Oprah's health concerns help her focus on weight loss

Oprah Winfrey has spoken about what motivates her to keep control of her weight.

The TV mogul, whose yo-yo weight is as famous as her business acumen and media prowess, explained to the NY Times Magazine that it's all about maintaining her health.

'For your heart to pump, pump, pump, pump, it needs the least amount of weight possible to do that,' the 63-year-old said. 'I can’t accept myself if I’m over 200 pounds, because it’s too much work on my heart.'

Watching her weight: Oprah Winfrey, pictured in April, tells NY Times Magazine she focuses on weight loss due to concerns over heart health and diabetes rather than a desire to be skinny

Watching her weight: Oprah Winfrey, pictured in April, tells NY Times Magazine she focuses on weight loss due to concerns over heart health and diabetes rather than a desire to be skinny

Oprah says she no longer 'diets'; rather, she focuses on 'mindful eating.'

And the reason she cannot accept herself when she is too heavy is because she can't allow herself to put her health in jeopardy.

Being overweight 'causes high blood pressure for me. It puts me at risk for diabetes, because I have diabetes in my family,' The Color Purple Oscar nominee said.

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