Well let's face it, it seems that another ancient elf trait is having nice physique. Just look at Solas - he's slender, like all elves, but there are some well-defined muscles underneath that nerdy, beige sweater, which always confused me.
I mean - he supposedly spent untold years in deep slumber; in fact it's implied that he spends quite a bit of time sleeping when with Inquisition to enter the Fade and according to WOT2 he is noted for eating very little, so... 
(and it's not just because everybody uses the same body model for the game, they specifically have more broad-shouldered model for him).
Is the Fade diet (maybe with a frilly cake from time to time) the best diet there is? 