What Is Garlic Supplement?
Garlic (Allium sativum) is one of the oldest medicinal plants, used for thousands of years both as food and for health support. Garlic extract supplements contain concentrated bioactive compounds, particularly allicin and S-allylcysteine, with proven health benefits (Rana et al., 2011).
Key Benefits
Research has demonstrated several health benefits of garlic supplementation:
- Blood pressure reduction — a meta-analysis of 20 clinical trials found that garlic supplements lowered systolic blood pressure by an average of 8.6 mmHg and diastolic by 6.1 mmHg in hypertensive patients (Ried et al., 2008)
- Cholesterol support — garlic supplements reduced total cholesterol by 12-23 mg/dL (Ried et al., 2013)
- Immune system support — daily garlic supplementation reduced the incidence of common colds by 63% (Josling, 2001)
- Antioxidant activity — aged garlic extract increased the activity of antioxidant enzymes (Borek, 2001)
Note: Dietary supplements are not a substitute for a varied, balanced diet and healthy lifestyle.
How Garlic Supplements Work
The primary bioactive compound in garlic is allicin, which forms when garlic cells are crushed and the enzyme alliinase reacts with alliin. Allicin is an unstable compound that rapidly breaks down into other sulfur-containing compounds (Lawson & Hunsaker, 2018).
Different Forms
- Garlic powder — contains alliin, which converts to allicin in the digestive tract
- Aged garlic extract (AGE) — contains S-allylcysteine, a more stable bioactive compound (Amagase et al., 2001)
- Garlic oil — contains diallyl sulfides
Recommended Dosage
| Group | Dosage | Notes |
|---|---|---|
| Adults | 600-1,200 mg garlic extract daily | Divide into 2-3 doses |
| Cardiovascular support | 600-900 mg standardised powder | Containing 1.3% allicin |
| Immune support | 180 mg allicin daily | During cold season |
Important: Garlic may affect blood clotting. Discontinue garlic supplements at least 2 weeks before planned surgery.
How to Choose the Right Garlic Supplement
What to Look For:
1. Standardised allicin content — look for products that guarantee allicin amount
2. Enteric-coated tablets — protect active ingredients from stomach acid
3. Aged garlic extract (AGE) — the most extensively studied form (Amagase et al., 2001)
4. Odourless variants — enteric-coated products do not cause garlic breath
5. GMP certification — quality assurance
MaxFit offers a curated selection of high-quality garlic supplements that meet European standards.
Frequently Asked Questions
Are garlic supplements safe?
Yes, garlic supplements are generally safe at recommended doses. However, consult your doctor if taking blood-thinning medications, as garlic may enhance their effects (Rana et al., 2011).
When is the best time to take garlic supplements?
Take garlic supplements with food to reduce gastrointestinal irritation.
References
1. Ried K, Frank OR, Stocks NP, Fakler P, Sullivan T. (2008). Effect of garlic on blood pressure: a systematic review and meta-analysis. BMC Cardiovascular Disorders, 8, 13.
2. Ried K, Toben C, Fakler P. (2013). Effect of garlic on serum lipids: an updated meta-analysis. Nutrition Reviews, 71(5), 282-299.
3. Josling P. (2001). Preventing the common cold with a garlic supplement: a double-blind, placebo-controlled survey. Advances in Therapy, 18(4), 189-193.
4. Borek C. (2001). Antioxidant health effects of aged garlic extract. Journal of Nutrition, 131(3), 1010S-1015S.
5. Lawson LD, Hunsaker SM. (2018). Allicin bioavailability and bioequivalence from garlic supplements and garlic foods. Nutrients, 10(7), 812.
6. Amagase H, Petesch BL, Matsuura H, Kasuga S, Itakura Y. (2001). Intake of garlic and its bioactive components. Journal of Nutrition, 131(3), 955S-962S.
7. Rana SV, Pal R, Vaiphei K, Sharma SK, Ola RP. (2011). Garlic in health and disease. Nutrition Research Reviews, 24(1), 60-71.
MaxFit offers a wide range of premium garlic supplements, carefully selected to meet strict European quality standards.
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