Elderberry (Sambucus nigra)
Berry extract supporting immune response during cold and flu season.
By Suplagen Team · Updated
What it is
Black elderberry (Sambucus nigra) extract is rich in anthocyanins and has been traditionally used for immune support during respiratory illness.
How it works
Anthocyanins and flavonoids inhibit viral entry; stimulate cytokine production for immune activation.
What the evidence says
Moderate evidence for reducing duration and severity of colds/flu; best used at illness onset.
How much to take
The catalog range is 300 to 600 mg per dose, with a 1,200 mg daily ceiling. The evidence is moderate for shortening colds and flu, and it's tied to timing: start at symptom onset, and you can take it up to 3 times daily while sick.
Use commercially prepared extracts only. Raw elderberries contain cyanogenic glycosides, which is a polite way of saying don't cook your own.
When and how to take it
With food. As a daily preventive it has weak support; its evidence is for the first days of an illness.
It's a primary pick in our immune support guide, with the timing rule attached.
Who should skip it
Organ transplant recipients avoid it entirely, and autoimmune disease is a caution, because elderberry stimulates immune activity. Interactions: immunosuppressants (moderate) and diuretics (mild). The catalog also says not to use it during a cytokine storm. Pregnancy safety isn't established.
Safety Notes
- Only use commercially prepared extracts — raw elderberries contain cyanogenic glycosides. Do not use during cytokine storm.
- Use caution with: autoimmune disease (caution), organ transplant (avoid).
- immunosuppressants: Elderberry stimulates immune function; may counteract immunosuppressive drugs.
- diuretics: Elderberry may have mild diuretic effects.
Common questions
How much elderberry should I take when sick?
300 to 600 mg per dose, up to 3 times daily, starting at the first symptoms. Stay under the 1,200 mg daily ceiling.
Should I take elderberry every day?
The evidence is for illness onset, not daily prevention. Save it for the first days of a cold.
Is raw elderberry safe?
No. Raw elderberries contain cyanogenic glycosides. Use commercial extracts only.