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The tree of the walnut is a long-liver, it lives up to 400 – 1000 years. Fruiting at the tree begins 11-12 years after the beginning of growth, and the greatest yields it gives in 100-170 years. One tree gives from 10 kg to 300 kg of fruit.
Characteristic fruit of the walnut benefits and harm interested people since ancient times. The Greeks called them the acorns of the gods. They planted this tree in the orchards at the birth of children, believing that this will help make the baby’s body strong and instill in his soul faith and strength. Modern scientific researchers consider walnut to be the most useful of all kinds of nuts. But there are several reasons related to its properties, for limiting or refusing to use it.
The fruits, leaves and wood of this miraculous tree are used in many spheres of human activity. From its wood, furniture is made, and the leaves that produce phytoncids help fight disease-causing bacteria, repel insects. The benefits and harm inherent in the fruit of the walnut are constantly being studied. American scientists, analyzing the statistics of research for 30 years, summed up that lovers of walnuts and nuts in general die less of cancer, diabetes and vascular and heart diseases. For a good work of the heart and blood vessels, it is recommended to eat an average of 43 grams of nuts included in the “Mediterranean diet” daily. First of all, it’s walnuts, even hazelnuts and almonds. 7 pieces of walnuts a day for six months reduce the presence of “bad” cholesterol in the blood by 10% and increase the content of “good” cholesterol by 18%. The benefits and harm of walnuts are determined by their composition. The fruits of the walnut include more than 80 elements. These are fatty oils (up to 76%), proteins (up to 21%), carbohydrates (up to 7%), vitamins A, K, E, D, C, P, PP, tocopherols, B vitamins; selenium, zinc, magnesium, copper, iodine, iron, phosphorus, cobalt, calcium; a number of amino acids; Coenzyme Q10. Fatty oil consists of glycerides of oleic, linoleic, stearic, palmitic, linolenic acids. In 100 g of nuclei contains only 3-7 g of water. The remaining components are amino acids, protein substances, fats with acids, which play a therapeutic role in human metabolism. Unripe walnut fruits contain a lot of ascorbic acid (up to 10%). Walnut oil is the leader among vegetable oils in the content of fatty polyunsaturated acids (92%).