The "Hero" hitmaker said it is tough to follow the routine, reported E! online.
"It's really hard. My diet, you would hate it. All you eat is Norwegian salmon and capers every day. That's it," the 46-year-old pop star said.
Carey believes the secret to her tight enviable frame is sticking to proteins.
"I'm actually serious. I try to stick with the proteins. It's the worst.
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