Actress Katrina Kaif says the first thing she think of when she is thirsty is plain water.

The 28-year-old promotes mango drink Slice, but when asked what she turns to when she is thirsty, she told: "The first thing is water!"

"But when you're looking for something that gives you energy, have something and craving for something different that's where Slice comes into the picture. It's a little more than just something to drink," she added.

Considering that the actress is so fit, how come she promotes a drink, which could be sugar-loaded in nature.

"That was always a concern for me, that is why I did look into it before I signed the brand. But I think the good thing is that they are doing a good job in keeping that part in check," said Katrina.