Psidium guajava L.

The guava tree and its fruit has a lot of medicinal use. Guava is scientifically known as Psidium guajava L. It belongs to the Myrtaceae family.

It is cultivated in tropical countries. In the Philippines, it grows almost anywhere. In Indonesia, the ripe fruits which turns red inside are mostly found in Java Island and they are so sweet.

I became interested in this fruit when my two sons had dengue. The Vitamin C content of 160 g of a red guava fruit is almost 377 mg (Nutrient data source: US Department of Agriculture National Nutrient Database from This much of Vitamin C can help increase the immune system.

The fruit is also rich in phosphorus and calcium. Some varieties are rich in beta-carotene.

The leaves are boiled and the water is used to cleanse wounds and also used to apply on inflamed areas of the skin. The leaves has a good antiseptic  and disinfectant property. In fact, the water can also be used to gargle to relieve toothaches and cleanse gum sores.


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