'abstemious' definitions:

Sparing in consumption of especially food and drink; "the pleasures of the table, never of much consequence to one naturally abstemious"- John Galsworthy [ant: gluttonous]

Marked by temperance in indulgence; "abstemious with the use of adverbs"; "a light eater"; "a light smoker"; "ate a light supper" [syn: abstemious, light(a)]