What should not be eaten before having blood drawn

Sep 07, 2023 Source: Cainiu Health
Dr. Yang Shuwen
Introduction
In general, foods such as seaweed, chicken soup, pork liver, apples, and rice should not be consumed before blood collection. Seaweed provides nutrients including protein, carbohydrates, and iodine, which may affect the results of thyroid function tests if consumed prior to blood draw. Therefore, it is recommended to avoid consuming the aforementioned foods before having blood drawn.

Generally, foods such as seaweed, chicken soup, pork liver, apples, and rice should not be consumed before blood collection. Specific details are as follows:

1. Seaweed

Seaweed provides nutrients including protein, carbohydrates, and iodine. Consuming it before blood draw may affect the results of thyroid function tests.

2. Chicken Soup

Chicken soup is high in fat, calories, and protein, which may interfere with the accuracy of lipid and glucose level measurements.

3. Pork Liver

Pork liver contains high levels of purines and cholesterol; its consumption may affect laboratory test results.

4. Apples

Eating apples before blood collection may have some impact on blood biochemical tests.

5. Rice

Patients undergoing tests for blood glucose, lipids, liver function, or kidney function should generally avoid eating rice.

In summary, the above-mentioned foods should be avoided before blood collection. If any discomfort occurs after blood draw, medical advice should be sought promptly.