I have recently read "Natural Hormone Enhancement" by Rob Faigan; and have now been on the NEH diet (and exercise) for about a month - while still staying paleo. The NHE-diet is a "cyclical lowcarb diet". Generally Lowcarb , but with a "carbload" meal twice a week (last meal of the day). Starchy carbs are preferred rather than sugary carbs(because it enhances exercise performance) It is easy to eat lowcarb paleo ; starchy paleocarbs are a bit harder - sugary carbs are easy: fruits, dried and fresh. The basic idea is that diet influences hormones ; so it is possible to favourably manipulate your hormones, by eating appropriately. Similarly exercise influences hormones - in fact this is the most important effect of exerc ise: "You dont loose weight because of the (relatively few) calories you burn during exercise - but because of the hormonal changes the exercise causes- resulting in changed metabolism during hours and days after exercise " ! Another basic idea is that you can be either a "sugar/carbohydrate -burner" or a "fatburner" - the latter being healthier, and promoting fat loss ! One initial week of strict carbohydrate restriction is needed in order to switch to "fatburning" (standard modern diets makes you a sugarburner). After this initial week, the "carbloads" every third or fourth evening are too brief to turn you back to sugarburning. ... I cant tell if all Faigans "scientific" arguments are true ; but I gave it a try , and have had good results: fat loss, and most notably - much more energy (almost a bit scaring - feeling somewhat "speeded"). It feels much like when I started eating paleo - but with even more pronounced effects. Does anyone have experience with this or other "lowcarb diets" ? Or have any opinion on it ? Esben