Ginger is both a spice and one of the oldest items in the herbal medicine cabinet. Its bite comes from gingerol, part of which converts to shogaol when ginger is dried or heated. Both compounds have documented anti-inflammatory and antioxidant activity.
Supplement marketing tends to present ginger as a cure-all. The areas where human trials agree are narrower than that — but they are real. Here they are.
Key benefits
It settles nausea and vomiting
This is ginger's best-supported effect. Randomised controlled trials covering morning sickness, motion sickness, post-operative nausea and chemotherapy-induced nausea have repeatedly found ginger to beat placebo. Most used around one gram per day.
It helps the stomach empty, so digestion feels easier
Ginger has been shown to shorten gastric emptying time. That can reduce the heavy, bloated feeling after a large or fatty meal — which is exactly why so many cuisines serve ginger alongside rich food.
It lowers inflammatory markers and muscle soreness
Gingerol and shogaol suppress the production of inflammatory signalling molecules. Trials in knee osteoarthritis report modest pain reduction, and small studies find less delayed-onset muscle soreness after hard exercise. The effect sizes are small, but the direction is consistent.
It eases menstrual pain
Women taking ginger powder around the start of their period reported significantly less pain than those on placebo, and in some trials relief comparable to ibuprofen. This is not a reason to drop painkillers, but it is a reasonable addition.
How to eat it well
- Many of ginger's actives are fat-soluble. Sautéing it briefly in oil, or eating it with a dish that contains fat, helps absorption.
- Peel thinly. The aromatic compounds sit just under the skin, so scrape it with the edge of a spoon rather than cutting it away.
- For tea, slice thin and steep for at least ten minutes. Boiling converts some gingerol to shogaol, which is what makes the drink feel warming.
- A sensible dose is 1–3 g dried per day (roughly 5–10 g fresh, a thumb-tip piece). Taking more does not scale the benefit.
- Grate a batch and freeze it in portions — it drops straight into soups, stir-fries and dressings.
What to watch out for
- Above about 4 g a day, heartburn, stomach discomfort and loose stools become common.
- If you take anticoagulants or antiplatelet drugs such as warfarin, ginger may add to bleeding risk; check with your clinician.
- Use caution with gallstones, since ginger stimulates bile flow.
- In pregnancy, 1 g per day or less is the usual recommendation. Ask your obstetric provider first.
- If you take blood sugar or blood pressure medication, monitor your readings.
Nutrition
Approximate values per 100 g edible portion.
- Calories
- 80 kcal
- Carbohydrates
- 17.8 g
- Fiber
- 2.0 g
- Protein
- 1.8 g
- Fat
- 0.8 g
- Potassium
- 415 mg
- Magnesium
- 43 mg
- Vitamin C
- 5 mg
Key nutrients
- Gingerol
- Potassium
- Magnesium
- Vitamin C