I am drinking my warm lemon water at this exact moment. It is 6:16am, and my day starts with warm lemon water since the second week of June 2014.
This practice is recommended in the I Quit Sugar Meal Plan by Sarah Wilson.
My grandma tells me to drink warm water to start the day since I was very young. However, I dislike drinking warm water. Warm water + lemon is perfect. Why? Because I love lemon tea and it is very similar!
I decided to give it a try, and now it is a simple thing that is already a new habit because I started feeling better after that.
Here are some benefits from this practice, according to Sarah (apple cider vinegar is an option to use instead of lemon).