GPT and metabolic dysfunction-associated steatotic liver disease: Interestingly, in a randomized double-blind placebo-controlled study including 17 NAFLD patients, patients treated with a green tea beverage containing high-density catechins (1080 mg/700 mL, 700 mL/day, 12 weeks) were detected with significantly decreased body fat content, liver to spleen ratio, serum ALT level, and urinary 8-isoprostane excretion compared to those treated green tea containing low-density catechins (200 mg/700 mL, 700 mL/day, 12 weeks) and placebo (0 mg/700 mL, 700 mL/day, 12 weeks) [150].