10 Produce Parts You Toss That Are Actually Safe (and Good) to Eat

Somewhere along the way, a lot of us got told that carrot greens are poisonous. Toss them, don’t compost them near the dog, definitely don’t eat them.

Here’s the thing. A big part of that scare can be traced to a 2009 New York Times blog post, one influential source of the confusion that spread online.

It offered no evidence at all. No study, no case report, no toxicologist.

Just a claim that got repeated until it felt like common knowledge.

People are still arguing about it in cooking forums to this day, which tells you how sticky a good-sounding myth can be.

So the carrot tops on your grocery-store bunch are fine to eat. But that raises a better question: what else have you been tossing that’s perfectly good, and which parts are actually worth fearing? Because some produce really can make you sick, and the difference between “harmless myth” and “genuine hazard” comes down to one old idea we’ll get to at the end.

Here are ten commonly-tossed produce parts, sorted into the ones you should rescue, the ones you should absolutely keep tossing, and the one that lives in the weird middle.

Bucket one: stop throwing these out

1. Carrot tops

Let’s finish the myth we started with. Carrot greens aren’t toxic. They’re loaded with vitamins A, C, and K, plus potassium and iron.

They taste like a slightly bitter, grassy herb, and I treat them like parsley’s moodier cousin. Pesto, chimichurri, blended into a soup, chopped over roasted vegetables.

There’s one honest caveat, and it isn’t the poisoning myth. It’s personal rather than universal. Carrot is a documented food allergen, and the greens are still carrot, so anyone who reacts to carrots can react to the tops too. That’s an individual allergy or intolerance in susceptible people, not a toxin baked into the plant, and it’s the honest reason to say carrot tops are safe to eat rather than harmless for absolutely everyone.

There’s a second caveat that’s about handling rather than eating. Carrot greens contain furocoumarins, and getting the sap on your skin and then heading out into the sun can trigger phytophotodermatitis, a phototoxic reaction rather than an allergy. It takes both the plant contact and the later sunlight to happen, and it’s a skin reaction to touching the greens, not poisoning from eating them. Grocery-store carrot tops are edible, just not completely risk-free for every single person.

One separate note only for foragers: wild carrot looks a lot like poison hemlock, which is deadly, and the two can be genuinely hard to tell apart.

Young plants are the worst case, because hemlock’s tell-tale purple stem blotches can be faint at that stage. Two field traits are not a safe way to bet your life, so don’t forage wild carrot on your own say-so.

If you’re not certain, don’t eat it, and get it identified in person by an expert or your local extension office.

Grocery carrots with the tops still attached carry none of that risk.

2. Beet greens

You bought the whole beet. Eat the whole beet. Those leafy tops you’ve been snapping off and binning are not only edible, they might be the best part.

Beet greens actually carry more vitamin K and more magnesium than the root everyone bothers to cook. All that for about 22 calories per 100 grams. Young leaves are tender enough to throw in a salad raw. Bigger, older leaves do better with a quick cook, the same way you’d treat chard.

3. Broccoli stalks

The floret gets all the glory and the stalk gets the compost bin, which is backwards. The stalk tastes basically like the rest of the broccoli and carries a similar load of vitamin C, folate, fiber, and protein.

The only reason people avoid it is that woody outer layer. Peel that off and the inside is sweet and crunchy. Slice it into a stir-fry, roast it at 400°F until the edges catch, or just cut it into sticks and eat it raw with dip.

4. Celery leaves

Those feathery leaves at the top of a celery bunch are dramatically more nutritious than the crunchy stalks you actually eat, and most people rip them off and throw them out on autopilot.

Use them like parsley. They’re great in soups, tossed through a salad, or blended into a pesto. One catch: they don’t keep well, so use them within a day or two instead of letting them wilt in the drawer.

Honestly the flavor is stronger and more interesting than the stalk, so it’s a strange thing to be discarding.

5. Watermelon rind

You can eat the entire watermelon. Flesh, seeds, and the pale rind between the pink and the dark green skin. Somewhere along the way a lot of American kitchens decided the rind was garbage.

It’s not. Like the rest of the fruit, the rind brings vitamin C, potassium, and fiber, and it’s the part where citrulline, an amino acid the plant concentrates in the rind, is most abundant. Citrulline has been studied for possible effects on blood pressure, though eating watermelon rind isn’t a proven treatment for anything.

It tastes mild and a little like cucumber, which makes it weirdly versatile. People blend it into smoothies, pickle it, roast it, stir-fry it, or throw it into a gazpacho or salsa. Give the outer skin a good wash first, since that’s where any pesticide residue sits.

6. Citrus peel and pith

That white spongy layer under an orange peel, the pith, has a bad reputation it doesn’t earn. It’s completely safe to eat. Orange pith is chewy but not really bitter, and lemon pith is only mildly so.

It’s also where a lot of the good stuff hides. Pith is packed with fiber and pectin, which get linked to lower cholesterol and better blood sugar, plus plant compounds like hesperidin. And the zest is a real vitamin C source.

Citrus zest contributes vitamin C and fiber. Lemon zest chips in vitamin C and fiber too. If you’re grating the zest off non-organic citrus, wash it well or buy organic, because the peel is where the wax and spray live.

