By Dov Michaeli MD, Ph.DEver wondered if loss of weight causes a reduction in the number of your fat cells? Wouldn’t it be wonderful if that was true? You go on a diet, you lose weight and a bunch of cells, and you’d never gain weight again. Except it ain’t true, as anybody who went on a diet knows; unless you stick with your diet forever you will gain back the weight you had lost. Why is that?Your fat cell allowanceIn theory,there are two ways you can increase your body fat: you can increase the number of fat cells in the body, and you can store more fat in each cell. The second way, increase of the fat content per cell, has been amply documented; the reason we have so much evidence for that mode of weight gain is that it is quite easy to document. All that needs to be d...