A randomised double-blind placebo-controlled trial of the effect of vitamin and mineral supplements on morbidity from infections in men and women over 65 years

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN66376460

Enrollment

910

Registered

2001-10-05

Start date

2001-08-01

Completion date

Unknown

Last updated

2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mineral & vitamin supplementation Nutritional, Metabolic, Endocrine

Interventions

Daily vitamin and mineral supplement, approximating the Reference Nutrient Intake (RNI) of 11 vitamins and five minerals, or a matching placebo in a double blind design for 1 year

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Men and women over 65 years

Exclusion criteria

Exclusion criteria: People too unwell to take part

Design outcomes

Primary

Measure	Time frame
1. Primary care contacts 2. Self-reported days of infection 3. Quality of life	—

Secondary

Measure	Time frame
Antibiotic prescriptions, hospital admissions, adverse events, health service costs and compliance.	—

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026