The nut is a nut that is not in the daily diet everything it should. It has a high nutritional value and multiple health benefits. Cultivation.

The nut is the fruit of Juglans regia, scientific name of the most widespread species of walnut tree native to Persia and the Caucasus, has been cultivated since ancient times, through Greece and Rome, in central and western Europe. Is introduced in America in the seventeenth century. In the wild, walnut grows only in some areas of southern and southeastern Europe. In the Iberian Peninsula is widely distributed because of their culture.

Walnut plantations whose final destination was timber production have traditionally existed in the entire Mediterranean basin, as well as walnut bear fruit for a number of years was cut down and exploited for its timber. Spain was before the 50’s, a country with lots of Juglans regia L. who was considered exporting walnut, very present in all areas of the peninsula and adapted to different media conditions.

nuts-benefits

Nutritional value of walnuts

Studies have shown that nuts, particularly the hard shell, are very nutritious food and good health, especially for heart health .

· Calories: 688
· Protein : 14 g
· Fat: 59 grams
· Carbohydrates: 4 g
· Fiber: 5 g
· Vitamin E: 2.92 mg
· Phytosterols: 72.0 mg
· Calcium: 94 mg
· Cholesterol: 0 mg
· Also nuts are high in: polyunsaturated fatty acids, vitamin A, B1, B6, folic acid and magnesium.

Benefits for health nuts

Walnut consumption brings many benefits to the body through its high protein, B vitamins, essential amino acids such as lecithin and oils in the form of omega 3 fatty acids.

· The nut is a food taken daily reduces cholesterol levels and promotes circulation and red blood cell production.

· It is a stimulant to the nervous system and intellectual activity.

· Its high calcium content is an excellent food to prevent osteoporosis.

· Past studies suggest that regular consumption of these nuts can reduce the risk of cardiovascular disease, and certain types of cancer and type 2 diabetes.

· A handful of walnuts contains almost twice as much antioxidants as an equal amount of other hard-shelled nut consumed more than the walnut.

· Dr. Vinson found that walnuts not only contain more antioxidants than other nuts, but also contains antioxidants that are much more powerful and potent.

· But as noted by Dr. Vinson, “Walnuts contain polyunsaturated and monounsaturated fats, which are ‘good fats’, and do not contain harmful saturated fats that can cause narrowing of the arteries.”

Types of nuts :

· California walnut: is the most common.

· Black walnut: from eastern America.

· Walnuts or ashy gray: originally from North America.

Cultivation of walnuts

In the world there are about 560,000 hectares planted with walnut, that by the end of 2006 produced a total of 1.66 million tons. In the early 90s the planted area increased by 36%, which explains to some extent the expansion experienced production from 2002. Therefore, over the 90 world production of walnuts rose from 1.09 million tonnes to around 1.14 million tonnes in 1999. The main countries that account for over 50% of world production are China, United States and Iran.