The seeds of fruit contain the raw materials for hydrocyanic acid. Hydrocyanic acid is released when the seeds are bitten. Hydrocyanic acid is an extremely toxic colorless to very light blue liquid and is a strong and potent poison for dogs. Oxygen uptake in organs is reduced. The brain and heart are extra sensitive to this. Hydrocyanic acid can cause general weakness, headache, confusion, dizziness, fatigue, panic, shortness of breath, nausea and vomiting. Shortness of breath can cause a dog to fall into a coma. Ultimately this can lead to death.

General information:
It is therefore important that you, as a dog owner, know about the dangers of some foods and plants. What is normal for a human to eat can be very poisonous for a dog (e.g. chocolate, sweetener, nuts, onion, garlic, etc.). Plants in the house and around the house can also be dangerous. Puppy's has listed a large number of toxic resources to make owners aware of the dangers. Young dogs in particular are at greater risk than adult dogs, as puppies are much more sensitive to toxic substances than large adult dogs. You can share the list of toxic things below with your dog friends on Facebook.

Milk, milk products like ice cream:
Milk contains the substance lactose, lactose is not/difficult for dogs to digest. If dogs are given (too much) milk products, they will develop severe diarrhea.

Cheese: Cheese contains a lot of salt and lactose. This can cause abdominal cramps, nausea, loss of consciousness and diarrhea.

Salt: A large amount of salt can cause salt poisoning. A dog naturally does not eat/hardly eats salt. Our own food contains too much salt for dogs (chips/pizza). Salt poisoning can lead to (temporary) loss of consciousness and in some cases death. Inducing vomiting by putting salt on the tongue is therefore strictly not recommended.

Onions, Garlic, Chives, Leek: Can damage the red blood cells, which can lead to anemia, with anemia there is too low a hemoglobin level in the blood. Hemoglobin takes care of the oxygen and carbon dioxide transport of the body. Too low hemoglobin causes dizziness, pale mucous membranes, cold legs.

Chocolate: Chocolate contains theobromine, which is very toxic to dogs. A few grams of chocolate can sometimes have fatal consequences. Theobromine causes damage to the nervous system. Dogs become restless, shaky and crampy, drink more and can even die.

Raisins and Grapes: Raisins and grapes contain a substance that irreparably damages the dog's kidneys. Unfortunately, you only notice anything when 75% of the kidneys are affected. Once damaged kidneys cannot recover, you can only support them by means of: special diet foods and medications.

Cherry stones: Contain cyaogenic glycosine, this substance is released when the stone is broken. If the dog has eaten cherry stones you may see the following symptoms: Drunk walking, nausea, vomiting.

Apple, pear, seeds: Apple seeds contain raw materials for hydrocyanic acid. This is released as soon as the seeds are bitten. Hydrocyanic acid reduces oxygen uptake in the organs and this can lead to headache, confusion, dizziness, fatigue, panic, shortness of breath, nausea. The shortness of breath can cause the dog to fall into a coma and even die.

Walnuts, Macadamia nuts: Can make the dog very sick. If a dog has eaten walnuts you may see the following symptoms. Paralysis of the legs, drunken walking, vomiting and high body temperature. These symptoms often disappear on their own after 3 days

Liverwurst: Contains a lot of Vitamin A. Dogs can store this vitamin well and only excrete it to a limited extent, which means that it can accumulate in the body to a toxic level. Too much Vitamin A can lead to headaches, nausea, dizziness, fatigue, abnormalities of the eyes, skin and skeleton and liver damage.

Pork: Undercooked/raw pork is very dangerous for dogs. It may be infected with the Aujeszky virus. Also called pseudorabies. Once infected, no treatment is possible. Dogs get very bad stomach aches and excessive saliva and aggression against their own body are the most obvious symptoms. The disease is fatal.

Rhubarb: can cause a sudden drop in calcium levels in the blood. The dog needs calcium for the bone structures but also for the muscles. A calcium deficiency causes muscle cramps and tremors and, in the long term, bone decalcification.

Paprika: Some dogs are allergic to paprika. If a dog that is allergic to peppers eats peppers, they often get severe itching.

Spinach: Contains oxalates, which is harmful to the kidneys in large quantities. Oxalates bind, among other things, to calcium in the body, which can irritate the kidneys.

Avocado: Contains the substance Persin, which is poisonous to dogs. Dogs cannot break down this substance either. It causes lethargy, shortness of breath, subcutaneous fluid accumulation, blue mucous membranes, coughing and poor condition, heart problems and dogs can die from it.

Broccoli: contains the substance isothiocynate, dogs cannot digest this substance. They suffer from intestinal gas and intestinal cramps. Too much isothiocynate can also lead to thyroid complaints.

Mushrooms: And other types of mushrooms can be poisonous to dogs, causing intestinal cramps and nausea. In some cases they can die from eating mushrooms, so make sure your dog does not eat mushrooms during the walk.

Potato: Raw potato contains the substance solanine. This is poisonous to dogs. Potato is a member of the nightshade family, this plant family contains toxins that can cause the following complaints: a burning and sharp feeling in the throat, diarrhea, nausea, drowsiness, shortness of breath, unconsciousness and cramps. Small dog breeds are extra sensitive to solanine. Boiled or baked potatoes often cause fewer complaints.

