Eating beef and shrimp usually has no effect on the results of noninvasive blood collection, but it is generally advisable to eat a light diet the night before the blood collection. Non-invasive blood collection refers to non-invasive DNA testing, which is a type of prenatal screening test for pregnant women. Under normal circumstances, eating beef and shrimp has little effect on the results of non-invasive blood collection, but it is also recommended not to eat a lot of food, and it is generally recommended to eat a light diet the night before the blood collection. Non-invasive blood collection is mainly through the extraction of fetal DNA to determine whether the fetus suffers from congenital and hereditary diseases, applicable to chromosomal abnormalities, fetal developmental abnormalities, not suitable for invasive blood collection of pregnant women. Diet generally has no effect on non-invasive blood collection, but do not overdo it to avoid causing gastroenteritis, indigestion and other problems, which will then indirectly affect the test results. Pregnant women who have abnormal test results through non-invasive blood collection to detect fetal development are advised to communicate and consult with their doctors in a timely manner, and standardized treatments should be carried out under the guidance of doctors in case of abnormalities.