The rhizomes of the tropical ginger plant are dried and ground to prepare this popular powder. This spice provides a warming flavor to baked goods and a subtle spice to savory and sweet dishes. Medicinally, ginger has been used for centuries to promote digestion and aid with nausea and upset stomach. The anti-inflammatory properties can help alleviate cold and flu symptoms. It may be encapsulated as a dietary supplement for the proper use.