Provided are a beverage with effectively improved aroma, an additive composition, and a method relating to these. A beverage according to one embodiment of the present invention contains 4-methyl-4-sulfanylpentane-2-one (4MSP) and 3-sulfanyl-4-methylpentane-1-ol (3S4MP), wherein the 3S4MP content is 200-4100 ppt, inclusive, and the proportion (4MSP/3S4MP value) of the 4MSP content relative to the 3S4MP content is 0.2-2.5%, inclusive.
