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Intake estimation of phytochemicals in a French well-balanced diet

Abstract : Phytochemicals contribute to the health benefits of plant-rich diets, notably through their antioxidant and anti-inflammatory effects. However, recommended daily amounts of the main dietary phytochemicals remain undetermined. We aimed to estimate the amounts of phytochemicals in a well-balanced diet. A modelled diet was created, containing dietary reference intakes for adults in France. Two one-week menus (summer and winter) were devised to reflect typical intakes of plant-based foods. Existing databases were used to estimate daily phytochemical content for seven phytochemical families: phenolic acids, flavonoids (except anthocyanins), anthocyanins, tannins, organosulfur compounds, carotenoids, and caffeine. The summer and winter menus provided 1607 and 1441 mg/day, respectively, of total polyphenols (phenolic acids, flavonoids, anthocyanins, and tannins), the difference being driven by reduced anthocyanin intake in winter. Phenolic acids, flavonoids (including anthocyanins), and tannins accounted for approximately 50%, 25%, and 25% of total polyphenols, respectively. Dietary carotenoid and organosulfur compound content was estimated to be approximately 17 and 70 mg/day, respectively, in both seasons. Finally, both menus provided approximately 110 mg/day of caffeine, exclusively from tea and coffee. Our work supports ongoing efforts to define phytochemical insufficiency states that may occur in individuals with unbalanced diets and related disease risk factors.
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Contributor : Isabelle Perez Connect in order to contact the contributor
Submitted on : Thursday, December 9, 2021 - 2:37:58 PM
Last modification on : Friday, May 20, 2022 - 9:04:22 AM

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Marie-Josephe Amiot, Latge Christian, Laurence Plumey, Sylvie Raynal. Intake estimation of phytochemicals in a French well-balanced diet. Nutrients, MDPI, 2021, 13 (10), pp.3628. ⟨10.3390/nu13103628⟩. ⟨hal-03472689⟩

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