Celebrity trainer Eric Fleishman died at the age of 53.

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Fleishman, also known as "Eric The Trainer," died at his home.

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The cause of celebrity trainer death is not known.

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A post on his official Instagram confirmed his death with a carousel of his pics.

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Fleishman's memorial services are pending, his family said in the post.

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During his career Fleishman trained U.S. soldiers and police officers.

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He had also hosted the Mr. America Bodybuilding event.

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He also served as the host for the Celebrity Sweat series.

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Many celebs shared their condolences in the comment section.

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Patrick Schwarzenegger wrote, "So sad. Rip Eric. Will miss you ?❤️."

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