Lemon Water for Weight Loss -The Extreme Weight Loss Drink! One of the most popular questions I see on any health blog is, what can I drink to lose weight fast? Well, the answer I have finally come up with is lemon water! Lemon water is simply a beverage made from mixing fresh lemon juice with water. You can enjoy it by drinking it hot or cold depending on your preference. You can add some other ingredients like honey, ginger, mint,cucumber etc to increase flavor.