After the decades of low-cal dieting that i did, it's psychologically VERY hard to increase the amount i eat. When i'm eating a ketogenic diet, making progress, and experiencing the lack of hunger i do, it's VERY tempting to take the energy intake lower. This, however, is a big mistake.
Whether it's because i have a "weak" thyroid to begin with or merely normal response to under-feeding, going too low in energy-intake quickly puts me in "conservation mode." Lowering intake further -- no matter what the CICO-promoters think -- also lowers fat-burning by the body. (This SHOULD be good news for some of the obese bloggers we know, but they're so invested in their paradigm they're not even willing to trade their egos for improved health.)
My husband derived determination and inspiration from the LC cruise seminars, and when we got home last month we started applying some new techniques to our diet-and-lifestyle practices. We procured a blood-ketone meter and found that our ordinary LC diets didn't get us to the range recommended by Phinney and Volek. Using recipes from the "Fat Fast Cookbook" (adding to our regular regimen, not doing A fat-fast), we managed to raise our fat intake from sixty-something to eighty-something percent of energy, and this has done the trick. We're BOTH losing.
Additionally, i find that by eating to appetite, i'm not taking in enough food to convince my body it can afford to "waste" fat to fuel me adequately. Upon the 1200-1400 kcal/day intake, WHICH SATISFIES MY APPETITE AMPLY, my body prefers to being in starvation mode. When i ADD TO my desired intake by drinking bulletproof-recipe coffee in the morning and consuming a very high-fat dessert, i DO lose. At a moderate-protein, VLC, VHF level of eating, the body is willing to burn body-fat generously at 2000 kcal -- for me, this is astonishing.
Not only am i writing this as a progress report for a pair of overweight middle-agers, but as a refutation of the confusing information provided to mature women by young male paleos on sites like facebook. The LAST thing new female low-carbers need is input from half-informed individuals about how little an obesity-resistant representative of an entirely different demographic has to do to achieve success!