there are suspicions where microwaved food would have nutrition lost. The most accepted theory is that electromagnetic field created by microwave may polarize metallic ions in the reheated food hence destroys natural nutrients or reduces absorption efficiency of minerals. Some even link high obesity rate in the State to using microwave reheat on fastfood.
If you are on a boat with capacity of 4 ppl, don't try to save 8 in the water, otherwise you may lose all including yourself. learn to say no