ArticleJournal of human nutrition and dietetics : the official journal of the British Dietetic Association2025
Associations Between Dietary Carotenoid Intake and Plasma Carotenoid Concentrations and Skin Yellowness, a Validation Study.
Article in Journal of human nutrition and dietetics : the official journal of the British Dietetic Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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.
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.
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Who cites it
2 citing papers in PubMed.
- Carotenoids in the Context of the Mediterranean Dietary Pattern: From Food Matrix and Bioavailability to Biomarkers and Human Health.Antioxidants (Basel, Switzerland) · 2026Review
- Examining Demographic Variables Associated with Fruit and Vegetable Intake and Skin Yellowness.Nutrients · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
backgroundCarotenoids are pigments abundant in fruits and vegetables and can be measured in plasma and skin. This study aimed to evaluate associations between carotenoid intake, assessed by self-reported usual diet against plasma carotenoid and skin yellowness concentrations in Australian adults (n = 50, aged 39.3 ± 15.4 years, 68% female).
methodsDietary carotenoid intakes were quantified using the Australian Eating Survey (AES) food frequency questionnaire (total, α- and β-carotene, lycopene, β-cryptoxanthin, and lutein/zeaxanthin). Plasma concentrations of these carotenoids were measured using high-performance liquid chromatography, while skin yellowness was measured using skin reflectance spectroscopy as a proxy for skin carotenoids. Associations between AES carotenoids, plasma carotenoids and total skin yellowness were analysed using linear regressions.
resultsAES-derived carotenoid intakes were positively associated with skin yellowness for all dietary carotenoids (β range 0.25-0.46, p < 0.05) and total dietary carotenoids (β = 0.35 [95% CI 0.07, 0.63], p < 0.05), except lycopene. Similarly, each individual plasma carotenoid was significantly positively associated with their respective individual dietary carotenoids (β range 0.42-0.53, p < 0.05) and total dietary carotenoids (β = 0.38 [95% CI 0.04, 0.73], p < 0.05), except for lycopene. Significant positive associations were identified between skin yellowness and total (β = 0.36 [0.20, 0.52], p < 0.001) and individual plasma carotenoids (β range 0.30-0.37, p < 0.01), excluding α-carotene and lycopene.
conclusionDietary carotenoid intakes were significantly associated with plasma carotenoid concentrations and skin yellowness values. Results support use of all three methods for assessment of carotenoid intake, with the exception of lycopene. Future studies should consider cost, accessibility of assessment methods and participant burden when selecting dietary assessment methods.
trial registrationThe original study was registered with Australian New Zealand Clinical Trials Registry (ANZCTR-12619001415190).
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