Is Ginger Good for You? What Is in It, How Much You Get and What the Studies Say

Ginger has been in British kitchens for the best part of a thousand years and in clinical trials for about forty, which puts more than a hundred randomised studies behind one knobbly rhizome. So, is ginger good for you? It depends on which ginger, how much, and which question you are asking. Here is what is in it, roughly how much a cup of tea or a stir-fry delivers, how strong each line of research is, and why no label in the UK or EU is allowed to tell you.

What Is Ginger?

Ginger is the rhizome of Zingiber officinale, a flowering plant native to the warm parts of Asia. A rhizome is an underground stem rather than a root, which is why the knobbly piece in your fruit bowl looks like something that grew sideways. Everyday English calls it ginger root. Botanically, it is the stem.

It belongs to the Zingiberaceae family, alongside turmeric, cardamom and galangal, and the warm, slightly citrussy note that runs through all four is a family resemblance.⊕ In the UK it arrives fresh, ground, pickled, crystallised, juiced and, increasingly, in capsules.

What Is in Ginger, and Why Does It Taste Like That?

The heat of fresh ginger comes from a group of compounds called gingerols, chiefly 6-gingerol. Dry or heat the rhizome and gingerols lose a water molecule and become shogaols, which are more pungent. That one piece of chemistry is why ground ginger tastes hotter and sharper than fresh. Cooking produces a third compound, zingerone, milder and sweeter, and a large part of why gingerbread smells the way it does. The aroma, as opposed to the heat, comes from volatile oils, the main one being zingiberene.⊕

Researchers have described more than 400 compounds in ginger.⊕ Laboratory interest centres on gingerols and shogaols; human trials mostly use whole dried ginger. "What 6-gingerol does in a dish" and "what ginger does in a person" are therefore two different questions, and only the second is covered by the research below.

How Much Ginger Do You Actually Get?

Almost nobody answers this, and it is the question that makes every study readable. Fresh ginger is mostly water, so 10 g of fresh ginger carries roughly the same ginger solids as 2 g of dried powder. The UK's Committee on Toxicity (COT) worked through the shop shelf in its 2025 review, which gives real numbers rather than guesses:⊕

• A thumb of fresh ginger, the 2 to 3 cm piece most recipes call for, is roughly 10 to 15 g, or around 2 g dried-equivalent once grated into a stir-fry.
• Tea bags are blends. COT's examples put UK lemon-and-ginger and spiced-ginger bags at 0.5 to 1.4 g of dried ginger each.
• Capsules and tablets sold in the UK range from 250 mg to about 1.2 g of dried root per daily dose.
• Ginger shots contained the equivalent of roughly 10 to 28 g of fresh ginger in COT's examples. The committee's wider point was that the variable composition of concentrated products adds uncertainty about how much ginger a person is actually consuming.⊕ Shots deserve a separate article.
• Biscuits and ginger beer are mostly sugar and flavouring. Nobody should count them as ginger intake.

For scale, a 2020 review of 109 randomised trials found that 0.5 to 1.5 g of dried ginger a day was the range most often used, with a few trials going as high as 4 g.⊕ Those are descriptions of what was studied, not a recommendation. Ordinary cooking simply puts you in the range the studies looked at.

Is Ginger Tea Good for You?

Tea is how most people in Britain take ginger, so it deserves its own answer. What a bag holds depends on the blend, a lemon-and-ginger bag being perhaps a third ginger and a spiced-ginger bag closer to three-quarters, and the water only extracts part of that. Tea from fresh slices is gentler still; grating or simmering pulls out more.

Almost no trials used tea, so most of what is written about ginger tea benefits is in fact evidence about ginger, which a cup provides in a modest and variable amount. The cup itself is a warm, sugar-free drink with a well-studied spice in it, and that is reason enough to enjoy one.

What Has the Research Looked At, and How Strong Is It?

The 2020 review mapped its 109 randomised controlled trials by what they measured: nausea and vomiting, gastrointestinal function, pain, inflammatory markers, and metabolic and vascular outcomes. Forty-three of those trials met the authors' bar for high-quality evidence, and the authors found the results for nausea in pregnancy, inflammation and digestive function consistently supported across them.⊕ That is a substantial body of good evidence for a kitchen spice. A search for ginger benefits turns up long lists; the clearest way through is thread by thread, with the strength of each stated plainly.

