There's more than twice as much organic produce sold in stores as is grown in fields.
Just a random factoid to keep in mind.
But the modern commercial product is a disappointment, if you're used to eating food.
In reverse order of preference:
My garden (which I don't have this year. Life sux)
Local, know the source and approve (pigs, chickens, turkeys, and eggs, especially, because you can't always see the difference on the shelf. The difference between a well-raised chicken and a store chicken is one of the biggest differences involved here - if you notice the difference in eggs, the difference in chickens will startle you yet. But the label "organic" is not always reliable, and costs a fortune).
Organic, has the label and/or is in the right store.
Interestingly, that's the reverse order of cost. As with tobacco, better quality is had cheaper. I know a guy who raises flowers to eat the buds, as a vegetable. That's luxury. It's cheap.
I put stuff on poles, etc. Beans, cucumbers, whatever. My next garden is raised bed, and there will be poles anyway.
My grandfather: "You can spend it on food, or you can spend it on doctor bills".
Huge differences noted in: beans, sweet corn, tomatoes, poultry and eggs, pigs, carrots, and so forth. We get the water boiling, or preheat the bake oven, before we even pick the sweet corn
Herbs available from one's own garden in large quantities turn into different ingredients entirely - a pound of basil is food, not seasoning. You can leave beets in the ground until they are huge and woody, and then grind them up for thick borscht strongly flavored, slice them for a strikingly pretty baked vegetable (red and white grain). Carrots likewise.