A few studies suggest that Ayurvedic preparations may reduce pain and increase function in people with osteoarthritis and help manage symptoms in people with type 2 diabetes, but most of these trials are small or not well-designed. There is little scientific evidence on Ayurveda's value for other health issues.

Drawbacks of Traditional Ayurveda Another concern with traditional Ayurvedic medicine is that some remedies may contain heavy metals such as lead, arsenic, and mercury. While these metals are used in small doses to treat certain conditions, excessive use can lead to toxicity and have harmful effects on the body.

While Ayurveda can have positive effects when used as a complementary therapy in combination with standard, conventional medical care, it should not replace standard, conventional medical care, especially when treating serious conditions.

Ayurveda believes that the entire universe is composed of five elements: Vayu (Air), Jala (Water), Aakash (Space or ether), Prithvi (Earth) and Teja (Fire). These five elements (referred to as Pancha Mahabhoota in Ayurveda) are believed to form the three basic humors of human body in varying combinations.