side effects. Generally speaking it is fairly well understood that if you don't use an aromatising compound for fear of 'Gyne', you will be using something that has a higher activity at the Androgen Receptor.. and if it is a mild androgen and non-aromatising, it really is not worth the inhibition.
I am not saying this for no reason, but if you don't want to aggravate your MPB, then you will need to use Prescription drugs alongside the androgens, or not use them (seeing as you are apparently susceptible to MPB).
IME of the PH you read up on, the banned ones on Bigcats profile (i have read it too, a few years ago now) they were nowhere near as effective as AAS, significantly more expensive, and i honestly got comparable gains from adding ribose and Creatine, with NONE of the sides those products did cause.
This was with the PH's that were banned a long time ago now, and the ones that rem,ain are less effective than that.
PH and DS ARE a marketing jungle.. they are often old pro-steroids that were dropped from testing in the 60's onwards, due to unsuitability or simply not having the effect they required of the compound.
The supplement manufacturers only need to state that the chemical is 'related' to a well known and effective steroid, and they have a million dollar business.
The 'drugs' are weak anabolics and often high in sides, and always toxic - most of the kids who come here with gyno needing help have been using PH.
This is partly due to the high incidence of side effects of these products and partly due to the main market whom these products are aimed - naive young men who believe that this is all they need to really make the difference to their training.
You sound smart and fairly switched on, albeit dismissive and i am just advising you that IF you don't want androgenic OR estroegnic sides, then you will either need to use prescription only drugs bought on the black market to use them, or you will need to choose alternatives - ie. Non-PH supps.
Plus lastly, IF you are going to be buying legal drugs illegally, for the control of the sides caused by the PH's - you may as well save money and improve results by using real AAS.
See the point? Legal PH's need prescription drugs to control the sides as do illegal steroids (depending on country).