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Study summary · Brain, cognition & mood

What are the various health benefits of carotenoids, and what is the current state of evidence regarding their efficacy?

In one paragraph

Lutein and Zeaxanthin, a review (Arch Biochem Biophys 2018, PMID 29885291) — more research, including clinical studies, is needed to establish and confirm the specific health benefits of different carotenoids. No numeric effect size is reported for Lutein and Zeaxanthin in the source abstract.

Source: Arch Biochem Biophys 2018, PMID 29885291 ↗ · Research map · How Magellan grades evidence · evidence confidence: low

Arch Biochem Biophys · 2018 · PMID 29885291 · DOI 10.1016/j.abb.2018.06.001

Plain-English summary written and published by Magellan Longevity · medical review by Gabriel Radu, DO (physiatrist, NPI 1376861765). We summarize what the paper reported — we did not run this study.

The takeaway

Carotenoids offer multiple health benefits, particularly for eye health, but more research is needed to confirm their efficacy across all areas.

The question

What are the various health benefits of carotenoids, and what is the current state of evidence regarding their efficacy?

What they tested

The abstract does not state a specific hypothesis for a single study, but rather discusses existing evidence and the need for further research on carotenoids.

How they did it

This abstract is a review of existing evidence and does not describe specific methods for a primary research study.

What they found

Carotenoids primarily act as antioxidants. Lutein and zeaxanthin form macular pigment in the eye, and lutein shows strengthening evidence for reducing the progression of age-related macular eye disease and cataracts. Carotenoids also show evidence for improving cognitive function and cardiovascular health, and may help prevent some cancers. However, large population-based supplementation studies have yielded mixed results for some carotenoids.

What it means

Carotenoids offer various health benefits, including antioxidant effects, eye health improvements (especially lutein for macular degeneration and cataracts), cognitive function, cardiovascular health, and potential cancer prevention. More research, including clinical studies, is needed to establish and confirm the specific health benefits of different carotenoids.

Limitations

Large population-based supplementation studies have produced mixed results for some carotenoids, indicating a need for more research to confirm their health benefits.

“carotenoids also produce improvements in cognitive function and cardiovascular health”— from the published abstract, Arch Biochem Biophys 2018

The paper at a glance

Magellan’s evidence labelmacular pigment, antioxidant (our label for this citation — see PubMed for the paper’s own title and authors)
JournalArch Biochem Biophys
Year2018
PMID29885291 ↗
DOI10.1016/j.abb.2018.06.001 ↗
TopicBrain, cognition & mood

Read the source: PubMed record (authors, abstract, full citation) ↗ · Publisher via doi.org ↗

Where Magellan uses this paper

This citation sits behind the evidence grade on the pages below. Grades are set from the research and are independent of affiliate commissions.

Lutein and Zeaxanthin

The best human evidence concerns eye health in aging: in the landmark AREDS2 randomized trial, adding lutein/zeaxanthin to the AREDS formula missed its primary endpoint, but ten-year follow-up found the pair reduced progression to late disease and proved a safe replacement for beta-carotene, which nearly doubled…

Lutein and Zeaxanthin

Lutein and zeaxanthin are xanthophyll carotenoids—yellow-to-orange plant pigments obtained from the…

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Research describes the compound or intervention studied. It is not a claim about any specific product.

Cite this page

These citations point at this summary. To cite the original paper with its full author list, use the PubMed record or doi.org.

APA
Magellan Longevity. (2026). What are the various health benefits of carotenoids, and what is the current state of evidence regarding their efficacy? [Plain-English summary of Arch Biochem Biophys 2018, PMID 29885291, DOI 10.1016/j.abb.2018.06.001]. Magellan Longevity. https://magellanlongevity.com/study/s120.html
BibTeX
@misc{magellan_s120, title = {What are the various health benefits of carotenoids, and what is the current state of evidence regarding their efficacy?}, author = {{Magellan Longevity}}, year = {2026}, howpublished = {\url{https://magellanlongevity.com/study/s120.html}}, note = {Plain-English summary of PubMed PMID 29885291; DOI 10.1016/j.abb.2018.06.001; Arch Biochem Biophys 2018. Reviewed by Gabriel Radu, DO}, urldate = {2026-08-11} }
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How this summary was made. Every section above restates what the published abstract of PMID 29885291 reports — the question, the design, the numbers, the authors’ own conclusion and their stated limitations. We do not add claims the paper did not make, and we keep negative and no-effect findings in. Magellan’s evidence grades are set from research like this and never from affiliate commissions.

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Educational information, not medical advice. This is a plain-English summary of published research; it is not a treatment recommendation and nothing here is intended to diagnose, treat, cure, or prevent any disease. Individual studies can be wrong, and a single paper rarely settles a question. Talk to your physician before acting on any research, especially if you are pregnant, nursing, or taking medication.