Do you know the oilseeds you've been avoiding all your life? Scientists reveal that some nuts, such as pistachios, actually have fewer calories than previously thought.
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Not all calories from nuts are absorbed by the human body.
In some of them, the body receives a "free pass".
This is what a new study by the American Agricultural Research Service reveals.
It analyzed how many calories of almonds, walnuts and pistachios are actually used by the human body.
When food is ingested, it is broken down into nutrients.
And your calories are burned for energy.
However, just because nutrients are present does not mean that the body will utilize them promptly.
This is the concept of “bioavailability”.
For example, 30 g of pistachios have 161.9 Kcal.
But only 153.8 calories are bioavailable.
It may not sound like much, but a 5% calorie reduction is quite significant on a daily basis.
Another example is even more impressive.
Thirty grams of Chilean nuts have 146 calories.
But our body can only absorb 39 calories (21%).
Many factors may influence this bioavailability.
With the nut category, this includes how they are processed.
And even how well they are chewed.
Raw, roasted and roasted almonds have 25%, 19% and 17% of their bioavailable calories, respectively.
The discovery shows how counting calories is not as simple as it sounds.
In the face of uncertainty, we often "kick" - and err grossly.