That is absolutely not true to the point that you’re describing a serious disease as health. A healthy body will generally desire only the amount of calories it has been using or slightly more. A healthy body may use excess calories for muscle building or other constructive activities. But if you are defecating digestible calories, you need to speak to a physician (though you’re only likely to learn about this via a stool analysis). This is famously one of the more dangerous symptoms of advanced crohns disease, but it could be an issue of any number of disorders of the digestive system.
The human body has varied efficiencies of calorie absorption, some people have less or more efficient bodies. If you can’t gain weight when honest calorie counting and genuinely increasing your intake, maybe you just have a weirdly variable metabolism, but you may find difficulty doing things that require extra calories like recovering from injury or illness or building muscle.
That is absolutely not true to the point that you’re describing a serious disease as health. A healthy body will generally desire only the amount of calories it has been using or slightly more. A healthy body may use excess calories for muscle building or other constructive activities. But if you are defecating digestible calories, you need to speak to a physician (though you’re only likely to learn about this via a stool analysis). This is famously one of the more dangerous symptoms of advanced crohns disease, but it could be an issue of any number of disorders of the digestive system.
The human body has varied efficiencies of calorie absorption, some people have less or more efficient bodies. If you can’t gain weight when honest calorie counting and genuinely increasing your intake, maybe you just have a weirdly variable metabolism, but you may find difficulty doing things that require extra calories like recovering from injury or illness or building muscle.