Garlic extract

Stand: 10. November 2026 Heart & circulation

Garlic extract is obtained from the cloves of garlic (Allium sativum) and concentrates its characteristic compounds. Its profile is shaped by sulfur-containing compounds, particularly allicin, which is responsible for the typical odor and much of the properties studied.

Garlic is one of the oldest medicinal and culinary plants in the world. It is traditionally associated with heart and circulatory health, among other things.

Steckbrief

Botanical name
Allium sativum
Plant family
Amaryllis family (Amaryllidaceae)
Part used
Cloves (bulb)
Characteristic constituents
Allicin and other sulfur compounds
Traditional association
Heart and circulation

Wirkung und Studienlage

Research on garlic focuses mainly on heart and circulatory health. Among other things, possible effects on blood pressure and blood lipids are being investigated, which are attributed to the sulfur-containing compounds. The results of individual studies point in this direction, but are inconsistent and in some cases limited to smaller studies.

No reliable, health-related claims can be derived from this. In terms of European health claims regulations, garlic extract does not carry any approved health claims. What is considered well established is primarily that garlic, as part of a plant-based, balanced diet, is a sensible choice.

Anwendung und Dosierung

Garlic extract is available as capsules, tablets, or powder, often in a low-odor form. Some preparations are standardized to a certain content of sulfur compounds or to an allicin potential. Aged garlic extract is also common.

There is no universally valid, scientifically derived dosage. Follow the recommended intake of the respective product. In cooking, garlic is considered a safe food.

Sicherheit und Wechselwirkungen

Garlic is considered a food and is regarded as safe in normal amounts. Larger amounts can cause bad breath, body odor, and gastrointestinal discomfort.

Since garlic can affect blood clotting, caution is advised when taking anticoagulant medications and before surgery, and consulting a doctor is advisable. Interactions with certain other medications are also discussed. Anyone who regularly takes medication should have concentrated garlic preparations checked by a doctor.

Passende Produkte im sanitas-Shop

Häufige Fragen

Allicin is one of the characteristic sulfur compounds of garlic. It forms when garlic is crushed and is considered key to its odor and many of the properties studied. Some preparations indicate an allicin potential.

Low-odor preparations are intended to make use more pleasant. Whether they fully match more odor-intensive forms in their active compound profile depends on the manufacturing process and cannot be answered in general terms.

Yes. Garlic can affect blood clotting. Caution is advised with blood-thinning medications and before surgery. Anyone who regularly takes medication should have concentrated preparations checked by a doctor.

Fachliche Prüfung

Prof. Dr. med. Dr. phil. Martin Hörning

Arzt, Professor i.R. und Mitbegründer von sanitas

Seit 40 Jahren beschäftigt er sich intensiv mit den Themen Prävention, Gesundheitsförderung, Achtsamkeit, Longevity und Naturheilverfahren. In Herstelle führt er eine kleine Privatpraxis.