What foods are harmful in large abundance?

We eat a lot of food, little thinking about how much that can bring maximum benefit or at least not to harm health. Everyone knows about the dangers of fast food and all kinds of snacks, so try to eat them as little as possible, but there are also useful at first glance products, the use of which in high concentrations is fraught with a variety of unpleasant consequences.


Everyone knows about the benefits of vitamin A. This substance is responsible for the quality of our vision, with its supply is the synthesis of hyaluronic acid, numerous enzymes and hormones. However, a high dose of vitamin A can cause acute poisoning. In medicine, there are cases of death after eating the liver of a polar bear, shark, marine animals. And although such “delicacies” are not available in the menu of ordinary people, it does not mean that they can eat without restrictions products rich in vitamin A.

Especially dangerous for the body is hypervitaminosis retinol, but an excess of carotene, which is present in large quantities in carrots, pumpkin, sea buckthorn and other fruits and vegetables of orange color, does not act so aggressively on health. However, lovers of these fruits can easily face carotene jaundice, the symptoms of which are associated with yellowing of the skin and an increase in the level of bilirubin in the blood.


Many people were told about the danger that is inside the core bone in their childhood. But the forbidden fruit is known to be sweet, so the taste of cherry kernels, apricots and other fruits we get acquainted in childhood. Well, that did not eat too much – stopped pretty hard shell, which still had to somehow chew. Meanwhile, the nuclei are really able to provoke poisoning with all the ensuing consequences, namely nausea, vomiting, General weakness and dizziness. And all because of the fact that they contain hydrocyanic acid – a strong poison. To maintain your health, it is better not to eat more than 5 cores of your favorite berries per day.


This fruit is tasty and healthy, and the content of saturated fat is one of the highest places among its brethren. It is recommended to eat all without exception, and especially to workers of mental and physical work. Brazil nuts are a good source of magnesium and thiamine, but mostly selenium. This trace element is essential for normal functioning of the body, because it is involved in metabolism, redox processes, the functioning of the immune system. However, it should be understood that selenium and its compounds are incredibly poisonous and similar in nature to arsenic.

Therefore, it is necessary to observe moderation in the use of foods rich in this mineral. With an excess of selenium in the body there are characteristic symptoms of poisoning – nausea, vomiting, diarrhea, depression and possible damage to the Central nervous system. Therefore, it is better to observe the norm and do not eat more than 4-5 nuts per day.

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Recently in mass media there is more and more evidence that coffee not so negatively influences health as it is tried to present. This favorite drink improves concentration, memory and attention, increases productivity and mood, and also reduces the risk of developing Alzheimer’s and Parkinson’s diseases. However, there is also a proverb that “any medicine can be poison, and any poison – medicine”. It’s a matter of dosing. To feel the serious negative consequences of drinking coffee, you need to be an avid coffee lover and drink 4 – 5 cups of drink a day. Under such conditions, a person waiting for nausea, headache, insomnia, disruption of the cardiovascular system and others.


Kombucha is credited with many useful, including medicinal properties, which, unfortunately, are not proven by scientific medicine. Thus, the drink obtained through the action of yeast mushrooms is quite tasty and perfectly quenches thirst, the only trouble is that it can not be done constantly and in large quantities. According to experts, a day can be consumed no more than 150 ml of tea kvass, and of great importance is the day after refueling tea you do it.

If the kvass is stagnant, you get a properties of vinegar, and therefore its use is contraindicated altogether in order to avoid various unpleasant consequences. But even a fresh drink should be used with caution to those who suffer from gastritis and stomach ulcers. In addition, it is contraindicated in diabetes.


Potatoes are one of the most commonly eaten foods that we often prepare for future use. This habit can cause a number of unpleasant symptoms associated with poisoning with solanine. The thing is, the longer to store potatoes, especially if it experiences the effect of light, then begin to produce glycoalkaloids solanine, and this can be understood by the appearance of a characteristic green color. However, the concentration of this dangerous substance in potatoes may also increase under other circumstances, such as damage to tubers and certain diseases, such as late rot.

Of course, a small amount of such green potatoes is unlikely to lead to poisoning, but here is of great importance the age of the person and his weight. For the appearance of gastrointestinal and neurological disorders in children, a very small concentration of solanine is enough, so it is better not to risk and not to eat green, covered with shoots, as well as damaged potatoes.

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