8姜

姜

Zingiber officinale Rosc

姜（学名：Zingiber officinale Rosc.），姜科姜属多年生草本植物。
姜是一种常用烹饪辅料，分为生姜、干姜、炮姜三种。中医理论认为，
姜可以煎汤、榨汁，或作调味品，其中药性表现为：发散风寒、化痰止咳，
又能温中止呕、解毒等，常常用于外感风寒及胃寒呕逆等症的治疗。不过，
中医专家指出，吃姜养生要讲究根据不同病症、个人体质特点等，不可一概
而论。

The roots and stems of ginger have had roles in Chinese, Japanese,
and Indian medicine since the 1500s. The oil and resin of ginger is often
contained in digestive products, cough suppressants, anti-gas products, and
laxatives.

Research supports ginger for reducing the severity and duration of
nausea and vomiting due to pregnancy. Effects appear to be additive when
used with prochlorperazine (Compazine®). The optimal dose remains
unclear. Ginger's effects on other types of nausea and vomiting, such as
postoperative nausea, chemotherapy-induced nausea, or motion sickness,
remains unclear.
Ginger is taken by mouth, applied to the skin, and injected into the muscle for
a wide array of conditions, without clear scientific evidence of benefit.

The most frequent side effects from ginger use are upset stomach,
heartburn, gas, and bloating. Ginger may theoretically increase bleeding risk.