Having Down screening has nothing to do with diet, you can drink water.
Down screening refers to Down syndrome screening, is carried out between 15 to 20 weeks of pregnancy to screen the risk of chromosomal disorders in the fetus, mainly for low pregnancy risk people, and maternal age, gestational weeks, weight and other factors, and diet has nothing to do with, you can drink water, you need to follow the doctor’s advice to carry out screening.
When the negative results of the Tang screening suggest low risk, but also continue to be on time for delivery, positive results indicate that the risk of chromosomal disorders in the fetus increased, need to follow the doctor’s advice for prenatal counseling and prenatal diagnosis to clarify the development of the fetus to rule out chromosomal disorders can continue to be pregnant, but clear chromosomal disorders should be dealt with under the guidance of the doctor in a timely manner.