Capers

Capers deliver strong, tangy flavor and aroma with very few calories, allowing them to add savory depth to dishes without substantially increasing energy density.

Polyphenols in capers (e.g., quercetin) have demonstrated anti-inflammatory actions in cell and animal models and limited human data, suggesting capers may contribute to dietary anti-inflammatory patterns.

Capers are relatively high in flavonoids such as quercetin and rutin and other polyphenols, which scavenge free radicals and contribute to antioxidant capacity in vitro and in small clinical or dietary studies.

Flavonoids found in capers (notably rutin and quercetin) are associated with improved endothelial function and capillary integrity in clinical and experimental research, suggesting potential benefit for microvascular health.

Capers provide modest amounts of dietary fiber per serving, which can support bowel regularity and provide substrate for colonic microbiota when included as part of a varied diet.

Capers contribute vitamin K, a nutrient important for normal blood clotting and for bone matrix protein activation; inclusion can help meet dietary vitamin K needs in the context of a varied diet.

Glucosinolate-derived compounds and certain isothiocyanates present in capers have shown antimicrobial activity in laboratory studies, indicating potential to influence microbial growth in foods or the gut, though clinical relevance is limited.

Flavonoids such as quercetin have been studied for effects on carbohydrate metabolism and insulin sensitivity; evidence specific to caper consumption is limited but suggests a possible modest benefit when included in a balanced diet.