Can You Drink Black Coffee Before A Blood Test For Thyroid

Most laboratory protocols request a fast of between 8 and 12 hours for basic or comprehensive metabolic panel 1.

Can you drink black coffee before a blood test for thyroid. Fasting and Thyroid Test Results. As I only drink very weak black tea anyway that is what I have always done. Its OK to drink a cup of plain black coffee before a cholesterol test.

You should fast 14 hours before the test and drink a lot of water. Generally it is better to be fasting for lab tests. Studies have shown that time of day and fasting can affect your results.

There are also studies that say that black coffee before a blood test can lead to clinically insignificant changes. The hours you spend sleeping are considered part of the fasting period as long as you dont break your fast with coffee or food once youre awake. The indirect but important point is that coffee contributes to estrogen dominance cited above and estrogen dominance inhibits T4 to T3 conversion.

Recommended not to drink alcohol the night before though. Schedule your test as early in the day as possible. This is why thyroid patients need to take their hormone replacement pill at least an hour before drinking coffee.

You cannot drink black decaf coffee before a blood test. If thyroid blood test is the only test you are having coffee is not likely to materially affect the results. Yes black coffee or black tea are ok.

Definitely no thyroid drugs before the test. According to William Kormos MD the Editor in Chief of Harvard Mens Health Watch its okay to drink water plain coffee or black tea. Adhere to the water-only rule after a regular dinner and plan to postpone your morning coffee until after you provide a blood sample.