Water plays an essential role in several basic functions of the body, including digestion, temperature regulation, nutrient transport and waste removal. The body continuously loses fluids through processes such as breathing, sweating and urination, making regular fluid intake important for maintaining hydration. In some cases, early signs of inadequate fluid intake may be easy to overlook.

Dubai and Delhi-based culinary nutrition and holistic wellness coach Eshanka Wahi, founder of Eat Clean With Eshanka, has shared several signs that may indicate a person is not drinking enough water. While these symptoms can have several possible causes, recognising changes in thirst, urine colour and digestion can help people pay closer attention to their daily fluid intake.

Frequent thirst or a persistently dry mouth can be one indication that the body needs more fluids. Rather than waiting until intense thirst develops, maintaining regular fluid intake throughout the day can help support hydration. However, persistent or excessive thirst can also be associated with certain health conditions and should not automatically be attributed to inadequate water consumption.

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Urine colour can also provide a general indication of hydration status. Dark yellow or amber-coloured urine may occur when the urine is more concentrated, while pale-yellow urine is commonly associated with adequate hydration. However, urine colour can also be affected by foods, supplements and medicines, so a change in colour does not necessarily mean a person is dehydrated.

Other possible signs include dry or chapped lips and a feeling of dry skin. Dehydration may also contribute to headaches in some people, particularly when fluid losses occur through exercise, heat or prolonged outdoor activity. The severity and cause of headaches can vary considerably, so recurring or severe headaches should not simply be assumed to result from insufficient water intake.

Constipation is another issue that may be linked to inadequate fluid intake. When the body is short of fluids, the digestive system can absorb more water from waste, potentially making stools harder and more difficult to pass. Adequate fluids, along with sufficient dietary fibre and regular physical activity, can support healthy bowel function. Anyone experiencing persistent symptoms or significant changes in thirst, urination, digestion or headaches should consult a qualified healthcare professional rather than relying solely on increased water intake.

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