A composition includes Mogroside V and a Rebaudioside component in a weight ratio ≥1:1 and ≤6:1, wherein the Rebaudioside component consists of one or more compounds selected from the group consisting of Rebaudioside A, Rebaudioside B and Rebaudioside D. A method of purifying a Luo Han Guo extract includes contacting the Luo Han Guo extract with activated carbon and a macroporous polymeric adsorbent resin, an ion exchange resin, or both. A composition includes a Luo Han Guo extract, wherein Mogroside V constitutes from 50 wt% to 75 wt% of the Luo Han Guo extract and the composition includes from 0 to 13 wt% in total relative to the Mogroside V of aromatic glycosides, and from 0 to 15 ppm of semi-volatile organic compounds relative to the Mogroside V.