Die with a "T"/Weight Implications
Calorie reduction is actually dependent on the current weight if the intent is to employ a diet that reduces maintenance input by 25%. And, calories and metabolism to maintain a specific weight also depend on the current weight, so as shown in the graph below, as current weight declines so must calories and metabolism. In summary this says the more you lose the less you can heat to maintain the new weight.
The simulation graph shows that it will actually take a bit longer than in the previous model with the reduction in input taken into account. As before, this is a far greater period than is probably desired, so how might exercise increase the metabolism and reduce the time it takes to lose the weight.
Systems Thinking World Discussions
Systems Thinking World Q&A * Gene Bellinger