Chemical composition of pear, calorie content and its health benefits and harms
Pear is the queen of fruits. It is low in calories, has almost no contraindications for consumption, and contains many elements and vitamins necessary for the body. Why are these fruits so beneficial, and are there any pitfalls when consuming them? You will learn about this and much more in our article.
Calorie content of pear
Calorie content and ratio of BZHU vary depending on the variety. Let's consider the composition and calorie content of the most popular ones.
Variety | Kcal content per 100 g | Glycemic index | Proteins, fats, carbohydrates (BJU), g |
Bartlett | 63 | 30 | 0,4*0,2*11,9 |
Chinese | 42 | 24 | 0,5*0,2*10,7 |
Conference | 42,9 | 24 | 0,4*0,3*10,3 |
Vitamin content:
- copper – 7.8 mcg;
- silicon – 6 mg;
- manganese – 0.037 mg;
- iron – 0.19 mg;
- phosphorus – 11 mg;
- magnesium – 6 mg;
- calcium – 9 mg;
- zinc – 0.08 mg;
- potassium – 101 mg;
- vitamin C – 4.4 mg;
- vitamin K – 3.8 mcg;
- vitamin PP – 0.164 mg;
- vitamin E – 0.12 mg;
- vitamin B6 – 0.026 mg;
- vitamin B5 – 0.042 mg;
- vitamin B4 - 5.1 mg;
- vitamin B1 – 0.012 mg;
- vitamin B2 – 0.026 mg.
How many calories in 100 g
When preparing a diet It is important to understand the calorie content of 100 g of product, as well as the average weight of fruits and vegetables.
In a whole fresh pear
Depending on the pear variety weighs from 100 to 180 g, the average weight of the fruit is about 130 g. Larger specimens are also found. The average calorie content of a fruit is 55 kcal.
In juice
Freshly squeezed pear juice contains about 45 kcal per 100 g, clarified - 46-50 kcal.
In processed fruit
When a fruit is processed, its calorie content and nutritional value changes. So, per 100 g of dried pears there are 201 kcal, baked fruit contains 179.8 kcal, dried - 249 kcal.
Canned pears contain on average 65 kcal. Per 100 g of pear jam there are 214.6 kcal, jam - 211.7 kcal, jam - 215 kcal. Pear marshmallow can contain 300-320 kcal.
Is it possible to eat pears when losing weight on a diet?
Pear is a fat-burning fruit. Despite its pronounced sweetness, it does not contain many calories, and the high fiber content inhibits the absorption of carbohydrates and stimulates the work of the small intestine.
The high content of microelements and vitamins normalizes metabolism, improves the condition of hair and skin, restores the proper functioning of the digestive tract, and has a beneficial effect on the endocrine, circulatory and nervous systems. Folic acid in pear supports the immune system, stimulates the production of bile and leukocytes.
Important. For more complete absorption of nutrients, nutritionists recommend eating pears in the morning after breakfast. Evening consumption irritates the intestines and leads to congestion.
Benefits and harms
Like any product, pears have positive and negative aspects of consumption.
Some of the characteristic advantages include:
- low calorie content;
- high fiber content;
- normalization of metabolism;
- normalization of the gastrointestinal tract;
- increasing the functionality of the liver and kidneys;
- increasing the body's resistance to infections;
- reduction of inflammatory processes in the body;
- restoration of the hematopoietic system;
- strengthening vascular walls;
- normalization of blood sugar levels;
- reduction of swelling;
- reducing the risk of developing cancer;
- increased hemoglobin levels;
- restoration of the menstrual cycle in women and increase in potency in men;
- reducing the risk of developing premenstrual syndrome and combating its manifestations.
Despite the extensive list of advantages, there are also significant disadvantages:
- pronounced diuretic effect;
- allergic reactions;
- strong stimulation of digestion;
- dyspeptic symptoms – nausea, vomiting, diarrhea, bloating;
- can cause fermentation in the intestines when consumed with fatty meat, smoked meats and fermented milk products;
- Contraindicated for certain diseases of the gastrointestinal tract.
How to choose and store correctly
To get the maximum benefit from a fruit, it is important to select and store it correctly. In stores you can most often find unripe pears that need to lie down and ripen. They are kept for several days at room temperature - then they gain maximum benefit.
When choosing, be sure to pay attention to the following characteristics:
- there should be no black spots, dents or cracks on the skin;
- a good pear has a subtle pleasant aroma, too strong an aroma is a sign of spoilage of the fruit;
- the surface should not have a greasy coating or shine - a normal pear has a matte, somewhat waxy coating;
- the stalk is soft, elastic, does not break when you try to bend it, brittle and dry indicates an old fruit.
Pears are stored in the refrigerator in paper or plastic bags with pre-drilled holes. It is not advisable to store more than 0.5 kg of fruit in one bag. In this state, the fruit can be stored for up to a month.At room temperature, it can be stored for a short time in boxes with holes for better ventilation - up to two weeks.
For long-term storage, the fruit is placed on glazed balconies, having previously wrapped each one in paper or parchment. In this state, the fruits can be stored for up to three months.
Reference. Pears tolerate freezing well in any form, the main thing is to defrost them correctly.
Consumption norms per day
The norm for an adult is 1-2 fruits per day. More is allowed, however, when consuming such a number of pears, the volume of absorbed nutrients decreases in proportion to the quantity. Children can be given fruit slices from one and a half years old; from 8-10 months they can be given fruit in the form of puree.
Reference. For children under one year of age, pear is administered with great caution to avoid allergic phenomena. Starting from 1 tsp. purees per day, gradually increase consumption.
Contraindications
Like any product, pear has its contraindications for consumption:
- allergic reactions;
- exacerbation of gastrointestinal diseases;
- old age - with caution;
- peptic ulcer of the stomach and duodenum.
For diseases of the gastrointestinal tract, pears are allowed for consumption only with stable remission lasting more than one year.
Conclusion
Pears can and should be used by people of any age. They provide a wide range of positive effects for the body - improve the functioning of the gastrointestinal tract, nervous and immune systems, help fight the manifestations of depression and premenstrual syndrome. Consuming in moderation will “sweeten” the diet for those on diets.