Nutrition makes a lot of sense, when you consider just how much time the average person spends around food - you're generally reminded of nutrition three times a day.

It's a large aspect of health, money, and comfort (see: going to the toilet), and frankly there isn't very thorough consensus (it's been suggested that the food pyramid is biased by commercial interests of the time), and what's more, most people aren't cooking or paying for their own meals when they learn about it in school, so they don't remember it that well anyway.

Indeed, it makes sense to be interested in nutrition. What's funny is that most people commenting here on HN are out of their depths and talk about nutrition, supplements, bizarre shakes, fad diets, keto, calorie restriction or whatnot with the same pseudoscientific beliefs as other non-HN people discuss astrology ("but it really works!"). They "don't know that they don't know" and believe the most bizarre things. That's very relevant to the article and also to the OP's comment at the top of this subthread :)

PS: lest I sound too arrogant, nutrition is not my particular blind spot (I'm aware I don't know much about it), but I'm sure I have other blind spots I'm not aware of!

My wife is a dietitian with a PhD, and I can scarcely stand to read HN comments on nutrition articles. And I'm not the one with the degree!