Evidence map›Paper›PMID 28208784›Full record

ReviewNutrients2017

Lutein and Zeaxanthin-Food Sources, Bioavailability  and Dietary Variety in Age-Related Macular  Degeneration Protection.

Bronwyn Eisenhauer, Sharon Natoli, Gerald Liew, Victoria M Flood

Abstract readReview
In one paragraph

Review in Nutrients, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed, 4 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

57 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Bronwyn EisenhauerFood and Nutrition Australia, Sydney NSW 2000, Australia. beisenhauer@foodnut.com.au.
Sharon NatoliFood and Nutrition Australia, Sydney NSW 2000, Australia. snatoli@foodnut.com.au.
Gerald LiewCentre for Vision Research, Department of Ophthalmology, Westmead Millennium Institute, The University of Sydney, Sydney NSW 2145, Australia. gerald.liew@sydney.edu.au.
Victoria M FloodFaculty of Health Science, The University of Sydney, Sydney NSW 2141, Australia. vicki.flood@sydney.edu.au.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lutein and zeaxanthin (L/Z) are the predominant carotenoids which accumulate in the retina of  the eye. The impact of L/Z intake on the risk and progression of age-related macular degeneration (AMD),  a leading cause of blindness in the developed world, has been investigated in cohort studies and clinical  trials. The aims of this review were to critically examine the literature and evaluate the current evidence  relating to L/Z intake and AMD, and describe important food sources and factors that increase the  bioavailability of L/Z, to inform dietary models. Cohort studies generally assessed L/Z from dietary  sources, while clinical trials focused on providing L/Z as a supplement. Important considerations to take  into account in relation to dietary L/Z include: nutrient-rich sources of L/Z, cooking methods, diet variety  and the use of healthy fats. Dietary models include examples of how suggested effective levels of L/Z can  be achieved through diet alone, with values of 5 mg and 10 mg per day described. These diet models  depict a variety of food sources, not only from dark green leafy vegetables, but also include pistachio nuts  and other highly bioavailable sources of L/Z such as eggs. This review and the diet models outlined  provide information about the importance of diet variety among people at high risk of AMD or with early  signs and symptoms of AMD.

Indexed as

Dietary SupplementsFood AnalysisBiological AvailabilityDietHumansLuteinMacular DegenerationZeaxanthinsLuteinZeaxanthinsage‐related  macular  degenerationbioavailabilitycarotenoidsluteinxanthophyllszeaxanthin

Identifiers

PMID28208784
PMCPMC5331551

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.