甘いものは控えているんです。

sweet-tasting; sweet; sugary; sugared; fragrant (smelling); sweet (music); lightly salted; light in salt; not spicy; naive; overly optimistic; soft on; generous; indulgent; easy-going; lenient; half-hearted; not finished properly; insufficient; not satisfactory; inadequate; loose; mild; tempting; enticing; luring

person

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

to be temperate in; to refrain; to abstain; to hold back; to restrain oneself from excessive ...; to make notes; to jot down (e.g. phone number); to be in preparation for; to be in waiting for; to be soon; to be in the offing; to be in a close relationship (e.g. as a backer, etc.)

yes; yeah; uh huh; negative verb ending used in informal speech (abbr. of negative verb ending "nu"); abbr. of particle "no"; abbr. of particle "ni" (used especially when it precedes the verb "naru")

be; is