Garlic | whatsinit

About

What it is and where it shows up.

Garlic (Allium sativum) is a bulbous plant of the Amaryllidaceae family used worldwide as a spice and flavouring ingredient. Its principal bioactive compound, allicin, is responsible for its pungent odour and widely studied antimicrobial, antioxidant, and cardiovascular properties.

Safety summary

The regulatory and scientific consensus.

Garlic is broadly regarded as safe at culinary doses; the US FDA lists it as GRAS under 21 CFR 184.1317 and no formal ADI has been established by JECFA or EFSA, reflecting its long history of safe use as a food. At high supplemental doses it may inhibit platelet aggregation, potentiate anticoagulant or antihypertensive medications, and cause gastrointestinal discomfort or heartburn. Sensitive individuals, particularly those with IBS, scheduled for surgery, or on blood-thinning therapy, should exercise caution with concentrated garlic supplements.

Regulatory landscape

What food-safety regulators have decided.

Jurisdiction	Status	Note
EFSA (European Food Safety Authority) (European Union)	Approved	Garlic is approved and freely used as a traditional food ingredient and spice under EU general food law (Regulation (EC) No 178/2002). It carries no E-number, as it is not classified as a processed food additive. EFSA separately peer-reviewed garlic extract as a pesticide active substance (repellent/insecticide/nematicide) under Regulation (EC) No 1107/2009 in 2020 and found it acceptable for those uses.source
FSSAI (Food Safety and Standards Authority of India) (India)	Approved	Garlic is recognised as an approved spice and food ingredient under FSSAI Food Safety and Standards (Food Products Standards and Food Additives) Regulations, 2011. The import of Chinese garlic has been banned since September 2005 due to contamination with the fungus Embellisia alli.source
FDA (Food and Drug Administration) (United States)	Approved	Garlic is explicitly listed as GRAS under 21 CFR 184.1317 for use as a spice, seasoning, and flavouring agent in food; no maximum use level is prescribed beyond GMP.source

Who should approach with care

Whose guidance would steer them away.

Heart Disease — High-dose garlic supplementation exhibits antiplatelet and hypotensive activity that may potentiate anticoagulant or antihypertensive medications commonly prescribed for cardiovascular conditions, raising the risk of excessive bleeding or blood pressure reduction.

Other — Individuals scheduled for surgical procedures should discontinue high-dose garlic supplements at least one to two weeks prior to surgery, as its platelet aggregation-inhibiting properties may increase intraoperative bleeding risk.

Ibs — Garlic is rich in fructans, a fermentable oligosaccharide (FODMAP), which can provoke bloating, gas, cramping, and altered bowel habits in individuals with irritable bowel syndrome or diagnosed FODMAP sensitivity.

Ibd — Raw or high-dose garlic may irritate the gastrointestinal mucosa and exacerbate symptoms during active flares of inflammatory bowel disease (Crohn's disease or ulcerative colitis).

Diabetes — Supplemental garlic preparations may lower fasting blood glucose and potentiate antidiabetic medications, increasing the risk of hypoglycaemia, and therefore require monitoring if used alongside pharmacological diabetes management.

Research citations

The sources behind this verdict.

1FDA. Code of Federal Regulations Title 21, Section 184.1317 – Garlic. accessdata.fda.gov
2FDA. Understanding How the FDA Regulates Food Additives and GRAS Ingredients. fda.gov
3FSSAI. FSSAI Media Compendium – April 2025 (Chinese garlic import ban), 2025. fssai.gov.in
4EFSA. Peer review of the pesticide risk assessment of the active substance garlic extract – EFSA Journal 2020;18(6):6116, 2020. efsa.europa.eu
5FSSAI. Food Safety and Standards (Food Products Standards and Food Additives) Regulations, 2011, 2011. fssai.gov.in

Independently researched5 citations