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Comment by nradov | Hacker News Reader

The Haber–Bosch process also played a major role there. It was around 100 years ago that cheap nitrogen fertilizer manufactured from fossil fuels started to become widely available. That greatly reduced starvation, at least in countries with functional governments.

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This was then combined with the Green Revolution, where crops were modified to truly take advantage of abundant artificial fertilizer. Before that, too much nitrogen would make wheat (for example) grow so tall and top heavy it would fall over, reducing yield in a process called "lodging".

The fact that would amaze Franklin is that only about 1% of Americans are farmers.

Franklin would also be puzzled that there would be many people that are nutrient deficient despite calorie abundance.

It was actually common in Franklin's time for poor people with limited diets (mainly a single grain crop) to suffer from nutritional deficiencies despite getting adequate calories. Think of conditions like pellagra, goiter, anemia, etc. Of course they didn't fully understand the root causes.

The dietary problem in the US is overconsumption of macronutrients, particularly carbohydrates, not underconsumption of micronutrients, and certainly not underconsumption (of all nutrients) as could be seen in Franklin's time.

Franklin would be amazed at how little of household budgets could go to food now.

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