Synonyms for Abstemious (same or very similar meaning)
WordNet sense 1 (marked by temperance in indulgence):
lightWordNet sense 2 (not extreme in behavior):
temperateWordNet sense 3 (practicing great self-denial):
ascetic, austereWordNet sense 4 (self-restraining; not indulging an appetite especially for food or drink):
abstinentFrom the ODE community, based on WordNetadd/edit