History attributes many properties to garlic, and most of them are proven by scientific means. Conceivably garlic is the vegetal medicine with the most scientifically established properties.

The complete plant, but especially the bulb contains alliin a (a sulphured glycoside), and enzyme (alliinase), vitamins A, B1, B2, C, and niacin (a vitamin of the B group). Alliin does not smell, but by the action of alliinase, which releases and acts when garlic is crushed, it is altered first into alliicine, and then into diallyl disulphide (the genine of the glycoside), which are the most important active principles which give garlic its typical smell.

Alliin and diallyl dysulphur are highly unstable substances, which melt quite easily into liquids and gases. When transported by the blood, they infuse all tissues and organs of the body. Thus they act on the whole body, though more powerfully on the organs through which they are eliminated: Bronchi and lungs, kidneys, and skin.

In high doses, garlic produces a decrease in blood pressure, both highest and lowest. It has vasodilating effects, and is recommend for people suffering from hypertension, arteriosclerosis, and heart dysfunctions (angina pectoris or heart attacks).

Garlic helps with anticlotting of platelets (prevents an excessive tendency of platelets to group, forming clots), and fibrinolytic (disintegrates fibrin, the protein that forms blood clots). This makes garlic highly recommended for people suffering from thrombosis, embolism, or vascular accidents due to the lack of blood flow.

It decreases the level of LDL cholesterol (bad cholesterol) in the blood, because it makes its absorption by the intestine more difficult. It has been proven that in the hours following a breakfast of toast with butter, the level of cholesterol increases 20%, however when the bread is rubbed with garlic, even if it has butter, this increase does not take place.

Since it normalizes the level of sugar in blood, it is a must for people suffering from diabetes, and obesity.

Garlic is also an antibiotic and antiseptic. It is proven to be effective against the following micro-organisms:

- Escherichia coli, which causes intestinal dysbacteriosis and urinary infections.

- Salmonella typhi, which causes typhoid, and other Salmonella genus that cause severe intestinal afflictions.

- Shigella dysenteriae, which causes bacillus dysentery.

- Staphylococcus and streptococcus, which causes furuncles (infected blemishes) and other skin infections.

- Diverse types of fungi, yeasts, and some viruses, such as herpes. The active principles of garlic are supposed to interact with the nucleic acids of the virus, thus limiting its proliferation.

The bacteria-killing powers of garlic inside the intestine are vigilant with bad bacteria, respecting the normal bacteria, for which it is good. This makes garlic better than most known antibiotics, since it regulates good intestinal bacteria instead of destroying it all.

Its use is recommended:

- In diarrhea, gastroenteritis, and colitis.

- In salmonellosis (intestinal infections usually caused by spoiled food.

- In intestinal bacterial imbalance (alteration of microbial balance of the intestine) often caused by the use of antibiotics.

- In fermentative dyspepsia, which cause flatulence in the colon.

- In urinary infections (cystitis and pyelonephritis), often caused by Esterichia coli.

- In diverse bronchial affections (acute and chronic bronchitis), because when the dysulphur of allyl is liberated through the breath, it acts directly on the bronchial mucous membrane. It is also an expectorant and antiasthmatic.

Garlic stimulates the activity of the defensive cells of the body, both lymphocytes and macrophages. These cells, which flow with the blood, protect us from microorganisms, and furthermore they are able to destroy cancerous cells, at least in the initial phases of tumor formation. Garlic is now used with some success as a complement in the treatment of AIDS.

It is also active against ascarides and oxyuridae (little white worms that provokes anal itching in children). The most frequent types of intestinal parasites.

It also prevents malignant tumors especially digestive cancers. This is likely due to its regulating action on intestinal bacteria, and normalizing action on the digestive function, though this may be related to its effects on the set of chemical reactions of the body (metabolism). Remember we only recommend it as a preventative substance.

Garlic is also widely used as a corn remover. Applying a piece of garlic mashed onto a callus, covering it with a plaster (Band-Aid). Within two or three days, the corn will soften and its inflammation will reduce, thus allowing easier extirpation.