not enough intervention materials can be provided

Dysbiosis of gut microbiota has been reported to be involved in the development and progression of hypertension in both humans and animal models. Probiotics have been reported to have ameliorative effects in murine models. However, whether probiotics could help alleviate hypertension in adults remain obscure.

Probiotics are live microorganisms that have been associated with multiple health benefits. However, its protective role in adults has long been controversial. This study aims to examine the effect of 12-week probiotics supplementation on the prevention of hypertension in Chinese adults. By understanding the mechanisms by which probiotics exert this beneficial effects, we can better control the rising prevalence of hypertension, which is a major risk factor for cardiovascular diseases.

Inclusion Criteria:

• Eligible subjects include men and women 18 to 75 years of age with pre-hypertension who has a systemic blood between 120 and 139 mmHg and/ or a diastolic blood pressure between 80 and 80 mmHg;
• Absence of any diet, dietary supplement and medications that might interfere with blood pressure and gut microbiota, especially antibiotics and probiotics.

Exclusion Criteria:

• Any other systemic, metabolic and cardiovascular or cerebrovascular diseases;
• Type 1 diabetes, type 2 diabetes treated with insulin or other medications;
• Acute illness or current evidence of acute or chronic inflammatory or infective diseases;
• Participation in any diet or lifestyle program more than 2 times per week in the latest 3 months prior to recruitment;
• Mental illness rendering them unable to understand the nature, scope, and possible consequences of the study.

Participants, investigators and care providers at the scene are all blinded to the allocation of treatment group. Data collected will be analyzed by another investigator who is blinded to the study design.