The impact of carotenoids on visual functions and sport performance

The effect of macular carotenoids and omega-3 supplementation on performance in precision sports: the Sport Nutrition Intervention in Performance Exercise (SNIPE) study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN18761383

Enrollment

Registered

2026-06-05

Start date

2022-09-06

Completion date

Unknown

Last updated

2026-06-15

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

Conditions

Visual function and sport performance in precision sports athletes Other

Interventions

This study was a 1:1, placebo-controlled trial in which participants were randomly assigned to the active or placebo groups in a double-blind fashion. Participants were required to consume one capsul

Eligibility

Sex/Gender

All

Age

18 Years to 50 Years

Inclusion criteria

Inclusion criteria: 1. Athletes from shooting, archery or Egame 2. Healthy individuals 3. Aged 18 years or over 4. No ocular pathology

Exclusion criteria

Exclusion criteria: 1. Consumption of carotenoid supplements in the past 3 months 2. Unable to maintain their current diet throughout the studies 3. Fish and shellfish allergy 4. Presence of ocular disease, colour blindness, pancreatic disease, atrophic gastritis, insulin-requiring diabetes, or gastrointestinal bleeding disorders 5. Wheelchair bound and unable to take anthropometric measurements

Countries

Singapore

Contacts

Public ContactJohn Nolan

John.Nolan@setu.ie+358 (0)872717474

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Jun 21, 2026