Vomiting is the forceful, involuntary expulsion of gastric contents through the mouth — coordinated by the vomiting centre in the brainstem in response to signals from the gastrointestinal tract, vestibular system, chemoreceptor trigger zone, and cerebral cortex. It is a protective reflex (expelling ingested toxins) but also occurs as a symptom of many conditions without a toxin to expel. Common causes include gastroenteritis (viral or bacterial), food poisoning, motion sickness, pregnancy (particularly the first trimester), migraine, medication side effects (particularly opioids, cytotoxics, antibiotics), raised intracranial pressure, acute appendicitis, and bowel obstruction.

What lifestyle changes can help with vomiting?

Stay hydrated with small, frequent sips. Clear fluids or oral rehydration solution. Ginger has strong evidence for nausea and vomiting. Avoid solid food until vomiting resolves.

What integrative approaches support vomiting?

Antiemetics have strong evidence for vomiting control. Ondansetron has very strong evidence for chemotherapy-related vomiting. Metoclopramide has strong evidence for gastroparesis. Ginger has moderate evidence for pregnancy nausea.

When should I seek professional support for vomiting?

Emergency care for blood in vomit, severe abdominal pain with vomiting, signs of dehydration, or vomiting following head injury. doctor for prolonged vomiting beyond 48 hours.

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Vomiting

Forceful expulsion of stomach contents through the mouth — a protective reflex with many possible underlying causes.

Understand what may be causing this

Reviewed by Internal Medical Editorial Team · Integrative Health Content Review26 March 2026Strong Evidence

Quick answer

Forceful expulsion of stomach contents through the mouth — a protective reflex with many possible underlying causes.

Recognition

Do any of these feel familiar?

The forceful, unpleasant expulsion of stomach contents — preceded by nausea, often with sweating, pallor, and salivation. Most episodes resolve within 24–48 hours in gastroenteritis.

What is Vomiting?

Forceful expulsion of stomach contents through the mouth — a protective reflex with many possible underlying causes.

Not sure what this means for you?

Ask Vidi to help you understand Vomiting and find what may be most relevant for your situation.

Self-care

What You Can Do Now

Self-directed strategies that may support Vomiting alongside professional care.

Stay hydrated with small, frequent sips

Ready to find support for Vomiting?

Connect with holistic and complementary practitioners who specialise in this area.

Find support tailored to your experience

Vomiting

Do any of these feel familiar?

What You Can Do Now

Ready to find support for Vomiting?

This symptom is often connected to

Nausea and vomiting in pregnancy

Ask Vidi about Vomiting

About Vomiting

Integrative Approaches & Evidence

When to Seek Support

Frequently Asked Questions

References