Pokémon X and Y Playthrough Discussion

Can anyone confirm that using proteins and etc can still give you 100 ev max in a stat if used first? If so, that in combination with super training will be awesome.

I think it's the same as before. You can only use vitamins if that specific stat isn't over 100 or you've maxed all your EVs already. Each vitamin still adds 10 EVs to a given stat. So starting at 0, you can use 10 for an instant 100 EV. Doing that really does shorten the EV training by almost half.