First lady Michelle Obama, who has urged Americans to exercise more and eat healthier, has a new project: encouraging the public to drink more water.

The first lady will travel to the appropriately named Watertown, Wis., for an event Thursday to promote her effort.

“Her core message is going to be that drinking more water is the best and easiest choice that we can make every day,” said Sam Kass, executive director of Let’s Move, the first lady’s health advocacy group. “Water is our original energy drink.”

Officials outlined the water push to reporters in a background briefing Wednesday.

The first lady’s office touted CDC statistics showing that 40 percent of Americans drink less than half of the daily recommended water intake and a quarter of those under 19 don’t drink any water on a given day.

Obama, who planted a vegetable garden on the South Lawn of the White House, has been criticized by some conservatives for her anti-obesity campaign. They say she is pushing a “nanny state” approach.

Aware of those concerns, Healthier America President and CEO Lawrence Soler said the initiative would not “focus on what people shouldn’t drink.”

The group is unveiling a web site to promote their efforts, And they are also partnering with celebrities and morning and late-night talk shows to trumpet more water consumption.

When asked how much water the first lady consumes daily, Kass said, “She is a water drinker from morning to night.”

He said he did not know how many glasses she drinks each day, however.