The smugness of people who drink copious amounts of water every day might be somewhat unfounded – or their scorn for people who only drink tea and coffee might be, at least.
Many health fanatics and fitness influencers advocate drinking several litres of water every day. Some also argue that caffeinated drinks like tea and coffee won’t hydrate you in the same way that the pure stuff will, and will even dehydrate you.
But is this just a myth?
Business Insider spoke to Ali Webster, PhD, RD, and associate director of nutrition communications at the International Food Information Council Foundation (IFIC), to find out what happens to your body if you drink only tea and coffee all day – and no water.