Not the point smarty pants. It's lies for profit, not "marketing". I cannot lie to people and sell them something that does not work under the guise of whatever. This discipline, bodybuilding combines several sciences. Why not teach kids and young adults or the public the truth? Is it so hard to do?
they sold protein powder.
the buyers of the protein powder expected muscle gain and/or weight gain.
the buyers experienced muscle gain/weight gain.
doesn't matter WHY it works, or WHY they tell you it works, as long as #1 it doesn't harm you (like with pro-hormones) and #2 you get the desired effect.
if I buy a car, I expect that when I push on the gas peddle, the car will go faster.
now, if the car salesman says the car goes faster because of "atmospheric vacuum pressure sucking air through the motor and transmission spinning all the gears", who cares if he's wrong, so long as the car goes faster?