foods that are edible to human but dangerous

1. Cassava


Cassava is a woody shrub which is known as the third largest source of foods carbohydrate in the tropics, after rice and corn. Cassavas are generally found in the caribbean and south america .Cassava contains cyanogenic glucosides,which is extremely poisonous.If cassavas are prepared incorrectly, it can be deadly .Cassava poisoning leads to a irreversible paralysis due to a high level of cyanide.Cassavas cyanide can be mainly found within the roots and the leaves. If cassava leaves are pounded into a paste with flour and left in the shade for 5 hours, the cyanide will break down.


2. Cherries


Cherries are definitely one of the most versatile fruits. You can eat them raw, cook them, bake them, and get them tart or sweet. Cherries can even be used in certain types of liquor. Despite their overall red goodness, cherries are toxic. If you’ve ever eaten a cherry and without thought chewed on the pip or left it in your mouth, you more than likely introduced hydrogen cyanide into your body. If a cherry pip is chewed, crushed, or somehow damaged, it automatically produces hydrogen cyanide. Symptoms of mild poisoning include headache, dizziness, confusion, anxiety, and vomiting. Larger doses can lead to difficulty breathing, increased blood pressure and heart rate, and kidney failure. Reactions can include coma, convulsions, and death from respiratory failure.

3. Apples



Apple is certainly one of the most widely cultivated fruits that contains cyanide, but not on a high level. The fruit itself does not contain the chemical, but you will find cyanide in the apple’s seeds. Eating all of the seeds in one apple won’t kill you. Of course, if enough apple seeds are eaten,it could result in apple seed poisoning. The cyanide is released by damaging the seeds, like chewing and swallowing it. Persons who experience apple seed poisoning may have trembling, spasm, rapid heart rate, weakness and headache. Large amount of cyanide may cause difficulty breathing, coma, respiratory failure, low blood pressure, convulsions, lung damage or even death. The survivor of the serious poisoning may have an aftereffects such as heart or brain damage.

4. Almonds




Almonds, most always said to be nuts, are actually seeds and are extremely popular around the world. Much like cashews, almonds are extremely poisonous if it is not heated. It is generally the bitter almonds that need to be treated to get rid of the poison. The seeds are full of cyanide, and in many countries are illegal to sell without having been processed in order to get rid of the poison within the seed.Almonds are said to be one of the earliest cultivated foods.

5. Potato

we've probably know potato already,but one thing you may have not heard of that potatoes itself are poisonous. Potatoes contain glycoalkaloid poison, which caused an extreme nervousness and stomach upset. In the past,  there have been deaths due to potato poisoning. It is rare, but most happen due to someone drinking potato leaf tea, or eating green potatoes. Death doesn’t come suddenly. It usually results in weakness and then a coma. If you ever look at a potato, you may have realized that some parts of the potato turn green, it is due to the levels of glycoalkaloid poisons.The poison is found throughout the plant, but especially in green potatoes and new sprouts. Never eat potatoes that are spoiled or green below the skin. Always throw away the sprouts.Potatoes that are not green and have not had any sprouts are safe to eat.