A potato is a vegetable that is popularly eaten as a side dish or as a snack. It has many health benefits, including being low in calories and rich in fiber. However, eating too much of it can cause some serious health problems, including death.

Potatoes contain solanine and chaconine, two alkaloids that are toxic to humans and animals when ingested in large amounts. The amount of solanine or chaconine in potatoes depends on how they are prepared and where they were grown. For example, potatoes grown in Montana have more solanine than those grown in Pennsylvania.

Ingestion of toxic amounts of raw potatoes can cause gastrointestinal tract irritation and diarrhea, vomiting, and nausea. Excessive consumption can result in severe headaches, muscle weakness, blurred vision, and difficulty breathing. In very rare cases (about one case per million people), ingestion of toxic amounts may result in death due to respiratory failure within two hours after ingestion begins.

How Much Raw Potato Is Poisonous

If you’re considering giving your dog a slice of potato for dinner, you may be wondering how much is toxic. Thankfully, there are several factors to consider. The size and amount of potatoes your dog consumes play a significant role in the severity of its symptoms. Small dogs are more tolerant of solanine and may be fine with just a slice, while large dogs may suffer from severe reactions.


You’re probably wondering, “How much Solanine is in raw potato?” The chemical substance is found in plants belonging to the Solanaceae family, including the potato. The potato contains high concentrations of solanine in the green parts of the plant and low concentrations in the tubers. Exposure to sunlight and mechanical injury to the potato plant stimulates the production of solanine, and consuming raw potatoes high in solanine can result in toxic effects. A standardized dosage of solanine is 200 to 400 mg/kg in adults and 200 mg for children.

The Centre for Food Safety (CFS) investigated a case of solanine poisoning in the United States in September 2015. Two people reported that they had developed a burning sensation in the mouth and tongue after eating raw potatoes. While both people did not require hospitalization, they were in stable condition, and solanine levels were detected in their urine and raw potato samples. The findings are consistent with solanine poisoning because potatoes contain glycoalkaloids, which can cause gastrointestinal and systemic effects.

Although cooking potatoes can reduce solanine levels, peeling potatoes does not completely eliminate it. The skin contains 30 percent of the plant compound, while 70 percent remains in the flesh. It is therefore important to remove green spots before cooking. Sprouts and other green areas have higher levels of solanine. Peeling the potato will only decrease its solanine content by a few percent. Peeling a raw potato will leave about 70 percent of solanine.


Lectins in raw potatoes are dangerous, but not for everyone. It’s unclear whether a certain amount of lectins is toxic for humans. They’re harmless to normal people, but can be toxic for some. Some people may have digestive problems when exposed to lectins. Other people may have allergic reactions to the substances. Regardless of the cause, you should avoid eating lectin-rich foods if you have an allergy to them.

Lectins are proteins found in plants and animals. They may promote cell development, support cell communication, or play a role in the immune response. In the United States, lectins were found in thirty percent of the food we eat. These substances are present in many fruits and vegetables, including potatoes, beans, and bell peppers. In moderation, lectins are harmless – even when consumed raw – but cooking them can decrease their effects.

There are no proven toxic levels of lectins in raw potatoes, but the benefits of eating a diet rich in lectins may outweigh the negative side effects. In fact, lectins may have a positive effect on the health of your gut and may even help prevent disease. People with autoimmune diseases may also benefit from lectins, but if you have any underlying conditions, consult a nutritionist before you begin eating this food.

Glycoalkaloid toxicity

The toxicity of raw potatoes is associated with a group of chemicals known as glycoalkaloids, which are naturally occurring compounds found in potatoes and other members of the Solanaceae family of plants. These chemicals may cause intestinal discomfort and nausea, as well as diarrhea, fever, and neurological problems. High-dose glycoalkaloids can be fatal, and health experts have set a maximum glycoalkaloid concentration of 1 milligram per kilogram of body weight per day as the toxicity threshold.

In two laboratory experiments, serum concentrations of glycoalkaloid compounds were measured four to eight hours after exposure to GAs-containing solutions or mashed potatoes. After that, serum concentrations did not return to baseline levels within 24 hours. In fact, some glycoalkaloids, such as chaconine, have a half-life of 44 hours. Therefore, daily consumption of potatoes and potato products may cause the accumulation of these toxins and adverse effects.

