When you down a glass of ice water, your body’s engine revs up slightly. Research suggests you could burn around 8 extra calories per glass just by heating the water. Compare that to a single potato chip (which has about 10 calories), and it’s basically a freebie. Is it life-changing? No. But it’s like finding a penny on the sidewalk—interesting and harmless.
Some studies even hint that cold water can boost your metabolism by up to 24% for an hour. However, that effect is small and temporary, like a quick caffeine buzz. So while you shouldn’t drop your gym membership, you can feel smart knowing you’re giving your body a tiny, frosty workout.
