{"ok":true,"entry":{"slug":"ginger","kind":"supplement","name":"ginger","aliases":["Zingiber officinale","gingerol"],"brands_sg":["California Gold Nutrition","NOW Foods","The Ginger People","Life Extension","Nature's Way"],"class":"botanical","tags":["gut","bone-joint"],"use_for":"nausea is the best-studied use; knee data are weaker","use_after":"daily","use_duration":"pregnancy nausea trials ran 4 to 21 days","take_with":null,"pros":["nccih: used safely in many oral research studies","pooled trials: nausea scores improved vs placebo","meta-analyses used 1–3 g a day, or 0.5–1.5 g for nausea"],"cons":["vomiting episodes did not fall against placebo","most motion-sickness trials showed no benefit","heartburn, gut upset and mouth irritation are reported"],"dose_note":"nccih gives no amount; the 2025 umbrella review by paudel and colleagues reports 1 to 3 g a day across the pooled trials it summarises, and 500 to 1,500 mg a day in divided doses, up to two to five times daily, in the pregnancy nausea trials","dosage":{"ul":null,"unit":"g","fda_dv":null,"rda_ai":null,"ul_status":"none_established","population":"general adult","hsa_max_daily":null},"ul_status":"none_established","sg_class":null,"cautions":["pregnancy — nccih says supplement use may be safe; ask first","breastfeeding — nccih says little is known about safety","on any medicine — nccih: check with your health care provider","not listed in hsa's annex a/b — hsa says that list is not exhaustive"],"clashes":[{"src":["nccih_ginger_meds"],"note":"nccih: some herbs and medicines interact in harmful ways; no ginger-specific interaction is named","with":"medicines generally"}],"sources":[{"id":"nccih_ginger_nausea","url":"https://www.nccih.nih.gov/health/ginger","label":"NCCIH — Ginger (What Have We Learned: nausea and vomiting), last updated February 2025","quote":"Ginger has been studied for several types of nausea and vomiting. Most of the studies tested dietary supplements rather than foods. Research shows that ginger may be helpful for nausea and vomiting associated with pregnancy.","accessed":"2026-08-27"},{"id":"nccih_ginger_motion","url":"https://www.nccih.nih.gov/health/ginger","label":"NCCIH — Ginger (What Have We Learned: motion sickness and other uses)","quote":"Most studies of ginger for motion sickness haven't shown it to be helpful. It's uncertain whether ginger is a helpful addition to standard treatments for nausea and vomiting associated with cancer chemotherapy","accessed":"2026-08-27"},{"id":"nccih_ginger_oa","url":"https://www.nccih.nih.gov/health/ginger","label":"NCCIH — Ginger (What Have We Learned: knee osteoarthritis)","quote":"Ginger dietary supplements might be helpful for symptoms of knee osteoarthritis, but much of the research has been of poor quality. Ginger used topically … has not been shown to be helpful for knee osteoarthritis symptoms.","accessed":"2026-08-27"},{"id":"nccih_ginger_safety","url":"https://www.nccih.nih.gov/health/ginger","label":"NCCIH — Ginger (What Do We Know About Safety)","quote":"Ginger has been used safely in many research studies where it was taken orally (by mouth) as a dietary supplement. Ginger products may also be safe for topical use.","accessed":"2026-08-27"},{"id":"nccih_ginger_sideeffects","url":"https://www.nccih.nih.gov/health/ginger","label":"NCCIH — Ginger (Safety: side effects)","quote":"Ginger can have side effects such as abdominal discomfort, heartburn, diarrhea, and mouth and throat irritation when taken orally.","accessed":"2026-08-27"},{"id":"nccih_ginger_pregnancy","url":"https://www.nccih.nih.gov/health/ginger","label":"NCCIH — Ginger (Safety: pregnancy and breastfeeding)","quote":"The use of ginger dietary supplements during pregnancy may be safe. As with all herbal supplements, if you're considering using ginger while pregnant, consult your health care provider. Little is known about whether it's safe to use ginger while breastfeeding.","accessed":"2026-08-27"},{"id":"nccih_ginger_meds","url":"https://www.nccih.nih.gov/health/ginger","label":"NCCIH — Ginger (Safety: medicines)","quote":"If you take any type of medicine, talk with your health care provider before using ginger or any other herbal products; some herbs and medicines interact in harmful ways.","accessed":"2026-08-27"},{"id":"paudel2025_dose","url":"https://europepmc.org/article/PMC/PMC12343617","label":"Pharmacological properties of ginger (Zingiber officinale): what do meta-analyses say? a systematic review (Paudel et al., Front Pharmacol 2025) — doses used","quote":"Ginger was typically administered at doses of 1–3 g/day for anti-inflammatory, antioxidant, and antidiabetic effects, and at 500–1,500 mg/day (in divided doses up to 2–5 times daily) for managing NVP symptoms","accessed":"2026-08-27"},{"id":"paudel2025_nausea","url":"https://europepmc.org/article/PMC/PMC12343617","label":"Paudel et al. 2025 — pooled results for nausea and vomiting in pregnancy (Viljoen et al. meta-analysis, 12 RCTs, 1,278 women, 4–21 days)","quote":"Ginger significantly improved the symptoms of nausea when compared to placebo … Ginger did not significantly reduce the number of vomiting episodes during NVP, when compared to placebo … Duration: 4–21 days","accessed":"2026-08-27"},{"id":"hsa_pr_notlisted","url":"https://file.go.gov.sg/hsa-chp-prohibited-restricted-ing-guidelines.pdf","label":"HSA — Guidelines on Prohibited and Restricted Ingredients in HS and TM, Version 1 (Oct 2025), Annex A and Annex B — searched, no row for this ingredient","quote":"A list of such ingredients and recommended risk mitigation measures can be found in Annex B. This list is not exhaustive. Dealers are responsible to ensure that their products are safe","accessed":"2026-08-27"},{"id":"iherb_sg","url":"https://sg.iherb.com/c/ginger-root","label":"iHerb Singapore — Ginger Root Supplements category (default order, 1 - 48 of 96 results)","quote":"California Gold Nutrition, Silymarin Complex, 120 Veggie Capsules … NOW Foods, Ginger Root, 550 mg … The Ginger People, Gin Gins®, Ginger Chews, Original … Life Extension, Advanced Curcumin Elite™ … Nature's Way, Ginger Root","accessed":"2026-08-27"}],"brand_certs":null,"updated_at":"2026-08-29T16:16:19.87501+08:00"},"disclaimer":"kozen-x is not a medical device and does not give medical advice. it lists what published sources have written down. absence of a record is not the same as safe."}