<p>Well yes. If you go below a certain level your metabolism will take a hit and you probably won’t lose too much fat. Take me for example. I am 185 or so. 10x is 1850. I have lost weight (unintentionally) on ~2500-3000 without any physical activity. 14-16x is what I, and quite a few other coaches have noticed to be the limit where lean tissue loss can be avoided. If you are losing more than 2 lbs/week, you are risking that <em>unless you are humongous to start with</em>, like corpulent fat.</p>
<p>Wait, did you mean bw*10 is what you should consume when not on a diet? That is nuts, you’d rot away very quickly.</p>