Eucalyptus is an evergreen tree that's widely used for its medicinal properties. ... It has a gum-infused bark, long stems, and circular leaves that are hard to digest if eaten whole. However, eucalyptus leaves can be made into a tea that's safe for consumption.
Eucalyptus leaves are a great source of antioxidants, particularly flavonoids, which protect your body from oxidative stress and free radical damage.
The main flavonoids in eucalyptus include catechins, isorhamnetin, luteolin, kaempferol, phloretin, and quercetin. Diets rich in these compounds may protect against certain cancers, heart disease, and dementia
Some research has shown that eucalyptol relieves cold symptoms like cough frequency, nasal congestion, and headache by decreasing inflammation and mucus buildup