The Claim

Intermittent prophylactic zinc supplementation, administered as 10 mg daily for two weeks at 6/10-week, 10/14-week, and 9-month vaccination visits, reduces the annual incidence of acute respiratory infections by 72% and acute diarrhoea by 49% in infants aged 6 to 18 months in a zinc-deficient population, while also increasing mean weight gain by 332 grams and length gain by 1.4 cm over six months.

Source: Efficacy of prophylactic intermittent zinc supplementation for reducing acute respiratory infections and diarrhoea in infants: A randomized controlled trial

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
87score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

In infants aged 6 to 18 months in zinc-deficient populations, intermittent zinc supplementation given as 10 mg daily for two weeks at specific vaccination visits reduces the annual rate of acute respiratory infections by 72% and acute diarrhoea by 49%, and increases average weight gain by 332 grams and length gain by 1.4 cm over six months.

See the scientific wording

Intermittent prophylactic zinc supplementation, administered as 10 mg daily for two weeks at 6/10-week, 10/14-week, and 9-month vaccination visits, reduces the annual incidence of acute respiratory infections by 72% and acute diarrhoea by 49% in infants aged 6 to 18 months in a zinc-deficient population, while also increasing mean weight gain by 332 grams and length gain by 1.4 cm over six months.

Why this might work

Zinc strengthens the lining of the gut and lungs, stops viruses from multiplying, and helps the body make more proteins and grow faster. This keeps babies from getting sick as often and helps them gain weight and length.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Efficacy of prophylactic intermittent zinc supplementation for reducing acute respiratory infections and diarrhoea in infants: A randomized controlled trial

    Giving babies zinc pills twice during their first year, for two weeks each time, helped them get fewer colds and stomach bugs, and made them grow bigger and heavier than babies who didn’t get the zinc.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.