Does a man have a right to control what his wife eats if he pays her health insurance?

For example, if she is a stay at home mom and he works full time and pays extra money to have her put on his insurance. I say this because eating right is an important part of being healthy and to be honest I don't want my future wife to be overweight.
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As long as she can control when you take a cr*p since she cleans your toilets.
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