* Anxiety : Breathing in the scent of orange essential oil may help alleviate anxiety, according to a small study published in Physiology & Behavior in 2000. For the study, 72 people (ages 22 to 57) were placed in one of two waiting rooms prior to undergoing a dental treatment: in the first waiting room, an electrical dispenser was used to diffuse the aroma of orange essential oil; in the second room, there was no ambient odor. Study results showed that participants exposed to the aroma of orange essential oil (especially females) had lower levels of anxiety and a more positive mood than those in the control group.In a more recent study (published in Progress in Neuro-Psychopharmacology & Biological Psychiatry in 2010), scientists found that exposure to the aroma of orange essential oil significantly reduced anxiety in rats during a maze-based experiment.
*Food Poisoning : A number of laboratory studies suggest that orange essential oil may possess antibacterial properties that could be useful in destroying bacteria known to cause food poisoning. For instance, a test-tube study published in the Journal of Food Science in 2008 determined that orange essential oil helped inhibit the effects of Salmonella. Since there is currently a lack of clinical trials testing the use of orange essential oil against foodborne pathogens, it's too soon to recommend orange essential oil for prevention or treatment of food poisoning. It's also important to note that orange essential oil should not be taken internally without the supervision of a health professional.
* Cancer : [[D-limonene]] is a super-nutrient that occurs in Orange Essential Oil. It has been studied extensively for its ability to prevent cellular mutations and combat cancer tumor growth.
* acne
*colds and flu
* Digestion : It is known to promote digestion, ease constipation and increase the absorption of vitamin C. Use as a massage oil in the abdominal area.
*constipation
*depression