Nevertheless, most people are ill-aware of the toxicity of glycoalkaloids by noticing the bitterness of raw potatoes. This bitterness can be accompanied by a stinging or burning sensation in the mouth and throat. This is the first warning sign that glycoalkaloid-rich potatoes could be dangerous. Although consuming these potatoes should be avoided, they may have a bitter taste or even a sour aftertaste.

Death from solanine poisoning

In ancient times, plants in the Solanaceae family were known to be poisonous to humans, and the hemlock plant was also used to punish Socrates, a famous thinker. In 1948, a fatal case of solanine poisoning was reported. A decade later, an outbreak of solanine poisoning was linked to potatoes in Japan, where 78 schoolboys became sick after eating leftover potatoes from the previous term. Now, researchers in Japan are studying the effect of solanine on human health, and a young Saudi boy has died.

Solanine poisoning after eating raw potato may be very harmful, causing symptoms including diarrhea, vomiting, and mental confusion. In severe cases, a person may experience breathing difficulties and paralysis. Fortunately, the symptoms typically subside within 24 hours, but severe cases may lead to respiratory failure or death. The most common symptom of solanine poisoning is nausea and vomiting, but the symptoms can be even worse. The symptoms of solanine poisoning depend on the person’s body weight and solanine tolerance.

The amount of solanine a human can absorb from potatoes varies, but a few hundred milligrams per kilogram will be fatal. So, it is essential to be aware of the toxic levels in foods. Even 100 grams of green potato can lead to death in a child. The toxic dose is two to five milligrams per kilogram of body weight, which is sufficient to cause symptoms such as diarrhea, stomach cramps, irritability, and even cardiac dysrhythmia. However, a child should be aware of the toxic effects of solanine poisoning and take steps to avoid them.

Effects on humans

One of the many health benefits of raw potato is its satiating effect. In fact, a 3.5-ounce serving of potatoes has about 2.5 grams of fiber. Fiber is a part of plant foods that the body cannot fully digest. Instead, it moves through the digestive system mostly intact. This fiber helps keep you regular. Other benefits of fiber include its ability to reduce cholesterol absorption and total cholesterol levels, as well as its effects on heart health. Most Americans are not eating enough fiber to reap these benefits. As a result, they should be aiming for at least 20 to 30 grams of fiber per day.

While some of the starch in potatoes is easily digestible, a certain portion is resistant. This resistant starch passes through the small and large intestines without breaking down. It is used as energy by the helpful bacteria in the gut. The presence of resistant starch has numerous health benefits. However, some research has indicated that eating raw potatoes may increase your risk of gastric diseases. However, cooking potatoes can mitigate these risks.

Studies have shown that the nutritional composition of potatoes depends on their pre-harvest conditions, including the abiotic and biotic stresses that the crop undergoes during the growing process. This results in a relatively low GI (low-to-medium) impact on potato consumption. The glycemic index of potatoes is low to medium. This means that they are low in GL. However, the GI value of potatoes varies from cultivar to cultivar.

Effects on dogs

There are a few reasons to give your dog raw potato, but mainly due to its high fiber content. Moreover, its low glycemic index means it will not raise your dog’s blood sugar level. Despite the benefits of feeding raw potatoes to your dog, there are certain precautions you should take. You should consult a veterinarian before giving your pet this vegetable. It is essential that you give your dog a balanced diet with the right proportion of nutrients and calories.

Solanine is the substance in potatoes that causes symptoms in dogs. It reduces the levels of acetylcholine, a neurotransmitter essential for healthy brain function. Solanine also affects several important bodily systems, including the liver, heart, and kidneys. Most dogs are unlikely to notice any problems if they have eaten a small piece of potato, but larger dogs are more likely to have a severe reaction.

While potatoes are not harmful to dogs, they may cause discomfort if they are not digested properly. Some dogs may experience mild symptoms, but it’s best to consult a veterinarian for advice on the best course of action. A small amount of potato can cause gastrointestinal distress, and you should avoid feeding your dog raw potatoes. However, it is possible to cook raw potato skins in a microwave for five minutes before serving.

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