Ginger and Flu: How to Strengthen Your Natural Defenses this Winter [2026]

Ginger and Flu: 6-Gingerol Activates your Immune Defenses

Summary: 6-gingerol activates NK (natural killer) cells, stimulates macrophages and inhibits the replication of rhinoviruses and influenza viruses. The Anh systematic review (2020) confirms the significant improvement in immune parameters. INTI = ginger + turmeric + black pepper: triple immunostimulating action.

How ginger fights flu and colds

1. Activation of NK (Natural Killer) cells

NK cells are your first line of defense. They detect and destroy cells infected by a virus. 6-gingerol increases their cytotoxic activity → faster elimination of foci of viral infection.

2. Stimulation of macrophages

Ginger activates macrophages via TLR-4 signaling → increased phagocytosis (cleaning of pathogens) + production of protective cytokines (IL-12, IFN-γ).

3. Direct antiviral action

6-gingerol and 6-shogaol inhibit the replication of rhinoviruses (cold) and influenza viruses in cell culture. Mechanism: blocking of viral adhesion proteins → the virus cannot enter your cells.

4. Controlled anti-inflammation

The flu is dangerous because of the “cytokine storm” — an immune overreaction. Ginger inhibits NF-κB → controls inflammation without suppressing helpful immune response.

Turmeric + black pepper from INTI: immune reinforcement

  • Curcumin (turmeric) — activates dendritic cells and T-helper lymphocytes → strengthens adaptive immunity (immune memory)
  • Piperine (black pepper) — increases the bioavailability of curcumin by 2000% (Shoba 1998)
  • Triple synergy — ginger (innate immunity) + turmeric (adaptive immunity) + black pepper (absorption) = complete immune coverage

Sugar weakens your immunity

Loma Linda University study: 100g of sugar reduces the phagocytic activity of white blood cells by 50% for 5 hours.

A shot of ginger with 33g of sugar/100ml sabotages the immunostimulating effect of ginger. Ginger activates your NK cells, sugar puts them to sleep.

Immunity impact Sweet Shot NRTI (1.1g)
NK cells ↓ deleted by sugar ↑ activated by gingerol
Phagocytosis ↓ -50% (5h) ↑ stimulated
Adaptive immunity No turmeric Turmeric + piperine

NRTI Winter Immune Protocol

  1. Prevention — 1 NRTI shot every morning from October to March (flu season)
  2. First symptoms — 2 shots per day at the first signs (irritable throat, chills)
  3. Turmeric — curcumin strengthens adaptive immunity = more effective immune memory
  4. Regularity — the effects on NK cells require 2-4 weeks of regular intake

Frequently asked questions

Does ginger help with the flu?

Ginger has documented antiviral properties: 6-gingerol inhibits the replication of influenza viruses in cell culture and activates NK cells and macrophages of the immune system. It does not replace the flu vaccine, but is a natural supplement to strengthen your defenses. INTI combines ginger, turmeric and black pepper for complete immunostimulating action.

When to take ginger so as not to get sick?

Start daily intake in early fall (October) so that your immune system is strengthened before the flu peak (December-February). The effects on NK cells require 2-4 weeks of regular intake. An INTI shot in the morning, before breakfast, is the optimal timing.

⚠️ Ginger does not replace flu vaccination. Consult your doctor if your symptoms persist or worsen.

🌿 INTI — Organic Ginger Elixir

Ginger + Turmeric + Black Pepper | Organic | 1.1g sugar | Made in Belgium 🇧🇪

⭐ 7,400+ orders • Delivery 24-48 hours Belgium • Free from 50€

1 bottle = 30 shots = less than €0.77/day