Monk fruit extract is derived from the fruit of Siraitia grosvenorii, a perennial vine native to southern China and a member of the Cucurbitaceae family. Historically, the plant was known by the scientific names Momordica grosvenorii and Thaldiantha grosvenorii. Common names for the fruit include luo han guo, longevity fruit, Buddha’s fruit, and arhat fruit.
For centuries, monk fruit has been used in China—either whole or in dried powder form—for beverages and traditional medicines. It gained recognition as a potential intense sweetener in the mid-1970s, when water and ethanol extraction of the fruit's principal components resulted in an intensely sweet substance. Monk fruit extract has been permitted in various countries for years, including the US since 2007.
The Science of Sweetness: Mogrosides
The specific components of the extract that impart sweetness are collectively known as mogrosides (cucurbitane triterpene glycosides). Mogroside V is the primary component, exhibiting a sweetness level between 250 and 400 times that of sucrose (table sugar).
Unlike many other intense sweeteners, monk fruit extract is prized for its lack of a bitter aftertaste, especially when compared to sweeteners like saccharin or acesulfame K. Because it is highly heat-stable, it is an excellent sugar substitute for baking and cooking.
Mogroside vs. Glucose: How They Differ
The most significant distinction between mogroside and glucose lies in how the human body metabolizes them. While glucose is a simple sugar that is absorbed into the bloodstream and requires insulin to be processed for energy, mogrosides are not absorbed in the upper gastrointestinal tract. Instead, they pass through to the colon where they are broken down by gut microbiota.
As a result, mogrosides provide zero calories and do not cause the rapid "spike and crash" in blood glucose levels typically associated with sugar consumption. This makes monk fruit an ideal choice for those managing diabetes, following a keto lifestyle, or simply looking to reduce their caloric intake without sacrificing sweetness.