Irish Moss vs Sargassum fusiforme

Side-by-side comparison of medicinal herbs

Herb

Irish Moss

Chondrus crispus

Nutritive

Sargassum fusiforme

Nutritive

⚠️ Pregnancy & Nursing Warnings

Irish Moss

✅ Generally safe in pregnancy

✅ Generally safe while nursing

Sargassum fusiforme

❌ Not recommended in pregnancy

❌ Not recommended while nursing

Description

Red Atlantic seaweed used in Irish, Caribbean, and coastal folk medicine as nutritive demulcent and respiratory herb, now popular as superfood.

Japanese and Korean sea vegetable; high in minerals but contains inorganic arsenic requiring moderation.

Active Compounds

carrageenan, iodine, bromine, sulfated polysaccharides, minerals

fucoidan, alginic acid, iodine, calcium, iron, fucosterol

Traditional Uses

Respiratory conditions in Irish coastal folk medicine, Nutritive convalescent food in Ireland, Digestive conditions, Caribbean sexual tonic and immune support

thyroid support, bone health, digestive health, immune support

Modern Uses

Demulcent, Prebiotic, Immune modulating, Thyroid support

thyroid support, anti-inflammatory, antioxidant, nutritive

Adult Dosage

1-4 tablespoons gel daily; 2-3g dried moss daily

Limit to 5g dry weight weekly due to arsenic content

Contraindications

Thyroid conditions (iodine), Blood thinners, Surgery

pregnancy - arsenic risk, children, hyperthyroidism, kidney disease

Side Effects

Excess iodine, Possible blood thinning

arsenic accumulation with excess consumption

Drug Interactions

0 known interactions

Reviewed by: HerbAlly Editorial Team, Medical herbalists and healthcare professionals

Sources: WHO Monographs · NCCIH · PubMed · Commission E

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