Ginger
A pungent, warming spice from the rhizome of Zingiber officinale, used in tiny amounts to add flavor and aroma; may appear as powder, bits, or extract.
Should I eat Ginger?
In packaged foods, ginger mostly adds flavor with minimal calories. Clinically meaningful effects like nausea relief require gram-level doses, well above what’s in most foods.
Summary
Ginger is a dried or fresh rhizome used in very small amounts to deliver warm, spicy flavor. Evidence from human trials supports nausea reduction at about 1 g/day of dried ginger; other digestive benefits are less consistent. Safety at typical dietary exposures is good, with mild GI symptoms mainly seen at supplement-level doses. Practical risks are contamination in poorly controlled spices and the irritancy of concentrated oils/oleoresins during handling. People with reflux or those considering high-dose supplements (including during pregnancy or while on anticoagulants) should consult a clinician.
Key Research Benefits
May ease nausea at studied doses
About 1 g/day of dried ginger has reduced nausea and vomiting in early pregnancy and some other settings in clinical trials.
Possible help for upset stomach
Reviews suggest ginger may modestly improve functional dyspepsia (indigestion) for some people, though findings are mixed and dose-dependent.
Strong flavor without sugar or salt
Typical snack use is only tens–hundreds of parts per million, so ginger adds taste with virtually no calories, sugar, or sodium.
Key Research Risks
GI symptoms at high intakes
Supplement-level doses can trigger mild heartburn, bloating, or diarrhea; food-level intakes are much lower and usually well tolerated.
Contamination in poorly controlled spices
Dried ginger, like other spices, can be a vehicle for Salmonella without validated pathogen controls.
Irritancy from concentrated extracts
Ginger essential oil and oleoresin are potent and can irritate on contact; this is mostly a handling risk rather than a typical eating risk.
Overview
What is it?
Why is it used?
Origin
Ginger likely originated in Southeast Asia and was traded along ancient maritime routes into India, China, and the Middle East. Classical texts describe its use more than 2,000 years ago. The edible part is the rhizome, harvested, cleaned, and either used fresh or dried and ground. Modern production is centered in India, China, Nigeria, and Indonesia, with global trade in dried slices, powders, oils, and oleoresins.
Process: Harvest, clean, dry; grind or extract
Steps
Chemicals
Research & Safety
Potential Concerns
The main consumer risk with dried spice is microbiological contamination if supplier controls are weak; choose reputable brands and products that follow validated kill steps. At high supplemental doses, some people experience mild heartburn, bloating, or diarrhea; food-level amounts are much lower and usually well tolerated. Concentrated oils and oleoresins (made with ethanol, water, or supercritical CO2) are far more potent than the dried spice and can be irritating on contact, though this is mainly a handling issue. There is no established ADI for ginger as a spice, and major assessments have not flagged genotoxic or carcinogenic concerns at typical exposures.
Potential Benefits
Ginger adds a lot of flavor with almost no calories, sugar, or sodium. About 1 g/day of dried ginger has been shown to reduce nausea for some people, but most packaged foods contain far less (often only milligrams), so they are not intended to deliver that effect. Reviews suggest possible relief of indigestion for some users, though findings are mixed and depend on dose. On labels, ginger may appear as “ginger,” grouped under “spice(s),” or as part of “natural flavor,” which makes the actual amount hard to gauge.
Digestive Effects
Human trials around 1 g/day of dried ginger are generally well tolerated, with mild GI symptoms (heartburn, bloating, diarrhea) in a subset of users. People with reflux may notice heartburn sooner, especially with larger amounts or concentrated forms. Trace food-use levels (tens–hundreds of ppm) are much lower than studied supplement doses and rarely cause issues. If you experience discomfort, reduce intake or avoid supplement-level dosing.
Limit Consumption
Pregnancy: Trials around 1 g/day of dried ginger have shown benefit for nausea without identified risks at that dose and duration; discuss any supplement use with your clinician. People on anticoagulants or with bleeding disorders should consult a clinician before using high-dose supplements, as caution is prudent even though evidence of increased bleeding risk is limited and inconsistent. Infants and young children are more vulnerable to foodborne illness, so rely on brands with strong pathogen controls for spice-containing foods. Individuals with reflux may be more sensitive to heartburn from larger amounts.
Fact Sheet
Regulatory Status
ESG & Sustainability
Allergens and Diet
Natural Alternatives
Fresh ginger
Turmeric
Galangal
Citations
21 CFR 101.22 — Foods; labeling of spices, flavorings, colorings and chemical preservatives
2024-01-01U.S. FDA • eCFR (U.S. FDA)
GRAS Flavoring Substances 30
2021-10-01FEMA Expert Panel • FEMA
Safety and efficacy of essential oil, oleoresin and tincture from Zingiber officinale as sensory additives in feed for all animal species
2020-06-05EFSA FEEDAP Panel • EFSA Journal
CXS 343-2021: Dried or Dehydrated Ginger
2021-12-01Codex Committee on Spices and Culinary Herbs • Codex Alimentarius
Ginger on Human Health: A Comprehensive Systematic Review of 109 Randomized Controlled Trials
2020-02-01N.H. Anh, T. Chu et al. • Nutrients (Systematic Review, open access on PMC)
Ginger for nausea and vomiting of pregnancy
2016-02-01A.J. Lindblad, G. Koppula • Canadian Family Physician (open access on PMC)
Ginger in gastrointestinal disorders: A systematic review
2018-12-01M.N. Bodagh, K. Malekzadeh, S. Hekmatdoost • Evidence-Based Complementary and Alternative Medicine (open access on PMC)
Evaluation of Adverse Effects and Tolerability of Dietary Ginger Supplementation
2025-05-01L. G. Aregawi et al. • Food and Chemical Toxicology
Safety Assessment of Zingiber officinale (Ginger)-Derived Ingredients
2023-01-09CIR Expert Panel • Cosmetic Ingredient Review
Risk Profile: Pathogens and Filth in Spices
2018-10-01FDA CFSAN • U.S. FDA