Humans cannot survive for extended periods without food, relying solely on water. While hydration is essential for survival, food provides the necessary nutrients and energy our bodies need to function properly. Without food, the body starts to use stored energy sources, primarily fat and muscle, leading to severe health consequences.
Initially, one might survive by drinking only water for a week or two, depending on individual health and reserves. However, essential vitamins, minerals, and proteins are vital for bodily functions, including the immune system, muscle maintenance, and cellular repair. Prolonged fasting without food can lead to serious health issues such as muscle loss, weakened immunity, organ failure, and eventually death.
In summary, while it is possible to go for some time only drinking water, it is not sustainable for long-term health. A balanced diet is necessary for maintaining overall health and well-being.