The strawberry
Nutritional directives recommend increasing the intake of fruits and vegetables to make the food diet healthier, and because of its preventive and curative benefits in both obesity and related chronic diseases such as cardiovascular diseases, diabetes and cancer , because these foods contain dietary fiber, vitamins, minerals and many phytochemical compounds (phytochemicals) that are good for health. Phytochemicals are defined as a large group of chemical compounds that are different from the nutritional elements. They are naturally present in plant foods and give them colors like red color in tomatoes. And other sensory Svatta such as the smell of garlic and in doing many jobs in the plants as they possess the capabilities in the prevention of diseases in humans.
Raspberries have many health benefits due to the nutrients they contain in vitamins, minerals and fatty acids, in addition to dietary fibers and many polyphenolic phytochemicals such as flavonoids, phenolic acids, lignans and tannins. strawberry has gained particular attention being one of the most general fruit special Altuteat commonly used, due to its entry in many industries like food: milk yogurt , juices, jams and jellies, this is in addition to the freshly ingested or detachment, and Mstkhalastha entered in recent years in the installation of some food supplements with other fruits and vegetables extracts and herbs, It is also newly defined as a functional food, because of the health benefits it provides beyond its nutrient content .
Strawberry composition
- Strawberry is considered one of the most fruits containing the essential nutrients, as it contains:
- Carotenoids, vitamin A , vitamin E and vitamin K.
- It is distinguished by its high vitamin C content, as it contains 60 mg / 100 g of fresh strawberries.
- It is also a good source of many other vitamins such as: thiamine (B2), riboflavin (B2), niacin (B2) and pyridoxine (B2).
- Strawberries are also distinguished by their high content of folic acid (folate), as each 100 grams of fresh strawberries contains 24 micrograms of folate.
- In addition, strawberries are distinguished by their manganese content.
- It is a good source of iodine, magnesium, copper, iron and phosphorus.
- It also contains fructose sugar and dietary fiber, and thus provides all the important functions that these nutrients provide in the body.
- In addition to the traditional nutrients, strawberries contain phytochemical compounds that are found mainly as phenol compounds and which have made them functional food, as these compounds gave strawberries:
- Its anti-inflammatory properties.
- Anti-oxidant.
- And low blood lipids (lipid).
- Anti-bacterial, anti-allergic, and antihypertensive .
- And resistance to the multiplication of cancer cells.
- In addition to the ability to neutralize the work of some enzymes and receptors to prevent many diseases that stimulate oxidation.
Flavonoids, specifically anthocyanins, which are found in the form of pelargonidin and cyanide derivatives, are the main type of polyphenol compounds present in strawberries, followed by ellagitannins (sanguiin-H-6), followed by flavon (quercetin and kaempferol-3-malonylglucoside), flavonols (catechins and procyanidins), and phenolic acids (caffeic and hydroxybenzoic derivatives).
The benefits of strawberries
Strawberry and anti-inflammatory
Inflammation occurs naturally when the immune system fights exotic organisms and injuries to the body from cuts, injuries, etc., but the constant stimulation of these processes or the irregularity of the immune system’s work in relation to inflammation causes an active inflammatory condition that plays a fundamental role in chronic diseases: such as heart disease, and vessels Bloody, Alzheimer's , and type II diabetes.
A study conducted on experimental mice with diet-induced obesity found an important role for strawberries in controlling blood sugar and regulating many aspects of general inflammation in the body that occur due to obesity . Another study conducted on experimental mice illustrated the role of strawberries in slowing the time of the clot that was created Stimulating its formation by laser wounding the artery, and it did so because of its effect on some inflammatory products that stimulate atherosclerosis, and another study found that giving strawberries to experimental rats reduces the nerve damage that they suffer when exposed to radiation.
In humans, there are not a large number of studies that are concerned with strawberries , but there are many more studies that examine the effect of berries and their components on health. For example, a study was conducted to clarify the effect of polyphenol compounds present in strawberries on indicators of inflammation and insulin response that occur after a meal. For this purpose, the test was conducted on 26 people with excess weights, where they were given a meal of high carbohydrates and medium-fat to stimulate acute inflammatory stress and stress. Acute oxidative stress, a group of them was given 10 g of strawberry powder dried by milling with a meal, while the other group was given a placebo, and the results of the study showed that eating strawberries has a direct effect in reducing the inflammatory response and reducing the amount of SolinThe detachment after the meal. The results of these and other studies show the effect of strawberries on fighting the active inflammatory condition that leads to many chronic diseases.
Strawberries and prevention of cardiovascular diseases
Scientific evidence supports the role of fruit and vegetable consumption in preventing many factors that increase the risk of cardiovascular disease, such as: obesity, high blood pressure, and type 2 diabetes. Several studies have found an inverse relationship between eating fruits and vegetables and the incidence of cardiovascular disease The role of strawberries in the prevention of cardiovascular diseases can be summarized by three effects, such as:
- Antioxidant.
- Antihypertensive.
