So I am taking 65mg (1 grain) of Nature-Throid each morning. I am due to have a blood test to check my thyroid function, and was wondering what is the best time of day to have this. If I have the test early in the morning, before taking my NT, it will have been 24 hours since my last dose. Is that too long? I know you should leave 24 hours with Levo, but don't know if the same rule applies with NDT. I am using a private test, Medichecks, so I want to get it right!