Vegetable is well known to prevent chronic disease,however, the mechanism of its nutrients and non-nutrients still remains to be discovered.We design a feeding study which provides plant foods to subjects one by another and monitoring metabolomic changes up to 7 hours.The goal of this study is to establish a protocol for documenting metabolomics response to plant foods and try to characterize plant foods in terms of their anti-hypertension potentials with metabolomic profiling information.

Inclusion Criteria:

• Age :18-60 years
• Body Mass Index :18.5-30(kg/m2)
• Non-smoking,alcohol abusing,and other bad hobbies

Exclusion Criteria:

• With regular drug intake e.g. anti-hypertensive or antidiabetes drug or history of immune, hepatic and metabolic disease or other unsuitable disorders e.g. cancer.
• unwilling to stop regular food supplement e.g. vitamins, herb
• cannot cooperate with designed diet
• History of urinary tract infection or antibiotic use within the previous 3 month