Nausea in early pregnancy is the best-supported thread. A 2014 meta-analysis of 12 trials in 1,278 women reported fewer nausea symptoms with ginger than with placebo, while the result for vomiting did not reach significance; the authors called the evidence limited and of low quality.⊕ The NHS lists "foods or drinks containing ginger" among the things to try for morning sickness, noting that "there's some evidence ginger may help reduce nausea and vomiting", and advises checking with a pharmacist before taking ginger supplements in pregnancy.⊕

Motion sickness is where two careful bodies disagree. The European Medicines Agency's herbal committee reviewed the trials and concluded that powdered ginger was "more effective than placebo and as effective as other medicines" at preventing motion-sickness nausea, enough to grant it well-established use in licensed herbal medicines.⊕ The US National Center for Complementary and Integrative Health, reading a similar literature, says most motion-sickness studies "haven't shown it to be helpful".⊕ Two expert readings, two conclusions.

Nausea after surgery and during chemotherapy has also been studied. NCCIH describes the results in both settings as uncertain.⊕

Digestion and bloating. Ginger's longest-standing use is for the stomach. The EMA monograph lists "mild, spasmodic gastrointestinal complaints including bloating and flatulence" as a traditional use, meaning plausible and used safely for at least thirty years.⊕ The trial evidence is thinner than the tradition: a small study in 11 people with indigestion found the stomach emptied faster after 1.2 g of ginger,⊕ and a 2019 review of the gastrointestinal trials found nausea the one outcome with reasonable support.⊕ A spice is one small part of digestion; what shapes digestion day to day is fibre, plant variety, sleep and habits, and ginger sits comfortably among the plants.

Menstrual pain. A 2021 meta-analysis pooled five placebo-controlled trials in women with painful periods and reported lower pain scores with ginger.⊕ The trials were small, so this counts as preliminary evidence, with more research needed before anyone can call it settled. This is the research behind the "ginger for women" search.

Muscle soreness after exercise. A 2010 study gave 2 g a day of raw or heat-treated ginger for 11 days to groups of 34 and 40 volunteers, then had them do eccentric arm exercise. Muscle pain a day later was 25 and 23 per cent lower than with placebo. A spice company's research institute funded the study, which the authors declared.⊕ A 2015 systematic review of ginger in sport concluded that around 2 g a day may modestly reduce muscle pain if taken for at least five days, and found no effect on performance measures.⊕

Research on recovery after training has looked far more closely at the amino acid leucine, its metabolite HMB and the amino acid L-glutamine than at any spice.

Inflammatory markers. Ginger is one of the spices most often studied for its effect on inflammatory markers. A 2020 meta-analysis of 16 trials in 1,010 people reported lower C-reactive protein and TNF-alpha after ginger, though interleukin-6 did not change and the trials varied widely.⊕ The effect is thought to come from gingerols and shogaols and what they do in the body once the liver has metabolised them; in cell and animal studies they act on several of the signalling pathways involved in inflammation.⊕

Where Does Ginger Stand With UK and EU Regulators?

If the research is this extensive, why can't a packet of ginger tea say anything about it?

In 2010, the European Commission put more than 2,000 health claims for plants and plant preparations on hold under the EU's health-claims regulation, ginger's among them, while it decided how to treat evidence from traditional use. The process has never resumed. The Commission's own 2020 evaluation acknowledged that health claims on plants "are not yet fully regulated".⊕ On-hold claims can still appear on products under transitional rules, at the seller's own risk, but they have not been scientifically assessed, and the UK carried the same position into its own register after Brexit. Ginger has no authorised health claim in the UK or EU, then, not because it was assessed and failed, but because it has been waiting in a queue for sixteen years. That is why this article says "research has looked at" rather than "ginger does".

Alongside that, and quite separately, sits the European Medicines Agency, whose herbal committee publishes monographs that EU countries use when licensing herbal medicines. Its revised ginger monograph, adopted in May 2025, draws two conclusions. Powdered ginger has well-established use for preventing nausea and vomiting in motion sickness, a status that requires published clinical studies and at least ten years of documented medicinal use in the EU. Ginger also has traditional use for mild spasmodic gastrointestinal complaints including bloating and flatulence, temporary loss of appetite, minor joint pain and cold symptoms, a status that requires at least thirty years of safe use and plausible, but not trial-proven, effectiveness.⊕ The monograph covers licensed herbal medicines only. The EMA states that foods, food supplements and cosmetics "do not follow the same criteria" and are excluded from it, so a ginger capsule sold as a food supplement is not covered, however similar the contents.

Put the two together and you have the picture: a food regulator that has not assessed ginger's claims, and a medicines regulator that has accepted one of them for a specific product type. Few botanicals have even that.

Is Ginger Safe, and Who Should Check First?

