&gt; Why does this plateau happen?<p>If you&#x27;re asking why weight loss slows down in a diet the answer should be pretty obvious. You continue to lower calories to keep yourself in a deficit, at a certain point your calories become very low and people have trouble with compliance.<p>Either that or the body enters a special high efficiency mode where it becomes a super efficient energy conservation machine all of a sudden?<p>The simplest solution is probably the correct one.