The Role of Lutein, Zeaxanthin, and Fish Oil on Cognitive Function and Bone Health in Healthy Adults

We seek to identify the impact of lutein, zeaxanthin, and fish oil supplements on macular pigment optical density (MPOD), cognitive performance, and bone health in healthy adults compared to placebo controls after 6 months.

This is an unofficial, parsed copy. The official listing is authoritative:

Open on research.tamu.edu

Pay and time

Guaranteed $/hour

Unknown

Pay or time commitment could not be read from the listing. Unknown is not the same as unpaid.

Compensation

$225

form of payment not stated

Time

Not stated

spread over about 26.09 weeks

Low parser confidence on duration (medium). Read the source text below before relying on these figures.

Source text — check our reading against the listing

Below is the compensation and duration text exactly as the university publishes it, markup and all. Everything above is derived from these two strings. If they disagree with our numbers, believe these.

Compensation, verbatim

$225.00 (Baseline appointments - $50; 3-month appointments - $75; 6 month appointments - $100)

How it was read:

  • stated total $225 matches its itemised breakdown

Duration, verbatim

Total 6 months; 13 days total Pre-study appointment, baseline appointments, 3-month appointments and 6-month-appointments (3 days each totaling 9 days), 3 days to pick up supplements
Compensation confidence:
high
Duration confidence:
medium
Currency kind:
unknown
Raffle only:
no

Who can take part

Age:
18 to 45

The listing screens out:

  • Pregnancy or lactation

Other criteria mentioned in the listing:

  • BMI 18.5-30 required
  • excludes pregnancy / lactation
  • neurological history is mentioned but not clearly a criterion - confirm with the study team
  • involves blood draws
  • allergy screening applies

Cannot tell from your details

  • This study enrols ages 18-45. Add your age to check whether you fit.
  • This study screens out people who are pregnant or lactating and your profile does not say.
  • The listing is ambiguous: neurological history is mentioned but not clearly a criterion.
  • This is a filtering hint based on the wording of the listing, not medical advice. The study team makes the final call.
Your details(not set — nothing is filtered out)

Private, local-first details.

Your answers are saved in this browser. If you sign in with one of the two provisioned Google accounts, they also sync to the same private Firebase owner vault so you do not have to re-enter them on another device. There is no analytics on this page. PressingClear my details clears the profile locally and from the synced record.

What you enter is only used to sort listings into "looks like a fit", "probably not", and "cannot tell". That is areading of the wording on each listing, not a medical or official determination. Only the study team can say whether you qualify, and they will screen you themselves.

How old are you?

Nearly every listing states an age range, so this is the single most useful answer.

Are you right-handed?

Some brain-imaging studies enrol right-handed participants only.

Can you safely have an MRI scan?

Say no if you have metal in your body, an implanted device, a pacemaker, or you cannot tolerate an enclosed scanner.

Do you have a cardiovascular condition?

For example heart disease, high blood pressure, or a past cardiac event.

Are you currently pregnant?
Do you have a history of seizures or epilepsy?
Sex

A handful of studies enrol one sex only. Nothing else uses this.

Would you be willing to fast before a visit?

A few studies need you to arrive without having eaten.

Are you a Texas A&M student?

Some studies recruit through the university subject pool; a few want non-students.

Get in touch

Many of these postings are out of date, so the first thing to ask is whether the study is still recruiting. The draft below does that for you, and states anything from your details that the listing screens for — it will not leave that out to improve your odds.

Contact the study team

The coordinator's address is hidden until you ask for it, so crawlers cannot scrape it off this page.

Study record

IRB number:
STUDY2024-0035
IRB approval:
September 10, 2024
Principal investigator:
PI: Karen Beathard, PhD, RDN, LD, FAND
Coordinator:
Karen Beathard
Recruitment opened:
October 2, 2024
Recruitment ends:
April 2, 2025
Posted:
December 19, 2024
Last modified upstream:
December 19, 2024
Posting length:
6 months
Location:
Bryan-College Station – on-campus
Format:
Multiple Visits
Field:
Brain Sciences, Clinical Trials
Topic:
Health

Data snapshot taken August 14, 2026.