The Romans had it figured out long ago . The basic formula is still accurate to this day . Marius figured that the average Roman soldier should , and could carry , the Roman equivalent of 50 lbs on a march , and still be able to fight . This in addition to his armor ( which was . chain tunic at the time of the Marius reforms ) Now if your overweight and out of shape , this means weapon , ammo , and water ……….leave the cheese burger at home .
