Ashley > Incidentally, does anyone have an idea what the starvation point (ie minimum number of calories) would for an active 22yo male? 

This is of course much more complicated than the daily caloric "needs."  Remember that the average human can go at least a month with ZERO calories -- just water -- before true hunger and starvation starts.  So you could probably last a very, very long time on 1500 cals a day, depending upon your activity level.
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