I’ve always thought that citrus fruits are good for fighting colds because of their vitamin C content which supposedly helps boost the immune system and helps fight bugs. What I just read is that they also contain a compound called synephrine, that can help you cope with stuffy nose due to allergies and colds.

The USDA tested mandarins from 10 different micro-climates in Placer County and what they found inside these little fruits, compared to other citrus, 6 to 7 times the amount of synephrine, a naturally occurring decongestant.
Photo Credit: sonictk via Flickr