This popular spice is renowned for its ability to help balance digestion. The essential oils in ginger are aromatic and spicy; the combined active ingredients have been shown in clinical trials to settle nausea and stomach upset caused by travelling, pregnancy or dizziness. It is a warming herb that actually increases the production of digestive enzymes and absorption of nutrients. It is also a peripheral circulatory stimulant and warms the extremities of the body. Human clinical trials have shown that dry ginger can relieve the pain and swelling associated with joint inflammation and muscular aches.