Go ahead, get a little nutty! Despite being high in calories (160 to 170 calories per ounce), nuts can be very slimming. Studies show that nut lovers are thinner than those who avoid or rarely eat nuts. Why? Nuts keep you fuller longer; their calories aren't fully absorbed by the body, and nuts provide a modest boost to your metabolism, according to research.
In-shell pistachios provide a unique advantage for waistline-watchers. A preliminary study from Eastern Illinois University suggests that people who snacked on in-shell pistachios consumed 41 percent fewer calories than those who ate shelled pistachios. The authors say the empty shells might be a helpful visual cue about how much has been eaten, thereby encouraging you to eat less.
