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6. Use Cinnamon as Your Cold-Brew-Coffee Sweetener

It has precisely zero calories and is packed with more antioxidants and flavor than anything else you could sweeten your drink with, says Gans. Use it instead of your local coffee shop's simple syrup (often added to iced coffee too) or agave nectar (which has 65 calories per tablespoon) and you could easily save 100 calories or more. Double or triple that per day if you're a true java junky.