What Can Pregnant Women Eat to Relieve Frequent Nausea and Vomiting?

　　Frequent vomiting during pregnancy—commonly referred to as “persistent morning sickness”—typically denotes recurrent or severe nausea and vomiting experienced by pregnant women. In most cases, this symptom may stem from hormonal fluctuations during pregnancy, uterine compression of the stomach, gastroesophageal reflux disease (GERD) in pregnancy, chronic gastritis associated with pregnancy, or gestational hyperthyroidism. Affected individuals may alleviate symptoms by consuming bland, easily digestible foods such as millet porridge or apples. Under medical guidance, medications—including lactobacillus tablets and quadruple-strain bifidobacterium tablets—may also be used. In rare, severe cases, surgical intervention may be necessary. A detailed analysis follows:

　　1. Hormonal Fluctuations During Pregnancy

　　In early pregnancy, human chorionic gonadotropin (hCG) levels rise sharply, suppressing gastrointestinal motility and impairing digestive function—leading to recurrent nausea and vomiting. It is advisable to adopt a regimen of small, frequent meals and consume bland, easily digestible foods such as millet porridge and apples, while avoiding greasy or strongly flavored foods.

　　2. Uterine Compression of the Stomach

　　During mid- to late pregnancy, progressive uterine enlargement exerts upward pressure on the stomach, reducing gastric capacity and delaying gastric emptying—thereby triggering vomiting. To mitigate this, limit portion sizes per meal, take gentle walks after eating, and avoid prolonged sitting or lying flat immediately after meals.

　　3. Gestational Gastroesophageal Reflux Disease (GERD)

　　Increased secretion of relaxin—a hormone that promotes tissue relaxation during pregnancy—reduces lower esophageal sphincter (LES) tone, allowing gastric contents to reflux into the esophagus and irritate its mucosa, resulting in vomiting. Under physician supervision, medications such as hydrotalcite chewable tablets, vitamin B6 tablets, and compound digestive enzyme capsules may be prescribed.

　　4. Gestational Chronic Gastritis

　　Pre-existing chronic inflammatory damage to the gastric mucosa may worsen during pregnancy due to decreased immune function and diminished gastrointestinal motility, thereby exacerbating nausea and vomiting. Under medical guidance, treatment options may include lactobacillus tablets, quadruple-strain bifidobacterium tablets, and Hericium erinaceus extract granules.

　　5. Gestational Hyperthyroidism

　　Excessive thyroid hormone secretion accelerates systemic metabolism and directly stimulates the gastrointestinal mucosa, causing intractable vomiting. Treatment under strict medical supervision may involve antithyroid medications such as propylthiouracil tablets or methimazole tablets, and beta-blockers such as metoprolol tartrate tablets. In severe, refractory cases, subtotal thyroidectomy may be indicated.

　　Throughout pregnancy, maintaining a regular, balanced, and light diet—and cultivating healthy eating habits—is essential. Mild nausea and vomiting often resolve spontaneously with lifestyle adjustments. However, if vomiting becomes frequent or is accompanied by systemic discomfort (e.g., dehydration, weight loss, or fatigue), prompt medical evaluation is crucial to identify the underlying cause and initiate targeted management—ensuring optimal health for both mother and fetus.