A banana can prevent many diseases. Little-known benefits of bananas you should know. We all know that bananas can relieve constipation, are high in calories, and their aromatic scent can improve mood. What are the lesser-known effects of bananas? What should we pay attention to when eating bananas?
1. Improve depression: Tryptophan in bananas can be converted into serotonin in the human body, which helps relax the body, improve mood, and relieve depression.
2. Relieve premenstrual syndrome: Vitamin B6 in bananas can regulate blood sugar levels and relieve various premenstrual symptoms.
3. Regulate blood pressure: Bananas are high in potassium and low in sodium, which can effectively regulate blood pressure levels. The U.S. Food and Drug Administration has allowed the banana industry to advertise the blood pressure-lowering and stroke-prevention effects of bananas in its advertisements.
4. Improve brainpower: A British study of 200 students found that eating potassium-rich fruits like bananas helps improve students' attention, learning efficiency, and academic performance.
5. Prevent constipation: Bananas are rich in dietary fiber, which helps restore intestinal function and naturally relieve and prevent constipation without the aid of laxatives.
6. Relieve hangovers: One of the best ways to relieve drunkenness is to drink a banana honey smoothie. Bananas have a stomach-protecting effect, honey can boost blood sugar levels, and milk helps relieve dehydration after drinking.
7. Prevent heartburn: Acid reflux can easily lead to heartburn, and eating a banana can relieve the discomfort.
8. Prevent morning sickness during pregnancy: Pregnant women eating a banana between meals can help prevent morning sickness.
Contraindications for eating bananas:
1. Do not eat bananas on an empty stomach
We say bananas can be a substitute for a meal, but you should not eat a large amount of them on an empty stomach. Because bananas contain a large amount of potassium, phosphorus, and magnesium, for a healthy person, a large intake of potassium and magnesium can disrupt the balance of sodium and calcium in the body, which is not good for your health. Therefore, you should not eat too many bananas on an empty stomach.
2. Eating too many bananas can cause an imbalance in trace elements
Bananas are a delicious and fragrant fruit, so some people eat a large amount at once. Little do they know that this is very unhealthy for the body. Bananas contain relatively high amounts of elements like magnesium and potassium. Although these mineral elements are essential for human health, if too much is consumed in a short period of time, it will cause a sharp increase in the levels of magnesium and potassium in the blood, leading to an imbalance in the proportions of elements such as potassium, sodium, calcium, and magnesium in the body, which is harmful to health. In addition, eating too many bananas can also cause a significant decrease in gastric acid secretion, leading to gastrointestinal dysfunction and excessive emotional fluctuations. Therefore, bananas should not be eaten in excess.
3. Bananas should not be stored in the refrigerator
Everyone knows that bananas are picked when they are six or seven ripe because they ripen quickly. If they are picked when fully ripe, they don't taste good and don't look fresh. After being picked, bananas require a relatively high storage temperature, generally 11-13°C, while the temperature for storing fruits and vegetables in a refrigerator is usually around 4°C, with a maximum of 8°C. If bananas are placed in this environment, they are easily frozen. They will turn black after one day, become soft and mushy, their texture will deteriorate, and they may even develop spots or rot.
Eating bananas has its rules. Bananas contain a lot of magnesium and potassium, and eating them on an empty stomach can have adverse effects on your health. It is recommended to eat a banana after a meal, or eat something else first before having a banana. You can eat a moderate amount of bananas, but not too many.