- Anti-arteriosclerosis, and the following studies show these effects:
- Strawberry studies suggest the role of flavonoids as antioxidants in maintaining cell membranes from oxidation that contributes to cardiovascular disease. In a study of 23 healthy volunteers, strawberries were given for a month, and this resulted in lowering total blood cholesterol and bad cholesterol (LDL) Triglycerides and a number of free compounds that increase oxidative stress in the body, and strawberry intake reduces many of the processes that contribute to cardiovascular diseases, such as platelet aggregation and activation.
- In another study, it was found that eating 500 gm (test dose) of strawberries daily raised the level of antioxidants in the blood, especially the concentration of vitamin C. Also, it was found that strawberries improved the resistance of red blood cells to decomposition, and it was found that the anthocyanin extracted from strawberries and blueberries reduced From high blood pressure , as found in another study, that anthocyanins (60% extracted from strawberries and blueberries) reduce the risk of coronary artery disease and that consuming at least 3 portions per week of strawberries and blueberries reduces the risk of coronary artery disease.
Strawberry and metabolic syndrome
Metabolic syndrome is defined as having a person with at least three of the following conditions: intermediate obesity, insulin resistance, high blood pressure, high triglycerides in the blood, and a defect in bad cholesterol (LDL) relative to good cholesterol (HDL), and metabolic syndrome is associated with high inflammatory and oxidative indications Body fat. Raspberries have gained special attention in searching for their role in resisting this syndrome, as many studies have clarified the role of strawberries or anthocyanins extracts in reducing blood sugar in obesity and diabetes cases, and strawberry extracts have also found a similar role to the enzymes that digest carbohydrates and fats, which explains their ability to Control blood sugar and blood pressure and improve cases of metabolic syndrome.
In an experiment conducted on 27 people with metabolic syndrome, 50 g of strawberry powder dried by strawberries (equivalent to 500 g of fresh strawberries) were given daily, resulting in a decrease in total blood cholesterol and bad cholesterol (LDL) and mundialdehyde (a measure of oxidative stress) Small molecules of bad cholesterol, which improves the metabolic syndrome in obese adults, and other experiments have found a strawberry effect in reducing high blood sugar and [[what is insulin syndrome | insulin]] blood after meals.
It can be concluded from the above that strawberries have a positive effect in fighting metabolic syndrome and in preventing type 2 diabetes , and it may be beneficial to be consumed abundantly by people who have susceptibility or risk of developing them.
Strawberries and their preventive and curative role in cancer
Strawberries are characterized by anticancer and antioxidant properties and protective effects of genes , and these characteristics have been demonstrated in studies of many types of cancer cells in humans and in-vitro studies, and in studies in in-vivo studeis However, studies inside the body looking at the effect of strawberries on cancer in the human body are still limited and more studies are needed to support their results. In strawberries, there are many polyphenol compounds that have anti-cancer properties, and they increase the action of some chemical treatments.
The role of strawberries in cancer resistance is explained by its ability to detoxify some carcinogens, get rid of active oxygen compounds , reduce oxidative damage to DNA, and reduce the proliferation of cancer cells by stimulating their death and stopping their cleavage cycles, and stopping the formation of nutrient vessels for them , In addition to other mechanics.
In a study of oral cancer stimulated by chemicals in experimental animals, it was found that strawberries reduce tumor formation and signs of inflammation and proliferation of cancer cells , and in a study conducted on humans, eating some flowering plants, including strawberries, was associated with a lower risk of esophagus, head and neck cancer, as well as In another study of people with cancerous ulcers in the esophagus, it was found that eating strawberries at a dose of 60 g per day for 6 months was able to prevent the development of these cancerous ulcers.
For colon cancer, a study was conducted in experimental mice and found a positive effect of strawberries on many indicators of cancer development, while a large study was conducted in humans to demonstrate a simple relationship to strawberries while reducing the risk of colon cancer . In experimental rats, strawberry water extracts were found to be able to inhibit the growth of tobacco- stimulated lung tumors , as they prevented pulmonary emphysema, liver degeneration, weight loss and gene dysfunction, and methanol strawberry extracts were able to stop breast cancer in modified trial rats. Genetically to stimulate breast cancer.
Strawberry and neurological diseases
A study conducted between 1980 and 2001 found a correlation between eating strawberries and blueberries in high quantities with a slow decline in cognitive abilities, and many studies found a role for strawberries in fighting mental retreat with age, and one of the substances found in strawberries ( Alvesatin) properties that antidepressant in mice, and found that it increases the secretion of serotonin and norepinephrine, which indicates the possibility of taking Alvesatin as an antidote natural antidepressant , and found one study role of Vecetin in the fight Huntington disease which is characterized by decline in cognitive abilities in addition to symptoms Psychological and motor that gets due to the death of brain cells, a disease that has no cure to this day, and can therefore strawberries play a role in controlling the disease.
In addition to the benefits of strawberries mentioned, strawberries can help treat some types of anemia due to their high content of folic acid, iron and other nutrients, and they are considered a low calorie food and suitable for a weight loss diet . Despite the endless benefits of strawberries, some people suffer from allergies to this fruit and all that it contains, such as some types of sweets or drinks, and it should be avoided completely in these cases.
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