Mountain Rose Herbs

Certified Organic

Sea Lettuce Flakes

  • Ulva lactuca
  • Origin: USA
Sea Lettuce Flakes

Common Name

Standardized: sea lettuce

Botanical Name

Ulva lactuca L.
Plant Family: Ulvaceae



Sea lettuce is a bright green algae composed of lobed, ruffled edged leaves that are sheet like and do resemble a leaf of lettuce. It has almost no stalk at point of attachment and no true roots.

Parts Used

The whole plants, which consists almost entirely of leaves.

Typical Preparations

Added to soups and stocks, or used in salads.


One of the most familiar of shallow salt water seaweeds, sea lettuce is a favorite among manatees and humans alike and can even be used as an ingredient in ice cream. It is very high in iron, protein, iodine, manganese, and nickel.


Don't use on a daily basis for more than 2 weeks at a time, taking a 2 week break before using again. This will prevent you from overdosing iodine with potential imbalance in thyroid function. For periodic use only and not to be taken for extended periods of time. Not to be used while pregnant. Use caution if suffering from hypothyroidism.

For educational purposes only This information has not been evaluated by the Food and Drug Administration.
This information is not intended to diagnose, treat, cure, or prevent any disease.