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Comment by makeitdouble | Hacker News Reader

You lost 150lbs and might be in a somewhat decent health, but will it be true for that person over the internet that might have nothing in common with you ?

The crux of these discussion on diet is that there is no universally reproductible method (CICO in isolation is just a principle and not a method) and starving he body will have different consequences for different people. Advocating any practice as “the only thing that matters” is a recipe for disaster.

Imagine if the actual solution for that person is to change jobs, or that starvation lead them to worse health issues than where they are now, stuffing CICO down their throat would just be cruel.

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I'd agree with the GP that for weight loss CICO is the only thing that matters. However, if you can find some method (restricting carbs, restricting fats, only eating during set times, etc) that naturally results in a calorie deficit and you can stick with then go far it. Just because you don't think of it as CICO doesn't mean it isn't the underlying cause of your weight loss.

If you define CICO as losing calorie some way or another, it really just means “weight reduction”. Telling someone 「“weight reduction” matters for dieting」 doesn’t feel very meaningful to me.

If someone with low financial literacy asked your advice on how to start a rainy day fund would you tell them to cut expenses and find ways to improve their income or would you just say "start saving". What's the difference between money in, money out and "start saving"?

In both the finance and nutrition examples you have two variables that you can adjust. In both cases they are not independent and changing one may affect the other or may affect other parts of your life that make it unsustainable. Eat less and do more is the correct advice for most people who want to lose weight.

I find that to be unlikely, frankly. There are a lot of strategies to achieve a better CICO ratio, and I think those have incredibly varied success rates for different people, but when it comes right down to it if you don't find a way to change that ratio then you will never succeed. In my experience, the most expedient way to do it is to count calories.

I also don't think this is anywhere near as "unhealthy" as people want to believe it is. I think that largely arises from our discomfort with being hungry, and our general intuition about which foods are "healthy" and which aren't. However, consider the case of nutrition professor Mark Haub, who ate nothing but garbage convenience store snacks for 10 weeks at a caloric deficit and not only lost 27lbs, but had all of his health metrics improve: http://www.cnn.com/2010/HEALTH/11/08/twinkie.diet.professor/...

Reducing overall stress is a pretty well known way to improve health, and it often leads to better diets/lower fat ratio one way or another. I don’t think it’s hard to find stories of people losing weight after getting out of shitty jobs/damaging relationships.

Focusing on numbers (calorie counting etc.) can help people who like numbers and need to focus on something. But these people don’t need any push to go find numbers to follow. The same way I fundamentally like sport, I needed nobody’s advice to go do hours of sports when I felt my body was getting rusty.

not surprising to me. fasting has many health benefits. I've experienced it for myself.

If interested, check out "The science of fasting" documentary.

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