The use of Borassus Palm (Borassus flabellifer), commonly known as palmyra palm, to support or treat dehydration is primarily justified by traditional practices rather than robust scientific evidence. In many parts of South and Southeast Asia, the sap from the Borassus Palm—sometimes called "neera" or "toddy"—is consumed as a natural, refreshing drink, especially in hot climates. Traditional systems of medicine and local customs consider it a hydrating beverage, valued for its pleasant taste and presumed ability to replenish fluids and electrolytes.

The sap is naturally sweet and contains water, simple sugars, and small amounts of minerals such as potassium, calcium, and magnesium, which can contribute to hydration. However, there is minimal scientific research directly investigating its efficacy in treating dehydration compared to established oral rehydration solutions. Most references to its hydrating properties are anecdotal or based on nutritional analysis rather than clinical trials.

In summary, while Borassus Palm sap is traditionally used to quench thirst and counteract the effects of heat, and it does contain hydrating components, there is insufficient scientific validation to support its use as a therapeutic intervention for dehydration. Its role is best understood as a traditional, culturally significant beverage rather than a medically proven treatment.