Bitter Orange Extract
A popular ingredient in weight loss supplements, standardized for its synephrine content.
Also known as: Citrus aurantium
Overview
Bitter Orange Extract is derived from the fruit of the Citrus aurantium tree. It contains a compound called synephrine, which is a mild stimulant that can increase metabolism and suppress appetite. It is often used as a safer alternative to ephedra in fat-burning supplements.
Key Benefits
Supports Weight Loss
Bitter Orange Extract can help increase metabolic rate and promote the breakdown of fat.
Reduces Appetite
It may help curb cravings and reduce overall calorie intake.
Enhances Athletic Performance
Its stimulant properties can provide an energy boost for workouts.
Dosage & How to Take
Dosage of Bitter Orange Extract should be based on its synephrine content. It is advisable to start with a low dose.
| Purpose | Dose | Notes |
|---|---|---|
| Weight Management | 50-100 mg of extract (5-20 mg synephrine) daily | Split into 2-3 doses. |
| Energy Boost | 50 mg of extract (5-10 mg synephrine) | Take 30-60 minutes before activity. |
Best Time to Take
Take before meals to help with appetite, or before exercise for energy.
With or Without Food
Can be taken with or without food.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Standardized Extract | High | Consistent synephrine content | Look for extracts standardized to 6-10% synephrine. |
| Capsules | High | Convenience | Easy to dose and take. |
Side Effects & Safety
Common
- Increased heart rate, jitters, anxiety (especially when combined with caffeine)
Rare
- Headaches, dizziness, high blood pressure
Contraindications
- Individuals with heart conditions, high blood pressure, or anxiety disorders should avoid this supplement.
Interactions
Can cause a dangerous rise in blood pressure.
Can amplify the stimulant effects and increase the risk of cardiovascular side effects.
Scientific Research
A review of the human clinical studies involving Citrus aurantium (bitter orange) extract and its primary protoalkaloid p-synephrine
The review suggests that p-synephrine from bitter orange is unlikely to cause adverse cardiovascular events at typical doses.
The effects of Citrus aurantium extract on body composition and metabolic rate
Supplementation with Citrus aurantium extract led to a significant increase in resting metabolic rate.
Food Sources
Products With Bitter Orange Extract
1 product in our database contains this ingredient
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.