unless you're min-maxing, then the general increase food gives is negligible.

it does make a very real difference tho, as someone above said, when trying to meet arbitrary points. Most obv of these is acc cap, but also speed. I need a certain amount of SS to get off a fifth fire IV under leylines and back into b3 before af drops. I don't meet it without flaugnarde. I think the melee in my static also operate under similar conditions, I know they like an exact amount of skillspeed to fit enough GCDs under certain buffs