Medicinal plant used against atherosclerosis and against hypertension, generally presented in the form of capsules or tablets.


Name in Portuguese: garlic, common garlic, black garlic
Below, read more about black garlic
Binomial name: Allium sativum L.
There are several varieties of garlic.
French name: ail
English name: Allium, Garlic
German name: Knoblauch
Italian name: aglio


Liliaceae Note: In the same family as garlic, onion
is also found .


Sulfurized volatile oils (alliine, allicin), sulfur, selenium

parts used

Bulb or husks


Antibacterial, antibiotic, antimycotic, hypolipidemic (lowers the rate of bad cholesterol: LDL and increases the good: HDL) hypotensive (vessel dilation), platelet aggregation inhibitor, expectorant.
Garlic acts as an antibacterial against different strains that lead to diarrhea, such as Salmonella, Escherchia coli, Entamoeba histolytica and Giardia lamblia .


Internal use (tablet, capsule, syrup):
– Hypertension , cholesterol , prevention of heart problems, gastrointestinal problems, insect bites (prevention through the repellent effect of garlic), bronchitis , cough , sore throat , urinary stones, colorectal cancer , lung cancer ,  diarrhea (due to its antibacterial effect).

Warning hypertension and cholesterol problems are serious, garlic can be a complementary measure, but it is not a first choice treatment, consult a doctor.

External use:
– Warts , inflammation of the ear (otitis) , pinworms, wounds and mycoses.

Secundary effects

Bad breath , in high dosage, possible gastrointestinal effects.


we do not know


Possible interaction with warfarin (anticoagulant molecule). Although we are not aware of any cases, garlic can increase the effect of warfarin and lead to possible bleeding. Possible interaction with certain medicines against diabetes (risk of developing hypoglycaemia).

Garlic-based preparations

– Garlic tablet (against high blood pressure and cholesterol)

– Garlic capsule (in the form of garlic oil) or garlic capsule (against high blood pressure and cholesterol)

– Garlic syrup (against cough)

– Garlic peel (against sore throat)

– Garlic against cold sores

–  garlic oil

Where does garlic grow?

Garlic grows in different parts of the world (Europe, America, Asia). The garlic harvest is done in Europe and North America, mainly in July and part of August.
You should know that white garlic does not grow in nature, therefore it must be cultivated. It is believed that garlic was first cultivated over 7000 years ago.

plant it yourself

Garlic develops its bulb in the first year of cultivation; in the second season the plants emit their inflorescences (flower). Garlic grows in all good soil, but it does not like fresh manure. Growing in pots is not recommended.


– An unpleasant effect of garlic can be the appearance of a bad odor, this odor can sometimes come out through perspiration, through the nose or through the mouth. Unfortunately, drugs that claim to have no odor effect are not effective. Therefore, it is the molecule responsible for the efficiency that causes the typical odor of garlic.

Effect on hypertension and excess cholesterol

– Garlic is a very studied plant, according to clinical studies, this plant has real effectiveness against cardiovascular diseases and in particular in the prevention of hypertension and cholesterol problems. We can consider garlic as a “super food”. A special edition of the French journal Science & Vie on medicinal plants published in July 2020 estimated that the effect of garlic against hypertension and excess cholesterol was likely, but not proven. Several studies and reviews were analyzed by Science & Vie to reach this conclusion. For example, the US National Center for Complementary and Integrative Medicine considers the evidence weak, according to Science & Vie .

black garlic

– There is also black garlic, which is common or white garlic (Allium sativum L.) heated to high temperatures. The advantage of black garlic is that it doesn’t lead to bad breath like white garlic. According to some studies published in 2015, black garlic has medicinal properties similar to white garlic, but further research is needed to better understand its properties. Black garlic is obtained by heating white garlic bulbs at a high temperature for weeks or months. As it is heated, unlike white garlic, black garlic no longer contains allicin. In contrast, black garlic contains S-allyl cysteine ​​(SAC), SAC is an antioxidant that is also found in white garlic.
Black garlic is used particularly in Asia.

– Garlic has been consumed for its therapeutic properties for over 5,000 years. During World War I, garlic was used externally as an antiseptic to treat some war wounds.

– Allicin is an important substance in garlic, with antioxidant effects and notably a preventive effect on cancer. It is an organosulfur compound.

For a preventive effect on health, it is advisable to eat a clove of garlic every day, if possible raw (for example in a salad) or if cooked, it should not exceed a cooking temperature of 60°C, to avoid losing its properties. properties. If garlic is eaten raw, it is recommended to cut it finely, and then wait 5-10 minutes before consuming it, since during this period a maximum release of allicin is observed.

– According to a Chinese study, eating garlic every day reduces the risk of lung cancer by 44% . Among smokers, the risk was reduced by 30%. The study involved 6,000 people and was carried out by the Center for Control and Prevention in Jiangsu Province, China.

– In 1858, in France, the chemist and microbiologist Louis Pasteur was the first scientist to document the ability of garlic to inhibit bacterial growth. To reach these conclusions, Louis Pasteur placed garlic cloves in a Petri dish full of bacteria. A few days later, he observed bacteria-free zones around each garlic clove. This research marked the beginning of thousands of studies later published on garlic, one of the most studied medicinal plants in the world.
However, it should be noted that garlic does not have such powerful bactericidal effects as chemical antibiotics (antibiotic drugs). Garlic is like penicillin, a broad-spectrum antibiotic, in other words, it works against numerous types of disease-causing bacteria. In this day and age, when an increase in the number of antibiotic-resistant bacteria is observed, garlic could eventually become an alternative to (chemical) antibiotics.

– In traditional Chinese medicine, garlic was used mainly at the beginning of our era against digestive problems.

– In the Middle Ages, garlic was cultivated in the medicinal plant gardens of monasteries. Garlic was used at this time especially against various digestive problems.

Sources (references): 
National Geographic ,  The Wall Street Journal  (June 21, 2016 issue), Science&Vie.

Jeanne Kenney
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I’m a stylist trainer, a content creator, and an entrepreneur passion. Virgo sign and Pisces ascendant, I move easily between my dreams, the crazy world I want, and my feet on the ground to carry out my projects.

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