Purines are vital components of every cell, first of all its karyon. A small part of them is produced in the body, but they mostly come with food. Purines are contained in practically all products. In the organism they are split into uric acid and then excreted. If this metabolism is impared and more uric acid is produced than excreted, or it stays in the body, the level of uric acid in the blood increases. For men the norm is 3,4-7,0 mg for 100 ml of blood, for women it’s 2,4-5,7 mg for 100 ml of blood.
What you should pay attention to?
You shouldn’t worry about lack of purines, because they are contained in almost all products. There are people, whose kidneys can’t excrete purines breakdown product – uric acid. As a result the level of uric acid in the blood increases and the so-called hyperuricemia emerges. This metabolic disorder is a genetic disease. If the increased level of uric acid is unnoticed for a long time and is not treated it will eventually provoke gout. At a certain concentration of uric acid crystals are formed, which can be deposited in the joints, under the skin and in the kidneys.
Usually a person gets about 800 mg of purines from the food. A gout sufferer shouldn’t get more than 100-150 mg of purines with the food. Products, containing 30 mg of purines for 100 g of a product are undesirable for gout sufferer. Canned meat and fish, sausage, smoked products, salty fish, cheeses, snacks and eggs contain a lot of purines. There are also many purines in such products as: brain, liver, meat of old animals, peas, beans, lentils, fried meat, fish, mushrooms, coffee, tea, cocoa, chocolate, spinach, sorrel, asparagus, rhubarb, Brussels sprouts, cauliflower, raspberries and cranberries. In spite of the popular misconception cabbage and tomatoes have practically no purines. When boiling products, half of the purines goes into the broth.
To reduce the risk of getting too much purines, you have to drink enough (1,5-2 liters daily). Besides, you should get enough vitamins, especially C and P, which help dissolution and excretion of uric acid from the body.
The results of modern research show that only the purines which turn into uric acid in the result of metabolism, can provoke gout. They are: adenine, guanine, xanthine and hypoxanthine. Other substances like caffeine, theobromine and theophylline contained in tea, coffee, cocoa and chocolate which also belong to purines are not dangerous in this way.
Most of purines are found in animal tissues with high metabolic activity (byproducts: liver, kidneys, veal thymus) and in quickly dividing cells (yeast).
High purine foods (mg/100 g):
Below you’ll find the information on purine content in products. Gout sufferers should avoid eating products with high purine content. Pay attention to the fact, that purine content is shown for 100 grams of product, so if 100 grams of tea contain most of all purines doesn’t mean you have to stop drinking it. You use only a couple grams of tea daily, which complies with 100-150 mg of purines. But you’d better not drink too much strong tea and coffee anyway.
|Animal liver||93,5||Leguminous beans||27|
|Lean pork||70||White mushrooms||18|
If your level of uric acid is increased you should eat products poor in purines. Purine content in products is given in milligrams of uric acid. Id case of low purine diet you should get not more than 500 mg of uric acid daily. Pay attention that purines contained in coffee, cocoa and black tea, do not split into uric acid!
Such products as potatoes, eggs, milk, dairy products, cheese, eggs, bread (white and black), buckwheat, millet, rice, pearl barley, oats, hazelnuts and walnuts, carrots, cabbage, apples, pears, plums, apricots, oranges, grapes, etc. are poor in purines. These products are recommended for gout sufferers.
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