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Sample thermograms of body surface temperature changes following ingestion of ginger and placebo beverages. A healthy woman with cold sensitivity (Subject 4) drank a placebo or ginger (677 μg of gingerols, including 6-gingerol and 6-shogaol) beverage in the afternoon. Her body surface temperature was measured by thermography. Her palm temperature was higher at 20, 40, and 60 min after consumption of the ginger beverage compared with the placebo beverage.
