When it comes to bananas, I believe everyone should be familiar with it, although bananas are a tropical fruit, but with the continuous development of transportation technology, bananas can be bought in almost all regions.
Bananas are relatively rich in nutrients, and even many people take bananas as gifts to visit relatives and friends or visit patients.
Nowadays, there are rumors on the Internet that eating bananas can help supplement potassium and help lower blood pressure, is there any scientific basis for such a statement? Is eating bananas good or bad for the human body?
First understand the nutritional content of bananas:
Bananas are cold and sweet, sweet flesh, high in nutrition and low in calories, containing phosphorus called the salt of wisdom, and rich in protein, sugar, vitamin A and vitamin C and dietary fiber.
Bananas contain a lot of carbohydrates, dietary fiber, etc.
The calorific value per 100 grams of pulp is 378 joules, so it is not advisable to eat more, otherwise you will gain weight. Banana pulp has high nutritional value, containing 1.2 grams of protein, 0.5 grams of fat, 19.5 grams of carbohydrates, 0.9 grams of crude fiber, 9 mg of calcium, 31 mg of phosphorus and 0.6 mg of iron per 100 grams of pulp.
3 hazards of potassium deficiency in the body:
1. Causes physical fatigue
If you find that you often feel weak in your body, have a feeling of inadequacy, and often want to sleep, even if you just got up in the morning, you want to go back to the bed to sleep again, and you always can't wake up.
I often feel dizzy and feel like I'm going to faint in the next second. In fact, these symptoms are mainly caused by the serious lack of potassium in the body, it is best to go to the hospital for examination to avoid delaying your health.
2. Musculoskeletal weakness
Potassium ions are the main cations that promote the normal rhythm and movement of skeletal muscles, and in severe potassium deficiency, muscle weakness of limbs and inability to move skeletal muscles can occur.
Therefore, patients with long-term hypokalemia may have obvious muscle group weakness, and even large areas of muscle atrophy in the limbs, resulting in periodic paralysis.
3. Blood pressure and arrhythmias
Potassium can maintain the normal myocardium, and when the body lacks potassium, myocardial function can also occur abnormalities, the most common is arrhythmia. In addition, it is also easy to cause an increase in blood pressure.
Long-term lack of potassium in the body can also cause nausea, vomiting or constipation. Such people can follow the doctor's instructions to reasonably supplement potassium to maintain blood pressure balance.
Can eating bananas replenish potassium and lower blood pressure?
Bananas are a common fruit in most families, bananas are cheap and nutritious, so men and women of all ages are very suitable for eating.
Bananas are rich in potassium, which prevents blood pressure from rising and muscle cramps, and also relieves tension. It plays an important role in the transmission of nerve impulses, the absorption of nutrients within cells, the excretion of waste products, and the balance of human cells.
Ma Diewei, a clinical dietitian from the Department of Nutrition of Shandong Provincial Hospital of Traditional Chinese Medicine, said that bananas can theoretically lower blood pressure, but in practice, the content is difficult to grasp.
It may be used as an adjunct to lower blood pressure, but it is by no means the only option, nor is it the best choice, and lowering blood pressure is still subject to formal treatment in the hospital.
Doctor reminds: These 4 types of people are best to eat less or not eat
1. People with cold physique
Because bananas themselves are cold fruits, people with cold physiques are not suitable for eating bananas. Such people often eat bananas, which may cause diarrhea, abdominal pain and other uncomfortable manifestations.
In addition, women with edema of the legs and feet during pregnancy are best not to eat bananas, which may aggravate edema. Women should also not eat bananas when they are menstruating, which may cause dysmenorrhea.
2. People with gastrointestinal discomfort
Bananas contain soluble dietary fiber, moderate consumption helps to moisturize the intestines, but bananas are cold, not suitable for people with gastrointestinal diseases, otherwise it will aggravate colds and aggravate gastrointestinal symptoms.
In addition, unripe bananas contain tannic acid, which fuses with dietary fiber and protein in the stomach acid environment, causing abdominal pain, stomach pain, nausea and vomiting and other symptoms. Patients with gastrointestinal discomfort are also not suitable for taking tannin fruits such as persimmons,
3. People with kidney function deficiency
If you do not know how to maintain the kidneys, it will lead to damage to the health of the kidneys, and even seriously affect the normal function of the kidneys.
For those with kidney dysfunction, it is best not to eat bananas, because insufficient kidney function itself can easily cause sodium and potassium imbalance.
The potassium content in bananas is relatively rich in potassium intake, which may further disturb the phenomenon of potassium imbalance in the body, and may cause hyperkalemia in severe cases.
4. People with diabetes
Banana is not suitable for people with high blood sugar levels and people diagnosed with diabetes, it is a fresh fruit with a strong blood sugar increase index.
The GI value of bananas reaches 30, which rises faster than eating glucose directly, and diabetics of course avoid it and eat less.
Extension: Attention! 4 foods should not be eaten with bananas
Taro is rich in protein, calcium, phosphorus, iron, potassium, magnesium, sodium, carotene, niacin, vitamin C, B vitamins, saponins and other ingredients.
Among the minerals contained, the content of fluoride is high, which has the effect of cleaning teeth, preventing caries and protecting teeth. Taro has high nutritional value but should not be eaten with bananas, eating together can cause bloating and poisoning.
Milk is a nutritious drink, it is suitable for drinking all year round, so people often drink it to supplement the nutrients in life.
But bananas and milk are both nutritious and not suitable for eating together. If eaten together, it may cause food poisoning, which is a serious health hazard.
Cantaloupe and banana eating together can lead to kidney failure and joint patients aggravation of the disease, cantaloupe sugar content is about 15%, potassium ion content is quite high.
Bananas are also rich in potassium, so people with kidney failure should not eat bananas and cantaloupe with high potassium content when they have little urine to avoid making things worse.
Because beef is a food with high protein content, if you eat bananas after entering the gastrointestinal tract, the tannic acid produced by bananas is easy to form opals with beef protein tuberculosis, which is very unfavorable to gastrointestinal absorption and even causes various gastrointestinal discomforts.
Extension: How to pick a good banana!
1. Look at the corners
When a ripe banana is ripe, the edges and corners will be relatively small. The fruit will be round and plump. If the banana is angular, it means that the ripeness of the banana is not enough.
Therefore, when choosing bananas, angular bananas are not as sweet as round bananas.
2. Touch the hardness
When we buy bananas, we can gently pinch the hardness of the banana with our hands, and the ripe banana is full of elasticity, soft and hard.
However, the unripe banana fruit is tighter and harder, while the overripe banana is particularly soft, and you can feel the fruit inside with a light touch. Therefore, when we choose bananas, we should choose the kind of banana that is soft and hard.
3. Look for small black spots on the skin of the banana
Naturally ripe bananas can be stored for a long time, generally can be stored for about 1~3 days, and will not produce small black spots. If the skin of bananas has produced small black spots, it is likely that these bananas have been sitting for a longer time.
We should not continue to buy this kind of banana, because bananas that have produced small black spots are easy to rot and spoil. At this time, if we buy it home and do not eat it as soon as possible, it is also easy to spoil.