柚皮苷（Naringin）是西柚中主要的黄酮类，它令西柚有苦味。

柚皮苷可以促进动物骨骼生长，加强脂肪和乙醇的新陈代谢，抗氧化。

• 柚苷 Naringin 中草药化学图像数据库 (香港浸会大学中医药学院) （中文）（英文）

Naringin is a flavanone-7-O-glycoside between the flavanone Naringenin and the disaccharide neohesperidose. The flavonoids naringenin and hesperetin, which form the aglycones of naringin and hesperidin, occur naturally in citrus fruits, especially in grapefruit, where naringin is responsible for the fruit's bitter taste. In commercial grapefruit juice production, the enzyme naringinase can be used to remove the bitterness created by naringin. In humans the naringin is metabolized to the flavanone naringenin.