Garlic, known as "guardian of health", is a valuable food. The first research on garlic was carried out in German. There almost everyone likes to eat it, with a consumption of 8,000 tons every year. 

There are more than 400 healthy substances. If you want to live to 90 years old, garlic is the essential part of your diets. According to researches, the value of garlic may be higher than ginseng.

Garlic keeps cardiovascular diseases away. Researches show that many diseases are caused by the high level of blood fat. Many daily foods such as eggs, sausages, cheeses and bacons can increase the blood fat significantly. But if you eat garlic, the blood fat can be reduced.

Besides, smoking and drinking alcohol can also increase the blood stickiness but garlic can dilute the blood. What’s more, garlic is , just like vitamin E and vitamin C.

Thus, we can see garlic can prevent heart diseases. What’s more, it can reduce the high blood pressure. If people with high blood pressure eat several pieces of garlic and drink two spoons of vinegar every morning for half a month, they can have a lower blood pressure. Experts say that eating garlic every morning can kill bacteria and extend people’s life.

Raw garlic is better than cooked one. Garlic has so many functions because it has alliin and allinase. These two substances stay at raw garlic respectively. Once you smash the garlic, these two substances react to produce a colorless fluid- allicin which can kill bacteria significantly. But it will lose its function once heated. Thus, it is better to eat raw garlic.

In German, there is ice cream, jam, white spirit made of garlic. They not only taste delicious, but also are healthy for the bodies. The garlic oil refined from the allicin also has high value of nutrition.

But we should pay attention to not eat too much garlic as it can influence the absorption of vitamin B. What’s more, it irritates the eyes, and may cause oculoglandular conjunctivitis. And we’d better not eat garlic when the stomach is empty, or when we have headache, cough or toothache.

As we know, many people are afraid to eat garlic because they will have a bad breath after eating it. In fact, you can drink a cup of coffee, milk or green tea to remove the bad breath. Or you can chew some cachou or green tea leaves.