[chia]

Almost everything is beneficial, but MMA is so complex that it is all about priority. You can go overboard on conditioning, on strength training, on supplements, even training if it is cutting into your recovery time.

There can hardly be any detriment to being too strong, but sometimes stronger fighters learn to rely on strength and power instead of technique, and this can affect the way they learn certain techniques. They may get used to powering through certain moves and forget the technical aspects which can be detrimental when facing a larger opponent. Relying too much on strength can also drain the energy systems quickly and affect stamina (ala Mark Coleman vs. Mo Smith).

That said, I believe the majority of fighters out there could definitely benefit from increasing their strength levels, but it is up to them to figure out their own priorities as a fighter. All forms of training take a toll on the body and everyone needs time for recovery while avoiding injuries.