What it is
A sweetener built by hydrogenating a flavanone from bitter Seville oranges — citrus-derived, but semi-synthetic, used mostly to mask bitterness and stretch sweetness.
Why your biology objects
Non-caloric and non-glycemic with a clean safety file, but it's absorbed and made systemically available and, like every intense sweetener, it uncouples sweet taste from any nutrition behind it and keeps your sweetness expectation pinned far above what real food delivers.