Supplement or Country?

This morning, between preparing the different egg, toast, and cereal orders at breakfast. I asked the girls if they'd already had their vitamins or not. Being a bit of a prat, I pronounced vitamin as the British English /ˈvɪt ə mɪn/ instead of the American English /ˈvaɪt ə mɪn/. Naturally, this offended Celeste gravely. After correcting my pronunciation, she stated, "besides /ˈvɪt ə mɪn/ is a country." We all paused for a moment trying to figure out what she meant ... then it clicked: Việt Nam. Which now has me thinking about bánh mì...