21 Dec,2023
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If you’ve ever bitten into an apple seed or cherry pit, you know it tastes bitter. You’d recognize a similar flavor in the pits of other stone fruit — apricots, peaches, plums, nectarines — if those weren’t too tough to bite into. It comes from a chemical (amygdalin) that turns into cyanide when mixed with the acid in the human digestive systems. Swallowing a few apple seeds won’t have any effect, but pulverized pits should always be avoided.
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Many legumes can upset your stomach if they’re undercooked, but it’s especially important to look out for kidney beans. Red kidney beans contain a chemical (phytohaemagglutinin) that can cause nausea, diarrhea and vomiting if not prepared properly. Cooking them breaks down this chemical, so be sure to cook dry kidney beans fully. (Canned beans are pre-cooked.) And never let children play with dry kidney beans or use them for art projects.
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While you’d have to eat a lot of leaves, roots or stems to have a reaction, it’s possible for the leafy parts of tomatoes to make you sick. They contain an alkaloid (tomatine) that’s mildly toxic in large quantities, though most people won’t experience more than an upset stomach. Animals, on the other hand, are more susceptible. If you grow tomatoes at home and have a dog who’s fond of chewing on things, be sure to put your plants out of reach.
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While potatoes are safe to eat even after they’ve sprouted, there are parts you should remove to safeguard against illness. The sprouts and eyes — the part of the potato that would sprout into a new potato plant if sown — contain compounds that can cause a headache, vomiting or other digestive symptoms.
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Rhubarb leaves are high in oxalic acid, which can cause kidney failure or kidney stones when consumed over time. While one death was reported during World War I (the leaves were mistakenly recommended as a food source), it would take 10-plus pounds for you to feel the effects.
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Most of us will never come in contact with asparagus plants, let alone their berries. But if you grow asparagus at home, be aware that its berries contain a steroid that can cause vomiting, diarrhea and stomach pain. As with tomato plants, curious dogs are most susceptible, so be sure to section off your asparagus plants.
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While we tend to think of cashews as nuts, they’re actually seeds from the cashew fruit, a plant most commonly found in the Amazon. The shells of cashews are covered with anacardic acid, which is related to the acid found in poison ivy.
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