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Review
. 2019 Mar 6;24(5):917.
doi: 10.3390/molecules24050917.

Naturally Lignan-Rich Foods: A Dietary Tool for Health Promotion?

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Review

Naturally Lignan-Rich Foods: A Dietary Tool for Health Promotion?

Carmen Rodríguez-García et al. Molecules. .

Abstract

Dietary guidelines universally advise adherence to plant-based diets. Plant-based foods confer considerable health benefits, partly attributable to their abundant micronutrient (e.g., polyphenol) content. Interest in polyphenols is largely focused on the contribution of their antioxidant activity to the prevention of various disorders, including cardiovascular disease and cancer. Polyphenols are classified into groups, such as stilbenes, flavonoids, phenolic acids, lignans and others. Lignans, which possess a steroid-like chemical structure and are defined as phytoestrogens, are of particular interest to researchers. Traditionally, health benefits attributed to lignans have included a lowered risk of heart disease, menopausal symptoms, osteoporosis and breast cancer. However, the intake of naturally lignan-rich foods varies with the type of diet. Consequently, based on the latest humans' findings and gathered information on lignan-rich foods collected from Phenol Explorer database this review focuses on the potential health benefits attributable to the consumption of different diets containing naturally lignan-rich foods. Current evidence highlight the bioactive properties of lignans as human health-promoting molecules. Thus, dietary intake of lignan-rich foods could be a useful way to bolster the prevention of chronic illness, such as certain types of cancers and cardiovascular disease.

Keywords: antioxidants; chronic diseases; diet; health promotion; lignans.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Structural subgroups of lignans (Ar=Aryl).
Figure 2
Figure 2
Biosynthetic pathway of lignans. NGT (pinoresinol glucosyltransferase), PSS (piperitol/sesamin synthase), PLR (pinoresinol/lariciresinol reductase), LGT (lariciresinol glycosyltransferase), SGT (secoisolariciresinol glycosyltransferase), SID (matairesinol O-methyltransferase), MMT (matairesinol O-methyltransferase), Glc (Glucoside).
Figure 3
Figure 3
Chemical structure of enterodiol (A) and enterolactone (B).

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