No, that’s not a substantial amount you should obsess over, but know this: Your body doesn’t absorb every calorie from the food you eat (some just pass through you undigested), particularly if that food contains fiber and/or protein.
Does this mean that eating pistachios will burn fat? Of course not. But it lends evidence to the concept that the amount of calories you think you’re eating may not actually be what you’re eating.
Other foods have followed suit with the pistachio study: apples, carrots, sweet potatoes, and beef, are some examples. Scientists are still sorting out exactly what role protein and fiber play in non-absorbable calories.
What does this all mean for you?
1. Don’t believe the hype about certain foods possessing “fat-melting” properties.
2. This is just another reason to add more fiber- and protein-rich foods to your diet.
Try to include meat or seafood, vegetables and fruit, as well as complex carbohydrates at each meal. Though this won’t turn you into a metabolic machine, it will fuel your body and help you consume fewer calories from those foods you eat.
And it’s no coincidence that those exact same foods help to fuel muscle growth, fight disease, and keep you fuller for longer so you eat fewer calories over the course of a day. Bonus!