Blueberries are not only sour and sweet, but also rich in fruit acids and anthocyanins, which are effective in anti-cancer and beauty treatments. Some researchers pointed out that there is a special component in blueberries. Long-term consumption of large amounts of blueberries can improve the blood pressure-lowering effect, while other fruits and plant extracts do not have such an effect.

Four major effects of blueberries:

Prevent cancer: The anthocyanins in blueberries can inhibit the growth of tumor cells. Eating half a cup a day can achieve anti-cancer effects.

Prevent and treat constipation: 1 cup of fresh blueberries contains approximately 4 grams of dietary fiber, accounting for 14% of the daily intake of dietary fiber. The water-soluble dietary fiber in blueberries can promote intestinal peristalsis and prevent constipation.

Good for heart health: Blueberries contain ingredients that can help dilate blood vessels, thereby reducing the risk of blood clots and heart disease. Studies have found that eating more than five servings of blueberries per week can reduce the risk of heart disease.

Lower blood sugar: Eating blueberries for diabetics helps regulate blood sugar levels. Eating 5 servings of low-glycemic index fruits such as blueberries per week for two months can significantly improve blood sugar regulation.

How to make homemade blueberry jam:

Ingredients: 500 grams of blueberries, 250 grams of rock sugar

Method:

1. Use blueberries Rinse with clean water. When cleaning, be careful not to rub hard or break the skin;

2. Put the blueberries and rock sugar into the pot together, stir slowly over low heat, and let the rock sugar cook slowly.

3. Simmer over low heat, skim off the scum in the middle, and simmer until the jam is thick to the condensation point, seal it in a clean container, and store it in the refrigerator for better taste.

Note: Blueberries are cold, so most people will not get angry if they eat more blueberries.

However, those with stomach problems, especially those with cold stomach or cold body, should try to eat less. In addition, those with excessive stomach acid should not eat too many blueberries.

Fresh blueberries have a slight diarrheal effect, so do not eat them until the diarrhea is cured.

Blueberries contain oxalates. Patients with kidney or gallbladder disease, especially those with uncured kidney stones and gallstones, should avoid consuming too many blueberries, which may be harmful to the body. If the above situation does not exist, the average person will benefit greatly from eating more blueberries.

What are the effects and functions of blueberries

1. Protect eyes and enhance vision

The anthocyanins in blueberries can promote the regeneration of rhodopsin in retinal cells. "It can prevent severe myopia and retinal detachment, and improve vision." It also has the ability to accelerate the regeneration of rhodopsin, which is indispensable for good vision.

2. Enhance your own immunity

Blueberries can enhance the body's resistance to infectious diseases. Blueberries are also a high-fiber food and contain a lot of potassium, which can help maintain normal fluid balance in the body. Blood pressure and heart function, but the calories are only 80 calories. Blueberries are closely related to fighting free radicals, especially reactive oxygen species, which are closely related to various diseases such as cancer, innate immune system diseases, and cardiovascular diseases.

3. Antioxidant function, slow down aging

Natural blueberry anthocyanins are the most effective antioxidants. Among more than 40 kinds of fruits and vegetables that people often eat, blueberries have the strongest antioxidant capacity. .

4. Enhance memory

Blueberries have extremely high antioxidants among all fruits and vegetables, which can improve brain power and reduce Alzheimer's disease. Scientific dietary requirements Anthocyanins, which help delay aging, improve short-term memory, and improve balance and coordination in the elderly.

5. Anti-cancer function

Contained in blueberries. Nutrients have an inhibitory effect on early-stage cancer. The anthocyanins in blueberries are very powerful antioxidants that can help prevent the formation of plaque in arteries and various cancers, and reduce the possibility of cancer.

Blueberries are used in jellies, jams and pies, and are also added to baked muffins. They are an ingredient in many snacks and dishes and are flavored with artificial blueberries, which actually do not contain real blueberries. Ingredients.

Blueberry jam is a jam composed of blueberries, sugar, water and pectin.

Commercially packaged jams often contain chemical preservatives such as citric acid. The top-quality blueberry jam is produced in Canada and the United States and uses wild blueberries. They are smaller in size and difficult to harvest, but the taste is better than cultivated blueberries and more intense. The main producing areas are Maine in the United States, northwest Ontario in Canada, and the Lake St. John region of Quebec.