Thanks all - we can be the forgetful club - except we won't remember who the members are, that we are members ourselves, or even that there is a club at all! Kes, thanks for the suggestion about MCT oil, spot on, though I think I'd use coconut oil myself which is apparently similarly beneficial. In my case I think the forgetfulness is more to do with other stressors but I was thinking of adding coconut oil to the diet and this couldn't hurt as an extra incentive.