Is a DNA perteranity test effected by using meth and eating an hour before doing a swab test?

A DNA paternity test is generally not affected by recent meth use or eating before a swab test. The test analyzes genetic material found in the cheek cells collected during the swab, which remains unchanged by recent food intake or drug use. However, it's important to follow testing guidelines for accuracy. If you have specific concerns, it's best to consult the testing facility for advice.