Tomato: Contains the substance tomatine, which is poisonous to dogs. Tomato is a member of the nightshade family. This plant family contains toxic substances for dogs that can cause the following complaints: a burning and sharp feeling in the throat, diarrhea, nausea, drowsiness, shortness of breath, unconsciousness and cramps.

Caffeine: Is dangerous for dogs, a small amount of caffeine already causes an increase in heart rate, this increase in heart rate can lead to cardiac arrest.

Alcohol: Reduces motor skills, at higher doses there is loss of consciousness with a risk of respiratory depression. The dog can die from this. The smaller the breed the more sensitive it is to alcohol.

Human Painkillers: Medication intended for humans contains substances that can be very toxic to dogs. Even a small amount can have harmful effects. We often see vomiting/diarrhea with blood, drowsiness, loss of appetite. Some drugs cause persistent complaints, even after the medication has been stopped. Such as Paracetamol, for example.

Tobacco/Nicotine: Is very toxic to dogs, it is a powerful nerve poison, which is why it is also widely used as an insecticide. Dogs cannot break down nicotine properly, which causes symptoms such as vomiting, nausea, dizziness and shortness of breath. A small amount can even be fatal.

Xylitol and Aspartame and other sweeteners: Can lead to a fatal drop in blood sugar levels in dogs. The substances increase the dog's own insulin. This can lead to the death of the dog.

Toothpaste: Often contains Xylitol which is very toxic to dogs. Xylitol causes a fatal drop in blood sugar levels in dogs. The substance increases the body's own insulin.

Ditch water: Drinking from ditches or other standing water entails risks, especially in the summer. Botulism may occur in this type of water. Botulinum, the substance produced by the botulism bacteria, causes a blockage in the signals to the nerves and ultimately causes paralysis and even death.

Hogweed: Contains essential oil with furocoumarins, this substance causes inflammation, itching, bumps, burns and other skin irritations. Some dogs may also experience shortness of breath, breathing problems and difficulty swallowing. Touching alone can cause these complaints.

Christmas rose: Is very poisonous to dogs, after ingestion the following symptoms can be seen: Hallucinations, vomiting, swelling of the throat resulting in suffocation.

Arum: Causes itching and skin irritations. In some cases, shortness of breath, breathing problems and difficulty swallowing may occur.

Hole plant: Causes itching and skin irritations. In some cases, shortness of breath, breathing problems and difficulty swallowing may occur.

Aster: Releases substances that cause stomach and intestinal complaints in dogs. The water around the plant also contains these substances.

Monkshood: Is extremely poisonous to dogs, contact with this plant should be avoided. Poisoning manifests itself in swelling of the mouth and throat, shortness of breath, irregular heartbeat and can lead to paralysis.

Yew: Only the needles and seeds of this shrub are poisonous. However, a small ingestion is enough to poison a dog. Symptoms of poisoning are: muscle tremors and muscle weakness, heart rhythm disturbances, they can also die.

Ficus: Causes skin complaints such as itching and strange bald spots. Some dogs may also experience shortness of breath and difficulty swallowing.

Autumn crocus: Contains the substance colchicine, which is very poisonous to dogs and causes paralysis. If the dog ingests a larger amount, it may die.

• Apples, Apples are a great source of Vitamin A & C as well as fiber. They are low in protein and fat. Don’t feed your dog the whole apple – remove the core and seeds.
• Bananas, contain natural sugars that can give your dog a boost in energy. They also contain amino acids, potassium, vitamin C and B6 and improve heart health and blood pressure.
• Black, Blue and Raspberries, Berries are packed with antioxidants and phytochemicals, which are chemical compounds in plants that have been found to help fight cancer in humans. They are also low in sugar and calories. Blackberries and raspberries, however, also contain small amounts of naturally occurring xylitol. This is a sweetener that is used in a lot of low-sugar foods. It’s very toxic to dogs in large amounts, but your dog would have to eat a lot of berries to cause hypoglycemia, and a huge amount for it to be lethal. A small handful a day should be the limit.
• Cantaloupe, If your dog is overweight or has diabetes, cantaloupe should be given in small quantities because it is high in sugar. However, it contains many nutrients, water and fiber. Do not feed your dog the seeds.
• Cranberries, Although many dogs do not like the tartness of cranberries, they can be healthy for your dog in small quantities.
• Honeydew, is safe and healthy for dogs to eat. It contains vitamin C, potassium, and fiber, and it’s low in calories. And much like cantaloupe and watermelon, honeydew contains a high percentage of water—making it great for hydration.

  Always remove the rind and seeds before feeding honeydew to your dog to avoid any potential choking hazards or intestinal blockages.

