Figure 2: Mean serum concentration of the 4 target catechins versus time plots after ingestion of green tea tablets. Eight healthy volunteers ingested 3 tablets of decaffeinated green tea extract containing 4 major catechins. The amount of catechins in 3 tablets was equivalent to one regular size cup of green tea (EGC: 44.9 mg, EC: 16.7 mg, ECg: 11.1 mg, EGCg: 42.9 mg). Catechins: □, EGC; ■, EC; △, EGCG; ▲, ECG;♦GA.