Supplement

Micronutrients (vitamin D, C, zinc)

Supplement.

How to take it

There is no established standard dose for this case; it is advisable to consult a professional.

Effect by goal · level of evidence

Respiratory infections in adults

reduces Moderate meta-analysis (AAA)

Systematic review with meta-analysis: vitamin D reduced the risk of acute respiratory infections; vitamin C and zinc were associated mainly with shorter symptoms. Modest effect, and greater if there is a prior deficiency.

View the study (meta-analysis) →

In depth

Supplement · Highest evidence: Moderate · 1 finding

Findings

Respiratory infections in adults — reduces (Moderate, meta-analysis). Systematic review with meta-analysis: vitamin D reduced the risk of acute respiratory infections; vitamin C and zinc were associated mainly with shorter symptoms. Modest effect, and larger if there is a prior deficiency. 33472840

Information, not medical advice. Prescription drugs require a doctor.

Information, not medical advice. Scientific evidence reflects the quality of the studies.