How much fiber should I eat per day? Is there a limit? And is there any benefits towards fat loss?

What is the difference between Essential and Branch Chains? Does one have an advantage over another? How would they impact IF?

I stared at 286 a good 4 months ago with my strength low, now im at 279 and i feel my strenthg is way stronger (bench started 225lbs 5x7 now 315lbs 5x5 squat start 225lbs 5x7 now 405lbs 5x7 curl 25lbs 5x7 now 50lbs 5x7 etc.) How much more should I lose then recalculate my caloric deficit and will I lose alot of strength while trying to drop a good 40-60 lbs fat? I hear building muscle will help boost metabolism and burn more fat, am I on the right track?

Im 27 yrs

5'9

@ 279lbs

What is the best workout split for muscularity and strength as to getting lean? Is there a rep and set range as well for these goals?