Citrus aurantium

Commonly referred to as “Bitter Orange,” but may also be known as “Seville Orange” or ”Zhi shi.”  Citrus aurantium has been used in traditional medicine as a decongestant and treatment for nausea/indigestion.  Bitter orange contains a range of phyisiologically active biogenic amines: tyramine, methyltyramine, octopamine and synephrine.

Standardized extracts of Citrus aurantium are commonly used in “ephedra-free” fat loss supplements.

See Paul’s review, “Synephrine, Citrus Aurantium, Advantra Z™: Potent Fat Burner, Or Total Dud?” for more information.