5. A bottle of cold water
When you exercise you sweat a lot. Remember to take a bottle of water each time you head to the gym. Opt for icy-cold water if you wish to boost your metabolism. When your drink a glass of cold water, your body needs around 5% more energy to make the fluid warm. Cool beverages are pleasant to drink, especially during a workout session. Refresh and hydrate yourself with a glass of cold beverage.