About
Garden cress seeds (Lepidium sativum L., family Brassicaceae) are edible whole seeds with a long history of culinary and traditional medicinal use across India, the Middle East, and Africa. They are valued as a functional food ingredient owing to their high content of protein, omega-3 fatty acids, dietary fibre, iron, calcium, and diverse bioactive phytochemicals including glucosinolates, alkaloids, and flavonoids.
Safety summary
Toxicological studies have found garden cress seeds free from serious side or toxic effects at typical dietary doses, with no mortality or significant adverse effects observed at doses up to 3 g/kg in rodent models. However, the seeds have documented inhibitory activity on hepatic drug-metabolising enzymes CYP2D6 and CYP3A4, raising a clinically important herb–drug interaction risk for individuals on relevant medications. The seeds contain estrogen-like phytochemicals and have emmenagogue properties, warranting caution in pregnancy; glucosinolates present may also pose a theoretical concern for thyroid function at very high supplemental doses.
Regulatory landscape
| Jurisdiction | Status | Note |
|---|---|---|
| EFSA (European Food Safety Authority) (European Union) | Approved | Garden cress seeds do not hold an E number and are not regulated as a food additive in the EU. They are consumed as a food/herb/spice and are under general botanical food provisions. EFSA has not issued a formal safety opinion specific to garden cress seeds as a food additive or supplement ingredient.source |
| FSSAI (Food Safety and Standards Authority of India) (India) | Approved | Garden cress seeds are recognised as a traditional food ingredient in India (commonly known as halim, chandrashura, or aliv). They are consumed as a whole food and used in fortified products; no specific maximum daily intake has been established by FSSAI. The seeds fall under general food/spice provisions and are not classified as a restricted food additive.source |
| FDA (Food and Drug Administration) (United States) | Approved | Garden cress (Lepidium sativum) is consumed as a whole food/spice in the US and is not listed as a regulated food additive. It is not subject to a formal GRAS notice as an isolated additive; its use as a culinary herb and seed is generally accepted under traditional food use provisions. No specific ADI or maximum level has been established by the FDA.source |
Who should approach with care
Research citations
- 1PubMed. Effect of Garden Cress Seeds Powder and Its Alcoholic Extract on the Metabolic Activity of CYP2D6 and CYP3A4. pmc.ncbi.nlm.nih.gov
- 2PubMed. Garden cress seeds: a review on nutritional composition, therapeutic potential, and industrial utilization, 2024. pubmed.ncbi.nlm.nih.gov
- 3PubMed. Anti-inflammatory and Immunomodulatory Properties of Lepidium sativum, 2022. pmc.ncbi.nlm.nih.gov
- 4PubMed. Chemical composition of garden cress (Lepidium sativum) seeds and its fractions and use of bran as a functional ingredient, 2004. pubmed.ncbi.nlm.nih.gov
- 5PubMed. Pharmacological and safety evaluation studies on Lepidium sativum L., Seeds, 1994. pubmed.ncbi.nlm.nih.gov