Culinary ginger, the amounts you cook with and drink as tea, is "not considered a health concern" according to the UK's Committee on Toxicity, which reviewed the evidence in May 2025.⊕ The side effects the EMA lists are what you would expect from a hot spice: stomach upset, belching, indigestion, heartburn and nausea, plus allergic skin reactions in some people.⊕ NCCIH adds mouth and throat irritation and diarrhoea.⊕ Habitual dietary intake, the ginger you cook with or brew, is not an issue. It is high-dose supplements where a word with a pharmacist or GP first makes sense.

That applies in particular to a few groups. If you take blood-thinning or blood-sugar medicines, or have surgery coming up, check before starting ginger supplements, a precaution that rests on case reports rather than trials.⊕ In pregnancy, the NHS lists ginger foods and drinks as something to try for nausea, and both the NHS and the Committee on Toxicity say to ask a pharmacist before taking supplements.⊕ The EMA monograph, which covers licensed medicinal products only, goes further: as a precaution it says it is preferable to avoid the medicinal product in pregnancy, and it does not recommend it during breastfeeding or under 18, for lack of data; the EMA's public summary for patients puts it more plainly as "do not use" if you are pregnant or breastfeeding.⊕ The committee also notes that contamination of ginger with heavy metals or mycotoxins "cannot be excluded",⊕ which is a reason to buy from reputable sources, not to worry about the ginger in your fridge.

Is Ginger the Same as Turmeric?

No, though they are close relatives in the Zingiberaceae family. Ginger's characteristic compounds are gingerols and shogaols; turmeric's are curcuminoids, chiefly curcumin, which also gives it its colour.⊕ Turmeric's health claims sit on the same EU on-hold list as ginger's, and it deserves an article of its own.

Ginger FAQs

Is Ginger Good for You?

As a food, there is every reason to enjoy it. Ginger is a sugar-free spice, culinary amounts are not considered a health concern by the UK's Committee on Toxicity, and it has a larger research literature than almost any other kitchen ingredient: more than a hundred trials, chiefly on nausea, digestion, pain and inflammatory markers, with the pregnancy-nausea thread the best supported. No health claim for ginger is authorised in the UK or EU, so the research rather than the label is where to look.

What Is Ginger Good For?

Researchers have studied it chiefly for nausea, gastrointestinal function, pain and inflammatory markers. The EMA accepts powdered ginger for preventing motion-sickness nausea in licensed herbal medicines, and lists bloating, flatulence, minor joint pain and cold symptoms as traditional uses.

How Much Ginger Per Day Was Used in Studies?

Trials most often used 0.5 to 1.5 g of dried ginger a day, with a few going up to about 4 g. That describes the studies, not a recommendation; there is no UK reference intake for ginger.

How Much Ginger Is in a Cup of Ginger Tea?

It depends on the blend. UK tea bags examined by the Committee on Toxicity held 0.5 to 1.4 g of dried ginger each, and a brewed cup extracts only part of that. Tea from fresh slices contains less; grating or simmering extracts more.

Does Ginger Help With Nausea?

A meta-analysis of trials in early pregnancy reported fewer nausea symptoms with ginger than placebo, and the NHS lists ginger foods and drinks among things to try for morning sickness, with a pharmacist check before supplements. On motion sickness, the EMA and NCCIH read the evidence differently.

Is Ginger Anti-Inflammatory?

The trial evidence is mixed. A 2020 meta-analysis of 16 trials reported lower C-reactive protein and TNF-alpha after ginger, while interleukin-6 did not change, and in cell and animal studies gingerols and shogaols act on inflammatory pathways. Whether that adds up to an anti-inflammatory effect in people is not settled, and no claim is authorised. Overall diet, regular exercise and sleep do more than any single spice.

Who Should Avoid Ginger Supplements?

Anyone pregnant or breastfeeding, anyone taking blood-thinning or blood-sugar medicines, anyone with surgery scheduled, and under-18s for medicinal products should check with a pharmacist or GP before using concentrated ginger. Culinary amounts are not considered a concern.

The Bottom Line

Ginger is a rhizome with interesting chemistry, a research literature of more than a hundred trials, and an unusual regulatory position: a food regulator that has never got round to assessing its claims, and a medicines regulator that has accepted one of them. The evidence is strongest for nausea in early pregnancy, divided on motion sickness, preliminary but promising for period pain and muscle soreness, traditional rather than trial-based for digestion, and encouraging for some inflammatory markers. A thumb of fresh ginger in a stir-fry is roughly ten grams, more than many trials used. Enjoy it as a food, let the research rather than the label set your expectations, and ask a pharmacist before reaching for anything concentrated.