Algae & Sea VegetableSea lettuce
Sea lettuce is a nutrient-dense green seaweed rich in protein, essential minerals, and the prebiotic fiber ulvan. Preclinical and nutritional studies suggest it supports gut health, provides antioxidant benefits, and may offer immunomodulatory effects. Human clinical evidence for specific disease treatment is limited, but it is widely consumed as a healthy food.
Benefits
- Sea lettuce is a nutrient-dense green seaweed rich in protein
- essential minerals
- and the prebiotic fiber ulvan. Preclinical and nutritional studies suggest it supports gut health
- provides antioxidant benefits
- and may offer immunomodulatory effects. Human clinical evidence for specific disease treatment is limited
- but it is widely consumed as a healthy food.
Key compounds
Ulvan (sulfated polysaccharide)polyphenolscarotenoids (luteinbeta-carotene)phytosterolsProteindietary fiberiodineironmagnesiumcalciumzincvitamin B12vitamin Avitamin C
May help with
- Gut health
- antioxidant support
- mineral support
- immune support
Best for these goals
Gut healthantioxidant supportmineral supportimmune support
How to use it
Fresh; dried; powdered; flakes; extracts
Evidence level
Limited
Cautions & interactions
IODINE: Moderate — monitor intake, especially with thyroid conditions or medications | Contaminant concerns: Heavy metal accumulation (lead, mercury, cadmium, arsenic) from polluted waters; potential for microcystins if co-occurring with cyanobacteria | Wild-harvested sea lettuce may accumulate heavy metals and pollutants; consume farmed or tested sources to avoid contamination.
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