Ivanka Trump relies on her metabolism to keep her thin

The American businesswoman is renowned for her toned figure, but insists she doesn`t work out religiously or watch what she eats. Ivanka often worries her love of naughty treats will catch up with her, but won`t change her diet until she feels she has to.

"Discipline in what I eat is my biggest diet challenge. I know I don`t eat enough salads and things like that," she admitted. "My friends would say I don`t hold back. I constantly rely on the fact that I`m 28 years old, and I just hope that my metabolism stays with me for a few more years, at which point I`ll have to start limiting these things a little bit."

Ivanka revealed one of the worst aspects of her diet is her water intake. She rarely drinks the beverage, even though she knows it is essential for making skin and hair look healthy.

The star balances out her liquid intake by rarely drinking alcohol, although if she fancies a glass she doesn`t deprive herself.

"I drink almost no water, which is very bad for me," she told the American edition of OK! magazine. "It`s not particularly good. When I do drink water, I drink sparkling water, which I`m not sure is quite as healthy. I drink a lot of tomato juice. My diet is very sodium-heavy, which I`ve been told, but I enjoy tomato juice and pretty much that`s it."

sections: Celebrities