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A European carotenoid database to assess carotenoid intakes and its use in a five-country comparative study
TLDR
Within Europe there are differences in the specific intake of some carotenoids which are related to different foods consumed by people in different countries, and comparing the data with that from specific European country studies suggests that the FFQ and carotENoid database can be used for comparative dietary intake studies within Europe.
Serum concentrations of carotenoids and vitamins A, E, and C in control subjects from five European countries.
TLDR
Blood concentrations of carotenoids, tocopherols, ascorbic acid and retinol in well-defined groups of healthy, non-smokers, aged 25-45 years, are described to suggest that lutein (and zeaxanthin), beta-cryptoxanthin, total xanthophylls and gamma-tocopherol may be important markers related to the healthy or protective effects of the Mediterranean-like diet.
Carotenoid composition in raw and cooked Spanish vegetables
An HPLC study of 18 of the fresh vegetables (raw and coolied) most frequently consumed in Spain was done to determine their carotenoid composition. The results are grouped according to the color of
Reference values for retinol, tocopherol, and main carotenoids in serum of control and insulin-dependent diabetic Spanish subjects.
TLDR
Control subjects and patients with insulin-dependent diabetes mellitus showed ordinary concentrations of retinol, comparatively low beta-carotene and high beta-cryptoxanthin concentrations, and a relatively high alpha-tocopherol/ cholesterol ratio.
Reproducibility and validity of a food frequency questionnaire among pregnant women in a Mediterranean area
TLDR
This study supports that the FFQ has a good reproducibility for nutrient and food intake, and can provide a valid estimate of several important nutrients during pregnancy.
Major fruit and vegetable contributors to the main serum carotenoids in the Spanish diet.
TLDR
In the authors' population, a small number of fruits and vegetables can provide significant information on carotenoid intake (both annually and seasonally) to be used in the design of questionnaires for epidemiological studies, minimizing misclassification and errors.
Effect of orange juice intake on vitamin C concentrations and biomarkers of antioxidant status in humans.
TLDR
Drinking orange juice (500 mL/d) increases plasma concentrations of vitamin C and reduces concentrations of 8-epi-PGF(2 alpha) in humans and was significantly more pronounced in smokers.
A European multicentre, placebo-controlled supplementation study with alpha-tocopherol, carotene-rich palm oil, lutein or lycopene: analysis of serum responses.
TLDR
Dose-time responses, isomer distribution, subject variability and side effects during supplementation with the major dietary carotenoids in healthy subjects are described.
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