Summary
This narrative review provides a comprehensive overview of tannins in the human diet, covering their structural classification into hydrolysable and condensed tannins, their distribution across plant-based foods including legumes, cereals, fruits, and beverages, and the mechanisms by which they act as anti-nutrients. The paper synthesises evidence on food processing strategies — such as soaking, fermentation, autoclaving, and enzymatic treatment — that can mitigate tannin-mediated inhibition of nutrient absorption. It serves as a reference resource for researchers and food technologists seeking to balance the recognised bioactive benefits of tannins against their potential to reduce the nutritional value of plant-based diets.
UK applicability
The findings are broadly applicable to UK food and nutrition contexts, particularly given growing interest in plant-based diets and the consumption of legumes, whole grains, and polyphenol-rich foods; UK food processors and dietitians may draw on the processing strategies reviewed to optimise nutritional quality of plant-based products.
Key measures
Tannin classification and structure; dietary source distribution; anti-nutritional effects on mineral and protein bioavailability; reduction in tannin content (%) following specific processing interventions
Outcomes reported
The review examines the classification of tannins into hydrolysable and condensed forms, their occurrence across dietary sources, and the efficacy of various processing strategies in reducing their anti-nutritional properties. It likely reports on how processing methods such as soaking, fermentation, and heat treatment affect tannin content and bioavailability of associated nutrients.
Topic tags
Dig deeper with Pulse AI.
Pulse AI has read the whole catalogue. Ask about this record, its theme, or how the findings apply to UK farming and policy — every answer cites the underlying studies.