Reply to Economist article: Death of the Calorie

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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]It IS calories in calories out. It’s just that some people seem to have a harder time controlling calories in [/quote]

And they don’t understand that just because Larla’s calories out = x doesn’t mean Larly’s calories out might = y despite a similar lifestyle.[/quote]

This really captures the stupidity of CICO.  Every body is different, and responds differently to a host of factors - including diet.  There is no one size fits all.[/quote]
+1
The problem with most discussions claiming "it's just CICO" is that they assume that individual people have identical metabolic processing. A "calorie" is the amount of energy that is theoretically available for your body to absorb. How much is actually absorbed depends on many physical, chemical, and metabolic factors related to both the person and food consumed. The amount of energy a person expends as part of their base metabolic rate and as part of exercising also varies. It's very aggravating to listen to people who are insistent that their exact meal plan and exercise routine will work for someone else "because CICO!" when those of us on the BTDT side of things know it doesn't work for them personally.

The other annoying thing is that people love to toss various scientific studies or personal anecdotes around as proof of various claims. But really when you examine a lot of studies, they have confounding variables that combine both calorie restriction and some other change. Until there are very large population studies that also account for body composition, microbiomes, genetics, hormonal variations (daily & over time), in addition to food types consumed and exercise, we won't have the information to provide individuals with personalized guidance around how to maintain a healthy weight.[/quote]

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