The constrained model doesn&#x27;t contradict cals in&#x2F;cals out. All it says that the calories out will be sublinear in the amount of exercise added.<p>Furthermore, the graph of energy expenditure over time (in section 10) directly agrees with what calories in&#x2F;calories out predicts. See, for example, how perfectly the &quot;very low calorie diet&quot; agrees with the exponential decay predicted by theory.<p><a href="https:&#x2F;&#x2F;www.chrisstucchio.com&#x2F;blog&#x2F;2011&#x2F;weight_stability.html" rel="nofollow">https:&#x2F;&#x2F;www.chrisstucchio.com&#x2F;blog&#x2F;2011&#x2F;weight_stability.htm...</a>