Useful and delicious: Catherine Zeta-Jones showed her lunch on the set

VIDEO: Catherine Zeta-Jones showed lunch that helps her stay slim
She showed the groceries she took for lunch.

Catherine Zeta-Jones has shown fans that she is true to her eating habits. She shared a video showing her lunch on set. The star took greens, tuna, and an apple out of her bag. She chose only natural products.

''Lunch on set. A creature of habit, this has been and will be it for the foreseeable future,'' she said.

It seems like her preferred meal while on set is a tuna salad of sorts.

Catherine looked natural and relaxed in the video. She wore a navy button-down shirt with white stripes, slicked back bun.

Read also: 'Completely different': Cameron Diaz talked about life after the end of her career in Hollywood

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