Not in my opinion: When they take a swab of your check they are picking up cells to culture for the dna test. They are now also using blood draw for the dna test to get a complete dna makeup to let you know what you may be at risk for or if your dna precludes use of certain drug therapies. Either way i would not worry as I am sure they can tell your dna from your meals.
Answered 10/5/2012
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