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That would depend upon how much water and food the person has with him/her. If it is in the middle of the summer in a hot desert you will need much more water than in a cool desert or in the winter. Generally, it is recommended that you have a minimum of one gallon per person per day. Even more would be safer. However, that is a lot of weight. Without sufficient water in a hot desert a person would start to experience severe health issues within a day and would expire within 2 or 3 days.

Food is generally not a big issue as a person can go for weeks without food. However, the person would have little energy to move.

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11y ago

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