HealthNotes

Bitter orange oil may possibly cause light sensitivity (photosensitivity), especially in fair-skinned individuals.¹³ Generally this occurs only if the oil is applied directly to the skin and then exposed to bright light; in rare cases it has also been known to occur in people who have taken bitter orange internally. The oil should not be applied topically and anyone who uses it internally should avoid bright light, including tanning booths.

Internal use of the volatile oil of bitter orange is also potentially unsafe and should not be undertaken without expert guidance. Large amounts of orange peel have caused intestinal colic, convulsions, and death in children.¹⁴ The amounts recommended above for internal use should not be exceeded.

One text on Chinese medicine cautions against the use of bitter orange in pregnancy.¹⁵ This concern is not raised in any other reference, and the American Herbal Products Association classifies the herb as "class 1," an herb that can be safely consumed during pregnancy when used appropriately.¹⁶