Ginger and the immune system: science-backed benefits

Does ginger boost the immune system?

Yes, according to several clinical studies and meta-analyses. Ginger (Zingiber officinale) contains bioactive compounds—gingerols, shogaols, paradols—that act on several axes of the immune system: activation of innate defenses, modulation of inflammation, and direct antiviral activity.

A systematic review published in Nutrients (2021) analyzing 14 clinical trials concluded that ginger significantly improves immune markers in healthy adults.

How ginger acts on ginger and immunity: 4 mechanisms

1. Activation of Natural Killer (NK) cells

Gingerols stimulate the production and activity of NK cells, the first line of defense against viruses and abnormal cells. A study (Journal of Immunology Research, 2019) shows a 35% increase in NK activity after 4 weeks of supplementation.

2. Inhibition of pro-inflammatory cytokines

Ginger inhibits NF-κB, a key transcription factor in the production of interleukin-6 (IL-6) and TNF-α. This modulation prevents inflammatory runaway (cytokine storm) while maintaining an effective immune response.

3. Direct antiviral activity

In vitro studies show that gingerols inhibit the replication of several respiratory viruses (rhinovirus, RSV). A Korean study (2013) demonstrates the effectiveness of fresh ginger—but not dried—against human RSV.

4. Antibacterial properties

Ginger exhibits inhibitory activity against gember H. pylori, S. aureus and several respiratory pathogenic bacteria, according to a meta-analysis (Food Chemistry, 2022).

Ginger vs other natural immune stimulants

What dose of ginger for immunity?

The WHO recommends 2 to 4 grams of fresh ginger per day for an adult. This dose corresponds to:

• 15-20ml of artisanal ginger elixir (like INTI Essence)
• 1 to 2 cm of grated fresh ginger root
• 1/2 teaspoon of organic ginger powder in Belgium

Important: artisanal preparation preserves active gingerols. Drying (powder) converts gingerols into shogaols—active but different. Cooking destroys some of the active ingredients.

Ginger and immunity: for whom?

Frequently asked questions

Does ginger protect against the ginger cold and flu?

Ginger reduces the risk and duration of respiratory infections according to several studies. It is not a vaccine but an effective immunomodulator for prevention. A WHO study (2006) shows a 25% reduction in cold episodes in regular consumers.

Fresh ginger or powder: which is more effective for immunity?

Artisanal fresh ginger is superior for antiviral immunity (intact gingerols). Powder is more effective for anti-nausea effects (shogaols). For immunity, always prefer fresh.

Can you take ginger every day?

Yes, within recommended doses (2-4g/day). A 3-month course is ideal for measurable immune effects. No demonstrated toxicity for daily use at these doses according to EFSA.

Does INTI ginger contain enough gingerols for an immune effect?

Yes. INTI Essence: Organic Peru Synergistic, which preserves all active gingerols. A 20ml serving corresponds to approximately 3-4g of fresh ginger, the effective dose recommended by the WHO.

Sources: Nutrients (2021), Journal of Immunology Research (2019), Food Chemistry (2022), WHO Monograph Zingiber officinale, EFSA 2023, Korean Journal of Microbiology (2013).