Condition
Morning Sickness
Morning sickness is the nausea, sometimes with vomiting, that many people feel in early pregnancy, tied to rising hormones like hCG and estrogen that affect the digestive system. Ginger has the best evidence among supplements, and across nine studies with 216 participants, nausea symptoms improved. Those studies were only moderate in size, so the picture is encouraging but rests on a fairly small group of people.
Sources: PMID 11275030
- Supplements studied
- 2
- Graded outcomes
- 3
- Trials
- 4
- People studied
- 281
Evidence by supplement
- Strong
- Moderate
- Limited
- Very limited
| Grade | Outcome | Effect | Size | Studies | People | Studies list |
|---|---|---|---|---|---|---|
| Nausea Symptoms Moderate Improvement | Improves (the measure goes down) | Moderate effect | 9 studies | 216 people | ||
| Pregnancy Nausea (NVP) Meta-analysis (12 RCTs, n=1278): Ginger significantly improved nausea vs placebo (MD 1.20, 95% CI 0.56-1.84, p=0.0002, I²=0%). Subgroup analysis favored <1500mg/day. Another meta-analysis (13 studies, n=1174): OR 7.475 for general NVP symptom improvement. More effective than vitamin B6. | Improves (the measure goes up) | Moderate effect | ||||
| Hyperemesis Gravidarum Meta-analysis (10 RCTs): Pooled OR 0.41 (95% CI 0.22-0.79, p=0.008) indicating significant reduction in nausea and vomiting symptoms. Compared to placebo, vitamin B6, and metoclopramide. Various forms tested including capsules, powders, and biscuits. | Improves (the measure goes down) | Moderate effect | ||||
| Grade | Outcome | Effect | Size | Studies | People | Studies list |
|---|---|---|---|---|---|---|
| Irritable Bowel Syndrome Symptoms | Improves (the measure goes down) | 7 studies | 65 people | |||
Studies that measured irritable bowel syndrome symptoms | ||||||
Key findings
- Nausea SymptomsImproves (the measure goes down)
- Pregnancy Nausea (NVP)Improves (the measure goes up)
- Hyperemesis GravidarumImproves (the measure goes down)
The Morning Sickness (Pregnancy Nausea) protocol
2 primary supplements · 1 supporting supplement
- Ginger250 mg four times daily (1 g total)
- Vitamin B6 (Pyridoxine)10–25 mg three times daily
Studies cited
57 studies from PubMed
- Ginger for treating nausea and vomiting: an overview of systematic reviews and meta-analyses
- Effect of ginger in the treatment of nausea and vomiting compared with vitamin B6 and placebo during pregnancy: a meta-analysis
- Effects of Ginger Intake on Chemotherapy-Induced Nausea and Vomiting: A Systematic Review of Randomized Clinical Trials
- Efficacy of Ginger (Zingiber officinale) in Ameliorating Chemotherapy-Induced Nausea and Vomiting and Chemotherapy-Related Outcomes: A Systematic Review Update and Meta-Analysis
- Does the Oral Administration of Ginger Reduce Chemotherapy-Induced Nausea and Vomiting?: A Meta-analysis of 10 Randomized Controlled Trials
- The effectiveness and safety of ginger for pregnancy-induced nausea and vomiting: a systematic review
- A systematic review and meta-analysis of the effect and safety of ginger in the treatment of pregnancy-associated nausea and vomiting
- Effects of ginger for nausea and vomiting in early pregnancy: a meta-analysis
- Ginger (Zingiber officinale) and chemotherapy-induced nausea and vomiting: a systematic literature review
- Efficacy of ginger for nausea and vomiting: a systematic review of randomized clinical trials
- Effects of ginger on motion sickness susceptibility and gastric function
- Acute effects of dietary ginger on quadriceps muscle pain during moderate-intensity cycling exercise
- Ginger (Zingiber officinale) reduces muscle pain caused by eccentric exercise
- Ginger consumption enhances the thermic effect of food and promotes feelings of satiety without affecting metabolic and hormonal parameters in overweight men: a pilot study
- Effect of ginger on lower esophageal sphincter pressure
- Effects of ginger on gastric emptying and motility in healthy humans
- Ginger syrup as an antiemetic in early pregnancy
- Ginger for nausea and vomiting in pregnancy: randomized, double-masked, placebo-controlled trial
- Effect of a ginger extract on pregnancy-induced nausea: a randomised controlled trial
- Effectiveness of ginger for prevention of nausea and vomiting after gynecological laparoscopy
- The efficacy of ginger in prevention of postoperative nausea and vomiting after major gynecologic surgery
- The efficacy of ginger for the prevention of postoperative nausea and vomiting: a meta-analysis
- Vertigo-reducing effect of ginger root. A controlled clinical study
- A randomized controlled trial of ginger to treat nausea and vomiting in pregnancy
- Ginger treatment of hyperemesis gravidarum
- Comparing analgesic effects of a topical herbal mixed medicine with salicylate in patients with knee osteoarthritis
- A randomized, placebo-controlled, cross-over study of ginger extracts and ibuprofen in osteoarthritis
- Effectiveness and safety of steamed ginger extract on mild osteoarthritis: a randomized, double-blind, placebo-controlled clinical trial.