Bucket two: yeah, actually keep tossing these

Now the plot twist. Some of the “poisonous” reputations out there are completely real. This is where the folklore finally earns its keep.

7. Rhubarb leaves

The stalks make pie. The leaves can genuinely hurt you. This isn’t a myth, and it’s the one place I want to be a hard line: never eat rhubarb leaves, at any amount, prepared any way.

The leaves are high in oxalic acid, around 0.5 grams per 100 grams of leaf. Oxalic acid grabs onto calcium and forms sharp little crystals that irritate your gut and stress your kidneys.

Now, oxalic acid isn’t some exotic poison. It shows up in small amounts in spinach, broccoli, and cauliflower too, and you eat those happily. The difference is concentration. Rhubarb leaves carry enough to actually be dangerous, and no amount of cooking fixes that.

There’s even a wrinkle where some old case reviews didn’t find oxalate in the victims, which hints that other compounds in the leaf might be doing damage too. The exact mechanism isn’t fully nailed down. The advice is the same regardless: leaves in the trash, stalks in the pie.

8. Apple seeds and stone-fruit pits

Here’s a fear almost everyone carries. You swallowed an apple seed, or your kid did, and now you’re quietly worried. Relax. On the cyanide front this one is mostly folklore, and it fails for the same reason the carrot-top myth does.

Apple seeds and the pits of cherries, peaches, and apricots contain amygdalin, which turns into cyanide only when the seed is chewed or crushed. Swallow one whole and it passes through largely intact, so the cyanide never gets released.

For the cyanide to matter at all, you’d have to chew or crush a real quantity of seeds at once, not swallow the odd one by accident. Poison Control’s guidance on accidentally swallowing an intact seed or pit is reassuring on that specific point: it generally passes through without causing cyanide harm. The flip side is the rule actually worth remembering: don’t chew, crush, blend, or deliberately eat the seeds and pits.

The pits deserve more respect, though, and this is where I stop joking. Apricot kernels are the concentrated ones. European food-safety regulators at EFSA found that more than about three small raw kernels, or less than half of one large kernel, can push an adult past the safe one-time amount, and a single small kernel can do it for a toddler. There’s a whole wellness corner of the internet pushing them as some kind of superfood or cancer cure, and the FDA has specifically warned that these amygdalin-containing seeds can cause fatal cyanide poisoning.

So don’t go looking for apricot kernels to snack on. Accidentally swallowing a whole, intact pit generally won’t give you cyanide poisoning, but a few deliberately chewed kernels genuinely can, and that’s the kind of thing worth calling poison control over.

9. Green and sprouted potatoes

That green tinge on a potato, or the pale sprouts poking out of the eyes, is your cue to get the knife out or throw the thing away. When potatoes sit in light or start to sprout, they build up glycoalkaloids like solanine, and that’s a real dose-dependent toxin.

The numbers are stark. A normal potato runs about 12 to 20 mg of glycoalkaloids per kilogram. Green skin can climb to something like 1,500 to 2,200 mg per kilogram, and sprouts concentrate them even more heavily still. Cut generously around green spots and sprouts, or if a potato is heavily green, just retire it.

And here’s the one genuinely counterintuitive fact in this whole article: cooking does not fix a green potato. Boiling, roasting, frying, none of it reliably breaks down solanine. “Just cook it a little longer” is exactly the wrong instinct here.

Bucket three: the honest maybe

10. Tomato leaves

Tomato leaves are the reason I saved a whole bucket for one item. They’re neither the poison the myth claims nor a hidden treat you’re missing out on. They’re just genuinely in between, which makes them the perfect note to end on.

Yes, the leaves contain glycoalkaloids, mainly alpha-tomatine and dehydrotomatine. But the levels are low enough that the normal brush with them, a few leaves that sneak into a sauce, does nothing to a healthy adult. Tomato leaves simply aren’t recommended as food, and eating a large quantity could bring on stomach upset.

This isn’t a blanket invitation to start cooking with them, though. They belong in the compost, not on a plate, and there’s no nutritional reason to change that.

So tomato leaves aren’t the death sentence the internet made them out to be. But there’s also no real reason to eat them. File them under “you’ll be fine if a little gets in your sauce, don’t go making a salad of them.”

The one rule that runs through all of this

Notice the pattern. The scary myths, carrot tops and tomato leaves, fell apart the moment anyone checked the actual amounts. The real hazards, rhubarb leaves and green potatoes and a fistful of chewed apricot kernels, are real because of amounts too.

It’s a five-hundred-year-old idea, and it’s one of the most useful principles in any kitchen: the dose makes the poison.

A trace of oxalic acid in your spinach is nothing. A rhubarb leaf is a lot.

One accidentally swallowed apple seed is nothing, while deliberately chewing a big handful is a different story.

It isn’t the only thing that keeps a kitchen safe, of course. Food poisoning, allergies, cross-contamination, and choking all still play by their own rules.

But for the “is this plant part going to poison me” question, dose is the whole game.

So the next time someone tells you a produce part will kill you, ask the follow-up question. How much? That’s usually where the myth quietly falls apart, and where the actually dangerous stuff finally admits what it is.

If you’ve got a specific health condition in the mix, it’s always worth asking your doctor about the edge cases. For everyone else, go rescue your carrot tops.