Is drinking cold water harmful?
Drinking cold water will burn more calories as the body has to warm itself to room temperature when intaking the water into the system. Is that right?
 Our bodies do not expend calories when absorbing cold water. In order for water to hydrate the body, it need not be at room temperature or even at the same temperature as our bodies'. As a matter of fact, the American College of Sports Medicine's Position Stand on Exercise and Fluid Replacement states that fluid needs to be cooler than ambient temperature, meaning between 15 – 22°C. Colder fluids leave the stomach more quickly than warmer ones, allowing faster rehydration. During hot weather, when we tend to lose extra fluids, beverages in this temperature range will have a cooling effect on the body. Drinking cool beverages can help to cool us from the inside. Also, there's no need to worry: cold foods and beverages do not harm any of our internal organs, so we can feel free to enjoy them.
Reference
http://www.goaskalice.columbia.edu/2439.html
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