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I don't think you can really dismiss macro-nutrient allocation as a factor. The metabolic pathways for fats and carbohydrates are just way different. For some r

I don't think you can really dismiss macro-nutrient allocation as a factor. The metabolic pathways for fats and carbohydrates are just way different. For some reason people think that this stuff works like a gas tank, where all that matters is how much fuel you pour in, but the evidence clearly shows that what kind of fuel you pour in is incredibly important. If you think about how incredibly complicated things like nutrients and proteins are, and how insanely complicated the body is, it makes sense. We've evolved so that we can eat almost anything, but that doesn't mean that we should eat anything. The evidence seems to point towards carbohydrates being something that should be eaten when there's a large energy demand and otherwise should be kept low.

fearface 7y ago
Science says you're wrong: https://www.ncbi.nlm.nih.gov/pubmed/28765272 https://www.ncbi.nlm.nih.gov/pubmed/28765272 "risk for obesity is primarily determined by total calorie intake" The macro nutrients certainly matter in the details, but not so much in the overall picture. It does mostly work like a gas tank, and the energy content in good is literally measured in [kJ]. Fat has a lot of stored energy, why on the planet, do people believe the body is able to create and store energy out of thin air? And it exactly works the opposite way, the body will use the stored energy in the fat if there's not alternative.
- dang 7y ago
  > "Science says you're wrong" Please don't use dismissive internet tropes like that on HN. It's of course fine to cite a study, but no single study is "Science". https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html
claudiawerner 7y ago
It really is like a gas tank. Just like everything else in the universe, we are regulated by the laws of physics. You can't move (live) without expending energy, and all energy put in must be transformed or stored. It's thermodynamics.

fearface 7y ago

Science says you're wrong: https://www.ncbi.nlm.nih.gov/pubmed/28765272 https://www.ncbi.nlm.nih.gov/pubmed/28765272 "risk for obesity is primarily determined by total calorie intake" The macro nutrients certainly matter in the details, but not so much in the overall picture. It does mostly work like a gas tank, and the energy content in good is literally measured in [kJ]. Fat has a lot of stored energy, why on the planet, do people believe the body is able to create and store energy out of thin air? And it exactly works the opposite way, the body will use the stored energy in the fat if there's not alternative.

dang 7y ago
> "Science says you're wrong" Please don't use dismissive internet tropes like that on HN. It's of course fine to cite a study, but no single study is "Science". https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html

claudiawerner 7y ago

It really is like a gas tank. Just like everything else in the universe, we are regulated by the laws of physics. You can't move (live) without expending energy, and all energy put in must be transformed or stored. It's thermodynamics.