Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Astragalus (Astragalus membranaceus) is a traditional herb widely used in Chinese medicine, where it is believed to strengthen "qi" (vital energy) and support overall cardiovascular health. Historically, astragalus has been used in various multi-herb formulas to help manage symptoms associated with hypertension and promote circulatory balance. The traditional rationale is rooted in its supposed ability to tonify the spleen and boost energy, which indirectly is thought to benefit heart function and blood pressure regulation.

Scientifically, the evidence supporting astragalus for hypertension is limited and mainly based on animal studies or small, low-quality clinical trials. Some research suggests that astragalus extracts may exert mild vasodilatory effects, possibly through antioxidant and anti-inflammatory mechanisms, and may help modulate certain pathways involved in blood pressure regulation. However, most studies have methodological weaknesses, such as lack of control groups or small sample sizes, and results are not consistent or robust enough to draw definitive conclusions. Major medical guidelines do not currently recommend astragalus as a primary or adjunctive therapy for hypertension.

In summary, while astragalus is traditionally used to support cardiovascular and blood pressure health, scientific validation for its efficacy in treating hypertension is weak. Those considering astragalus for hypertension should consult their healthcare provider, and should not substitute it for established antihypertensive therapies.

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