The seeds within the core are what could cause the most concern. Apple seeds contain a compound called amygdalin. If a dog's digestive enzymes come into contact with this compound, it gets broken down to form the toxic gas hydrogen cyanide. This chemical reaction can only occur if the seed shell breaks.
What happens if my dog eats apple seeds?
However, the core of the apple and the apple seeds especially can be harmful to dogs. Apple seeds contain a small amount of cyanide which is released when they're broken or chewed. Just swallowing a few apple pips is unlikely to cause your dog any harm, but it's best to remove them and avoid the risk.
How much apple seeds will kill a dog?
The Toxic Dose Of Apple Seeds A medium sized dog would need to eat 85 grams of apple seeds and completely chew them up to get a toxic dose (source: ASPCA). We did an experiment: I weighed the seeds from seven apples (54 seeds: average 8 seeds per apple) and reached 3 grams.
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