Complicate to profit is a tactic used by all sorts of industries to sell their products.
Few do it better than the fitness industry.
Endless streams of secrets, tricks and hacks all conspiring to make getting in shape appear more complicated than it really is.
In reality 99% of us will be able to derive all the benefits we want from exercise and nutrition by simply focusing on a few key areas:
Doing some sort of safe, intense and progressive training
Not sitting on the couch all day
Eating (mostly) real foods in quantities which match our goals
Getting plenty of sleep, rest and recovery
Obsessing over the minutiae is rarely important if you consistently apply these fundamentals.