Every food pretty much follows a Gaussian curve in terms of benefit. There's an ideal amount, with too little being bad, and too much being bad. All plants have some form of natural toxin as a defense against being eaten. Even broccoli has oxalic acid which can lead to kidney stones in high amounts. Cooking helps mitigate these, as well as sourcing from an organic farm or your back yard. But it's always safer to eat a variety of vegetables, so you distribute whatever toxins each one has, natural or man-made, and get varied nutrients. There's no silver bullet.
Sourcing from your back yard (and to a lesser degree, a single farm; and to a still lesser degree a single geographic region) means you're not eating veggies grown in a variety of soil compositions, even if you are eating a variety of plant species.
The most extreme way this can fail (that's common enough to note) is if the soil in your back yard is high in lead.
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Every food pretty much follows a Gaussian curve in terms of benefit. There's an ideal amount, with too little being bad, and too much being bad. All plants have some form of natural toxin as a defense against being eaten. Even broccoli has oxalic acid which can lead to kidney stones in high amounts. Cooking helps mitigate these, as well as sourcing from an organic farm or your back yard. But it's always safer to eat a variety of vegetables, so you distribute whatever toxins each one has, natural or man-made, and get varied nutrients. There's no silver bullet.
"sourcing from an organic farm or your back yard"
Sourcing from your back yard (and to a lesser degree, a single farm; and to a still lesser degree a single geographic region) means you're not eating veggies grown in a variety of soil compositions, even if you are eating a variety of plant species.
The most extreme way this can fail (that's common enough to note) is if the soil in your back yard is high in lead.