Seasonal Wellness

Nutrients connected to Seasonal Wellness

A link means the body needs the nutrient for this, or that low intake is linked to it. It does not mean extra supplements help if your intake is already adequate; each link shows how strong the evidence is.

• AndrographisPreliminary or mixed

  The main research question is short-term relief of cough and sore throat during colds. The 2017 review found a benefit but called the evidence limited by poor quality.

• Immune Support FormulasPreliminary or mixed

  Studied mainly for catching or shortening colds; results are small and mixed.

• Polyphenols: quercetin and resveratrolPreliminary or mixed

  One small trial found lower hay fever symptom scores with an absorbable quercetin product; larger trials are needed.

• EchinaceaPreliminary or mixed

  Used around cold season. Evidence for preventing colds is small and mixed.

• Pelargonium (Umckaloabo)Preliminary or mixed

  Used for cold symptoms in the EU on the basis of long-standing use; Cochrane found very low-quality evidence for colds, from one study.

• MulleinPreliminary or mixed

  Traditional-use acceptance in the EU for sore throat with dry cough and cold; no clinical studies.

• ForsythiaPreliminary or mixed

  Used traditionally at the start of colds; a small formula trial found lower cold symptom scores, but forsythia alone has not been tested.

• Sweet wormwood (Artemisia annua)Preliminary or mixed

  Allergy studies used pollen immunotherapy, not tea or herb; open-label evidence only.

• Perilla (shiso)Preliminary or mixed

  One small trial found fewer hay fever symptoms with a perilla extract than with placebo; larger confirmation was not found.

• Wild indigoPreliminary or mixed

  One trial of a Baptisia-Echinacea-Thuja extract found shorter cold symptoms at the higher dose; effect of wild indigo alone is unknown.

• Elderflower TeaPreliminary or mixed

  Accepted in the EU as a traditional-use tea for early cold symptoms. This is based on long use, not trials.

• Linden Flower TeaPreliminary or mixed

  EU traditional-use approval for common cold symptoms; not trial proof.

• Echinacea TeaPreliminary or mixed

  Colds are the studied topic; tea evidence is one older multi-herb tea trial.

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