I work for a neurology office. Today, the drug rep that came and brought lunch also brought another neurologist from another office that was talking about the drug they were providing which happens to be for memory loss. The visiting doctor was talking about the entire program that he puts his memory patients on, including vitamin regimens and diet suggestions that he makes. He said the low-carb diet is the ONLY one that he puts his patients on after seeing a drastic improvement in cognitive function and memory. He said he found the best improvement in patients taking in less than 30 grams of carbs, but most patients had a hard time with that (duh!! it's hard!!) so he said less than 50 was ALMOST as good. So YAY for us having better cognitive function because of our low carb lifestyles!