USDA diet advice through the years

Illustrating Diet Advice is Hard. Here’s how the USDA Has Tried To Do It.

Maria Godoy for NPR’s The Salt, on the 1992 Food Pyramid:

Carbs were the base of this pyramid, sending the message to eat all you want. And Americans did, gobbling up refined grains and processed snacks like SnackWell cookies — that staple of the low-fat craze — in their quest to avoid the dreaded dietary fat.

We know now that “carbohydrates worsen glucose and insulin — they have negative effects on blood cholesterol levels,” as Dariush Mozaffarian, dean of the Friedman School of Nutrition Science and Policy at Tufts University, told us back in 2014. In other words, he told us, replacing saturated fats with refined carbs “has not been useful advice.”

Note that the recommendation of milk and dairy (and separately, butter!) is included in the USDA’s 1943 “The Basic 7” food guide, and in every food guide since. With allergies to milk and dairy, what’s the best way to replace those recommended nutrients? Is fortified soy milk (or other ‘milks’) adequate?

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