Is drinking soy milk effective for quickly increasing amniotic fluid?
Generally speaking, drinking soy milk can to some extent assist in supplementing amniotic fluid, but it cannot quickly or directly increase the volume of amniotic fluid. The detailed analysis is as follows:

Drinking soy milk may help support amniotic fluid replenishment because soy milk contains a large amount of water. Consuming it increases the body's fluid intake, providing basic raw materials for amniotic fluid production. Meanwhile, nutritional components in soy milk such as plant-based proteins support normal maternal metabolism, indirectly helping maintain a stable amniotic fluid level. However, amniotic fluid production is regulated by multiple factors including fetal urination, placental function, and maternal circulation. The water from soy milk must undergo complex metabolic processes in the body before possibly contributing to amniotic fluid formation. Moreover, single or short-term consumption cannot rapidly alter the overall volume of amniotic fluid; therefore, it does not lead to an immediate or direct increase.
If low amniotic fluid levels are detected, the underlying cause should first be evaluated and diagnosed by a doctor. Relying solely on drinking soy milk for improvement is not recommended. Soy milk should be consumed in moderation to avoid discomfort such as bloating due to excessive intake. Opt for plain, unsweetened soy milk to minimize additional sugar consumption. Individuals with kidney disease or soy allergies should avoid soy milk and consult their doctor for alternative hydration methods.