• Mango, are also high in sugar and should only be fed to dogs in moderation. However, they are high in many nutritional benefits like fiber, potassium, and vitamins A, B6, C, and E. Be sure to remove the mango seed, and cut it into small pieces when feeding it to your dog.
• Orange, After an orange is free of its peel it can be a tasty treat for your dog. Oranges contain vitamin C, potassium, and fiber.
• Peaches, Avoid canned peaches because of their sugar, but once the pit and skin have been removed from a peach, they are a great source of fiber and vitamin A.
• Pears, Once the pit and seeds have been removed, pears are rich in copper, fiber and vitamins C and K.
• Pineapple, Pineapple is a great sweet treat for dogs containing vitamins, minerals, fiber and bromelain (helpful in absorbing proteins).
• Strawberries, Want your dog’s teeth to be whiter? Believe it or not strawberries contain and enzyme that help to brighten dog’s teeth. They are also full of fiber and vitamin C. Feed these to your dog in moderation because they are high in calorie.
• Watermelon, Who doesn’t like watermelon to keep you hydrated on warm sunny days? Watermelon also contains Vitamin A, B-6 and C as well as potassium.

• Broccoli, Dogs can eat broccoli sparingly because it may cause gas. Broccoli contains Vitamins A, C and D, beta-carotene, folic acid, fiber, calcium and chromium.
• Brussel sprouts, Although I’m not a big fan of Brussels sprouts, they contain vitamins A, B1, B6, K and G and are a good source of fiber.
• Carrots, Most dogs love carrots. They are good for a dog’s vision as well as his skin and for cleaning teeth and gums. They contain vitamins A, C, D, E and K, beta-carotene, iron, magnesium, potassium and fiber.
• Celery, Does your doggie have bad breath? Try feeding him some celery. Containing vitamins A, B and C, this snack can promote heart health and fight cancer too.
• Chia seeds, The seeds of this traditional grain have several of the same benefits as the more well-known “super seed” flax. But unlike flax seed, you don’t need to grind them to reap the health benefits. You can simply sprinkle seeds onto your dog’s meals. The nutritional benefits of chia include fiber, omega-3 fatty acids, calcium, antioxidants, and even protein. They are also highly absorbent, which means they can help hydrate the body.
• Cucumbers, Is your dog overweight? Cucumbers are low in calorie and have few carbohydrates, fats or oils. They contain vitamins C, B1 and K, as well as potassium, copper, magnesium, and biotin.
• Fish, Oily fishes like herring, salmon, sardines, mackerel, and anchovies are bursting with omega-3 fatty acids. Omega-3s can do wonders for your dog’s skin, coat and brain; it can also inhibit inflammatory processes that cause arthritic pain and other chronic canine conditions. (If your dog has any of these conditions, ask your vet if fish oil in capsule form might help too.) Fish are also an excellent protein source, with many essential vitamins and minerals.
• Kale, This supercharged leafy green contains loads of vitamins, including A, E, and C. Kale is a good source of antioxidants and helps the liver detoxify the body. It also has anti-inflammatory properties. If your dog has bladder stones or kidney disease, ask your vet before feeding your dog kale; it may need to be avoided.
• Green beans, Raw, chopped or cooked, green beans have important vitamins and minerals and are full of fiber while being low in calorie.
• Nori (dried seaweed), Dried edible seaweed is a Japanese staple. Often associated with sushi, nori is available in some supermarkets, especially those that stock Asian food items. It has protein, galactans (a soluble fiber), vitamins C, E and all the Bs, and minerals such as zinc and copper. It also contains some lesser-known sterols and chlorophyll, which may help regulate metabolism. Nori may also aid in fat metabolism, immune function, and anti-tumor responses. Be sure to buy low-sodium nori to keep your dog’s salt intake in check.
• Peas, Cooked, frozen or thawed (not canner), most dogs love peas. You will often find this ingredient in dog food because peas are a natural source of protein. Peas contain vitamins A, B1, B2, B3, B6, C and K in addition to thiamin, phosphorus, manganese, fiber and folate.
strong>Pumpkin Low in calories and high in soluble fiber, pumpkin helps maintain a healthy digestive tract. It is low in sodium and exceptionally high in carotenoids, potassium, and vitamin C; it also has some calcium and B vitamins. Canned organic pureed pumpkin can be found at grocery stores but be sure that it is pure and not a pie filling — it should have no sugar or spices added.
• Quinoa, Commonly considered a grain, quinoa is actually a seed related to spinach. It’s a complete protein, supplying all eight of the essential amino acids and is a good source of fiber, folate, magnesium, iron, phosphorous, and many phytochemicals. One of the few vegetable sources of complete proteins, quinoa is a potent antioxidant and helps reduce the risk of diabetes.
• Sweet Potatoes, These tuberous root veggies are rich in beta-carotene and boast 150% more antioxidants than blueberries. Sweet potatoes are also super high in heart-healthy vitamin A and packed with vitamin C to keep your dog’s immune system strong.
• Yogurt, Yogurt contains active cultures known as probiotics (aka, healthy bacteria), which help keep bad bacteria away. It may improve gut function, contains a number of nutrients, including protein, calcium, phosphorus, vitamin B12, potassium, zinc, and iodine. It is also a fair source of other B vitamins, such as riboflavin and pantothenic acid (required for enzyme action and energy production, as well as other cellular functions).