Try not to eat hot pot the day before a fasting blood draw. If you eat hot pot the day before a fasting blood test, it may lead to abnormalities in liver function, lipids, blood sugar and other test indicators the next day, so it is best not to eat greasy or spicy food three days before a fasting blood test to avoid affecting these test indicators. Fasting blood tests generally require fasting and water fasting for at least eight hours before the blood is drawn, and it is best to quit smoking and drinking a week before the test, otherwise it may lead to abnormalities in liver function and other blood tests. For other tests such as blood tests on an empty stomach, the food eaten the day before the blood draw usually does not have much effect on the results.