Of course I don't take any steroids, if my "fast" gain is healthy I am not sure.. but I can't tell if its all just muscle weight that I earned.
All I can say is that I don't count stuff I just eat how much I want, training was for me at least a hour per day but not at the weekend.

I'm a person that gains generally fast, my main protein sources are:
nettle tea
oats
eggs & milk
pea
gluten

And for supporting my nutrient uptake I eat:
Bananas(potassium for oxygen transfer into muscle)
legumes like sunflower seeds, almond, cashew, pumpkin seeds(also got some protein).

I almost forged a few, I also don't eat meat for years and don't have any kinds of disease and I feel good mentally/physically.

If you feel like you could need some informations about my lifestyle just ask me.