> If you buy old-school vegetables you get old-school vitamins and minerals. Buy direct, buy fresh, buy local.

You're going to have some problems during winter.

This is why canning and food preservation was so important

Eat stuff that grows in winter? Hardy vegetables have their season now in many latitudes, it's not that tricky. If you live in the tundra I am sorry for you and please move to Costa Rica if your skin can tolerate it.

> it's not that tricky

Are you serious? I live at 39.75 latitude in the USA with strong winters with snow and ice. There’s no way you’re growing vegetables in winter here without a greenhouse. You have no idea what you’re talking about. Do you live in California?

This is true of the Midwest, and anything in the Northeast north of say, Wilmington Delaware or even Baltimore depending on the year.

I live in a place conducive to human life and not a barren wasteland, yes. Y'all should move here! It's Lisbon by the way.

You think everyone who lives anywhere with snow in the winter should move to Portugal?

No, anywhere in a moderate climate will do.

Only for the local part, not as it pertains to the vitamins. Notwithstanding, year-round most of the produce in large grocery stores isn't local and will never be.

Actually, the stuff in the store has usually been in warehouses for long periods of time. During that time, they lose nutrients.

Some, probably vitamin C. But that can be recouped with produce that always has lots anyway, e.g. tomatoes.

Not just vitamin C. B vitamins can be reduced by up to 70%. There is degradation with many other nutrients as well.

"Up to" doesn't paint a realistic picture, but it's a moot point. Nutritional deficits in the West are a result of poor consumption choices, not the lack of nutrition in produce.

That's only part of the issue. Soil composition is another part. Those "old-school" vegetables also need to be grown in old-school soil, using natural fertilizer (or at least fertilizers with additional minerals beyond the typical stuff).

It's also, the actual air. There's more CO2 in the air these days. this super charges the growth of plants: vegetables and cereal crops. But, the amount of minerals in the plant remains the same but the plants grow larger with more sugar content. and so the amount nutrients per calories drops. this has been proven and documented.