Table 2.

Recovery of protocatechuic acid and metabolites in biological samples in 16 healthy adults after consumption of 150 g of chicory

Compounds	Blood circulation (% of the ingested dose)	Urine (% of the ingested dose)	Feces (% of the ingested dose)
PCA‐F	15.60% ± 4.21%	5.02% ± 3.24%	3.25% ± 1.36%
PCA‐G	4.96% ± 1.19%	5.65% ± 2.35%	7.77% ± 3.21%
PCA‐S	3.23% ± 0.81%	1.49% ± 0.85%	1.77% ± 0.90%
Total	23.79% ± 5.56%	12.17% ± 5.72%	12.79% ± 5.29%

Values are the means ± SD, n = 16.

Abbreviations: F, free; G, glucuronide; PCA, protocatechuic acid; S, sulfate.