To save me repeating myself....I will link
this .
Also remember that to an extent ideas of health and beauty are culturally influenced. It is ony recently since food has become abundant in the west, due in part to modern agricultural methods, that to be thin has been regarded as desirable.... before it was a mark of poverty (and a suntan marked you as a peasant).....
And there is plenty of evidence for elves enjoying a party ... I am sure even Sauce wouldn't mind propping up a bar with dear old Galion and suspect Esty may well be right about him

.....
As for the Might's quote ... it says desires of the body
only..... not that they don't have desires of the flesh.... it is quite clear in the rest of that essay that they enjoy the desire that it mainly refers to ... just that the enjoy it with one other only at a ceertain point in their lives........

.... and so with drinking/ eating ..... just because they don't go in for Rabelaisian levels of indulgence it doesn't make them ascetics.