I was reading through the latest Paleo diet study earlier. In just ten days, the Paleo diet lowered insulin resistance and improved insulin sensitivity to normal levels. This is remarkable, but what I find most interesting is the amount of carbohydrates that were consumed.
Subjects in the Paleo diet consumed an average of 249 grams of carbohydrate per day. Yet in spite of this "high" carbohydrate intake, they were able to normalize insulin function. According to the low-carb gurus, this shouldn't be possible.
I still am baffled why some low-carb proponents suggest that low-carb is the only way to lower insulin levels. Clearly, based on this study it is not. You need to look at the type of carbohydrate being consumed. Low-carb is more of a sledgehammer approach – by removing almost all carbs, you are likely to remove any bad carbs.
The Paleo Diet blog also picks up on this recently:
"So, for instance in Kitava they eat a lot of carbohydrates and still have no obesity, so it seems as if some bioactive substances of neolithic foods are responsible for hormonal disruption rather than merely carbohydrate content."
There's more to good eating than just low-carb.