What changes in the body occur when eating ‘grapes’, the seasonal food in August?

[사진= 국립농업과학원]

These days, the number of grapes in each store is increasing noticeably. There is a record that grapes, the representative food of August, began to be widely cultivated in Korea from the 1400s during the Joseon Dynasty. Our ancestors, who had little to eat, survived the hot summer through grapes and maintained their health. After the 1900s, foreign grapes were introduced and the variety increased significantly. Grapes contain various nutrients such as vitamins, potassium, and calcium. It depends on the individual, but eating grapes is beneficial to health. Let’s find out about the health effects of grapes for reference according to each person’s body condition.

◆ Inhibits the formation of blood clots that block blood vessels.. Because of ‘this component’

According to the food information of the National Academy of Agricultural Sciences, the flavonoids in grapes help prevent arteriosclerosis, heart disease (angina, myocardial infarction), and stroke (cerebral infarction, cerebral hemorrhage) by inhibiting the formation of blood clots that block blood vessels. Data from the National Institute of Horticultural and Herbal Science also states that grapes act as ‘vasodilators’, reducing the possibility of cardiovascular diseases such as heart disease and stroke. In particular, the ingredient resveratrol makes a big contribution. It is a substance produced by plants for self-defense and helps to wash away waste products stuck in human blood vessels. It is good for removing bad cholesterol and can have an effect on blood vessel health.

◆ Vascular disease increasing in heat wave.. Grape + exercise effect

If you sweat a lot due to a heat wave, the blood concentration becomes thick, creating an environment where blood clots can form. A blood clot can block a coronary artery and cause myocardial infarction. Summer is the season with the most hospital visits for vascular diseases of the year. Eating grapes regularly and exercising helps prevent-management of vascular disease. Exercise can be effective in preventing thrombosis by lowering the viscosity of the blood, improving blood circulation and affecting the function of platelets.

◆ When grapes enter the body.. Helps detoxify carcinogens

Grapes, like other vegetables-fruits, are rich in antioxidants that slow the aging process and damage the body. According to the cancer information of the National Cancer Information Center, anthocyanin, lycopene, and resveratrol in grapes are effective in detoxifying carcinogens that cause cancer in the body. Inflammation can prevent the development of cancer. Data from the National Academy of Agricultural Science also show that resveratrol in grapes has anticancer effects.

◆ Relieves fatigue and improves vitality.. Role of ‘comprehensive nutritional supplement’

Grapes contain vitamins such as vitamins C, B1, B2, and E, as well as various nutrients such as calcium, potassium, and iron. It helps to relieve fatigue and increase vitality of the body tired from the heat wave. Grape vitamins and calcium are also good for preventing osteoporosis through the interaction to help absorption. Natural foods are safer than nutritional supplements made in factories. Grapes can act as a ‘natural comprehensive nutritional supplement’.

◆ Grape skins and seeds are good. Who should be careful with grapes?

According to a paper in the Journal of the East Asian Dietetic Association, it was revealed that grape skin extract, which is enriched with various physiologically active substances, has potential as a natural anticancer substance by inhibiting proliferation and inducing apoptosis of breast cancer cells. There is also a paper that the antioxidant-anticancer effect of grapes and polyphenols that lower blood cholesterol levels were counted as 1439mg seeds, 239mg skins, and 20mg kernels based on 100g of grapes.

When checking blood sugar, it is good to refer to the glycemic index (GI). Eating fruits with a high glycemic index raises blood sugar quickly, whereas fruits with a low glycemic index raise blood sugar slowly. Although watermelon (72) has a high glycemic index of fruits and vegetables, grapes (46), peaches (41), and apples (36) belong to low-glycemic index foods. Because grapes contain potassium, people with bad kidneys (kidneys) should be careful. This is because there is a risk of developing an arrhythmia, which is an irregular heartbeat.

What looks like white powder of grape kernels is not a pesticide, but rather the grape sugar leaking out of the skin and hardening. As for domestic agricultural products, the government regularly manages the residual amount of pesticides, so it is not cause for concern. Wash grapes well in water mixed with vinegar or baking soda and then wash again under running water to eat the skins.

Reporter Kim Yong-eok [email protected]

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