- Anti-emetic effect of ginger powder versus placebo as an add-on therapy in children and young adults receiving high emetogenic chemotherapy
- Effect of ginger on gastric motility and symptoms of functional dyspepsia
- Zingiber officinale Improves Cognitive Function of the Middle-Aged Healthy Women
- Phase II study of the effects of ginger root extract on eicosanoids in colon mucosa in people at normal risk for colorectal cancer
- Investigation of the effect of ginger on the lipid levels. A double blind controlled clinical trial
- Ginger extract reduces delayed gastric emptying and nosocomial pneumonia in adult respiratory distress syndrome patients hospitalized in an intensive care unit
- Effect of treatment with ginger on the severity of premenstrual syndrome symptoms
- Comparison of effects of ginger, mefenamic acid, and ibuprofen on pain in women with primary dysmenorrhea
- The effect of oral supplementation of ginger on glycemic control of patients with type 2 diabetes mellitus - A systematic review and meta-analysis.
- Beneficial Effects of Ginger Extract on Eye Fatigue and Shoulder Stiffness: A Randomized, Double-Blind, and Placebo-Controlled Parallel Study.
- Modulation of cognitive performance and mood by aromas of peppermint and ylang-ylang
- Examination of the effectiveness of peppermint aromatherapy on nausea in women post C-section
- Peppermint oil: a treatment for postoperative nausea
- An investigation into the use of aromatherapy in intrapartum midwifery practice
- A randomized trial of peppermint gel, lanolin ointment, and placebo gel to prevent nipple crack in primiparous breastfeeding women
- Aromatherapy with peppermint, isopropyl alcohol, or placebo is equally effective in relieving postoperative nausea
- Early effects of peppermint oil on gastric emptying: a crossover study using a continuous real-time 13C breath test (BreathID system)
- The effect of enteric-coated, delayed-release peppermint oil on irritable bowel syndrome
- Enteric-coated, pH-dependent peppermint oil capsules for the treatment of irritable bowel syndrome in children
- Treating irritable bowel syndrome with peppermint oil
- Enteric-coated peppermint-oil capsules in the treatment of irritable bowel syndrome: a prospective, randomized trial
- Treatment of irritable bowel syndrome with peppermint oil. A double-blind study with a placebo
- Peppermint oil (Mintoil) in the treatment of irritable bowel syndrome: a prospective double blind placebo-controlled randomized trial
- Effectiveness of Oleum menthae piperitae and paracetamol in therapy of headache of the tension type
- Effect of peppermint and eucalyptus oil preparations on neurophysiological and experimental algesimetric headache parameters
- Peppermint oil improves the manometric findings in diffuse esophageal spasm
- Premedication with peppermint oil capsules in colonoscopy: a double blind placebo-controlled randomized trial study
- Efficacy of Peppermint oil in diarrhea predominant IBS - a double blind randomized placebo - controlled study
- Effect of peppermint water on prevention of nipple cracks in lactating primiparous women: a randomized controlled trial