My thoughts
My beliefs:
1) Steroid use is not uncommon and gives unrealistic expectations for beginners. In general, all bodybuilding competitions, especially professional, will involve steroid use. Due to their legal status, they are not discussed as much as they should be (they are the most effective supplement by far) . Taking them is a personal choice and requires different training and nutritional approaches. I am pursuing the non-steroid route and all the following points assume non-steroid assisted training.
Sadly this is the truth; I only wish people using them were honest/testing was perfect.
2) The best way to gain muscle is progressive overload. i.e. increasing the weight lifted as often as possible, assuming correct form.
Rep range / time under tension matter a lot for muscle gain.
3) Compound lifts are more effective than isolation work.
Depends on the goal but generally yes.
4) Something like Stronglifts or Starting Strength is the best overall routine, especially for beginners.
I started with stronglifts, it's a fine place to begin your journey.
5) Concentrating on a few good exercises (e.g. squat, deadlift, benchpress, chinup, dips etc.) rather than many will result in more muscle gains.
Debatable but in terms of efficiency compounds lifts win hands down.
6) Eating frequency is irrelevant (assuming calories and macros are the same). The only exception is meal timing - calories consumed after workout will be more effectively utilised than calories consumed before. It is best to eat how and when it suits your lifestyle / work / gym times.
I eat when I'm hungry, that includes between sets
7) The rule of 1 g protein per lb of bodyweight is a reasonable approximation for optimal protein intake for muscle growth. A better one is 0.8 g per lb.
Too much protein leaves me feeling drained, I don't overly calculate it but 0.8-1g is probably what I aim for.
8) More protein should be consumed when cutting to preserve muscle. A reasonable approximation is 1.5g per lb.
What's cutting?
9) In order to build muscle, the weight on the scales (by eating more) and the weight in the gym should be increasing.
I'm 99% of cases that is correct, in short stretches my strength has increased whilst in a calorie deficit (though that's strength gains, not muscle gains)
10) In order to lose fat, the weight on the scales (by eating less) should be decreasing while trying to increase or maintain the weight in the gym. Some strength loss is unavoidable.
Depends on the rate of loss you're aiming for.
11) Working a muscle every 4 days is a reasonable frequency.
Frequency isn't reasonable or unreasonable, it's a variable you will manipulate to achieve a goal. Currently I'm benching 4x, squatting 3x and deadlifting 3x a week.
12) Cardio is optional. It has both positive and negative effects on strength training and muscle growth.
Long stints on the treadmill = optional
Conditioning to maintain health or work capacity = necessary
13) Diet is 75% of the results. Too many calories = too fat. Too few = slow or no muscle gains. Supplements (ignoring steroids) are about 5% of the results.
Training stimulus, rest and nutrition have to be balanced, there's no fixed % for these.
My results: (all figures given relative to bodyweight for comparison).
A comparison formula like wilks is much better at comparing relative strength than bodyweight.