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Cutaneous Carotenoid Level Measured by Multiple Spatially Resolved Reflection Spectroscopy Sensors Correlates with Vegetable Intake and Is Increased by Continual Intake of Vegetable Juice

Authors :
Hiroki Hayashi
Ikuo Sato
Hiroyuki Suganuma
Source :
Diseases, Vol 9, Iss 1, p 4 (2020)
Publication Year :
2020
Publisher :
MDPI AG, 2020.

Abstract

Although vegetables are beneficial for human health, in many countries, the recommended vegetable intake is not reached. To assess vegetable intake, it is important to understand vegetable consumption. Therefore, we conducted a cross-sectional and intervention study of 26 healthy individuals (50% women; 37.0 ± 8.9 years) and estimated vegetable intake on the basis of the cutaneous carotenoid level (CCL) with a noninvasive skin carotenoid sensor, considering that vegetable juice intake can increase CCL. Participants consumed vegetable juice containing 350 g of vegetables daily for 4 weeks. Blood carotenoid levels and CCL were measured for 12 weeks. Cross-sectional analysis showed a significant positive correlation between CCL and vegetable intake (r = 0.489). Vegetable juice consumption significantly increased CCL and the blood levels of α-carotene, β-carotene, and lycopene (p < 0.05). The correlation coefficient between the blood level and CCL for lycopene was smaller (r = 0.001) compared to that between the blood level and CCL for α-carotene (r = 0.523) and β-carotene (r = 0.460), likely because of bioavailability differences. In conclusion, noninvasive skin carotenoid measurements are effective for determining vegetable intake, and vegetable juice significantly increases CCL.

Details

Language :
English
ISSN :
20799721
Volume :
9
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Diseases
Publication Type :
Academic Journal
Accession number :
edsdoj.7586463fcce04693b675c520bfdf8d6f
Document Type :
article
Full Text :
https://doi.org/10.3390/diseases9010004