![]() ![]() ![]() Finally postprandial plasma lutein responses were compared in minipigs after the two test meals. The obtained mixed micelles were delivered to Caco- 2 cells to evaluate lutein uptake. ![]() Lutein transfer to gastric-like lipid droplets or artificial mixed micelles was assessed when lutein was added to test meals either as a pure molecule ((all- E)-lutein) or in canned spinach ((Z) + (all- E)-lutein). This study thus aims to decipher the digestion-absorption process of lutein in the presence or not of a food matrix. Margier, Marielle Buffière, Caroline Goupy, Pascale Remond, Didier Halimi, Charlotte Caris-Veyrat, Catherine Borel, Patrick Reboul, Emmanuelleįood matrix is generally believed to alter carotenoid bioavailability, but its effect on xanthophylls is usually limited. Opposite Effects of the Spinach Food Matrix on Lutein Bioaccessibility and Intestinal Uptake Lead to Unchanged Bioavailability Compared to Pure Lutein. This finding may have implications for dietary recommendations that may decrease the risk of certain diseases, e.g., ARMD. The lutein bioavailability from lutein, lutein ester supplements, and spinach did not differ. In conclusion, the lutein bioavailability from egg is higher than that from other sources such as lutein, lutein ester supplements, and spinach. There was no significant difference in TRL response. Results from repeated-measures 1-way ANOVA showed that the baseline and dose-adjusted lutein response in serum was significantly higher after egg consumption than after lutein, lutein ester, and spinach consumption on d 10. Subjects completed all 4 treatments of the study in random order. Triacylglycerol-rich lipoproteins (TRL) were separated from postprandial blood samples (0-24 h) after the first lutein dose and analyzed for lutein concentration. Serum samples were collected from fasting subjects on d -14, 1 (baseline), 2, 3, and 10 and analyzed for changes in lutein concentration. ![]() All lutein doses provided 6 mg lutein except for the lutein ester dose, which provided 5.5 mg lutein equivalents. After a 2-wk washout period during which they consumed a low-carotenoid diet, the men were administered 1 of 4 lutein doses ( lutein supplement, lutein ester supplement, spinach, and lutein-enriched egg) for 9 d. Healthy men (n = 10) participated in an intervention study with a crossover design. At present, data regarding bioavailability of lutein from various sources are insufficient. Lutein may be protective against diseases such as age-related macular degeneration (ARMD). Lutein bioavailability is higher from lutein-enriched eggs than from supplements and spinach in men.Ĭhung, Hae-Yun Rasmussen, Helen M Johnson, Elizabeth J ![]()
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