this post was submitted on 14 Jun 2023
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For years scientists have believed that when it comes to weight gain, all calories are created equal.

But an intriguing new study, published in the journal Nature Communications, suggests that’s not true. The body appears to react differently to calories ingested from high-fiber whole foods vs. ultra-processed junk foods.

The reason? Cheap processed foods are more quickly absorbed in your upper gastrointestinal tract, which means more calories for your body and fewer for your gut microbiome, which is located near the end of your digestive tract. But when we eat high-fiber foods, they aren’t absorbed as easily, so they make the full journey down your digestive tract to your large intestine, where the trillions of bacteria that make up your gut microbiome are waiting.

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[–] [email protected] 5 points 1 year ago

This is interesting to me, because my intuition would be that it doesn’t matter whether the calories are going into microbiota or fat, it’s still going to end up as weight in your body (gut bacteria still add mass).

They mentioned in the article that with high fiber diets there's more calories in the waste/scat. So you're absorbing less into fat or the gut.