From the Ocean to the Medicine Cabinet: The Truth About Red Algae Supplements
What are red algae?
Red algae are marine plants that are used medicinally and are members of the phylum Rhodophyta.
What are red algae used for?
Vitamin K and calcium are abundant in red algae. It is suggested that food supplements made from these marine organisms be used to treat hypertension. Additionally, the presence of polyphenols in these products is thought to have an antioxidant effect, which would aid in the fight against heart disease, osteoporosis, dementia, and numerous other health issues.
The European Food Safety Authority, or EFSA, does not, however, seem to have approved any claims attesting to the advantages of consuming red algae. The claim that calcium taken in the form of citrate salt derived from the red algae Lothothamnion coralliloides could help maintain normal blood pressure because calcium promotes, maintains, and helps develop a healthy heart has been denied authorization by the Authority.
Potential contraindications and cautions
Supplementing with red algae may cause problems when taking certain medications. Specifically, high vitamin K dosages may make anticoagulants less effective. Vitamin K actually encourages blood clotting, which may result in decreased blood flow and a higher risk of major cardiovascular events like heart attacks and strokes. Therefore, it’s crucial to refrain from consuming excessive amounts of vitamin K.
Instead, consuming too much calcium through red algae supplements may cause gastrointestinal problems like bloating, gas production, and constipation. In more severe situations, kidney stones, calcium deposits in veins and arteries, and renal dysfunction can all be facilitated by an excess of calcium in the blood (hypercalcemia).
Lastly, iodine, which is abundant in red algae, can cause gastrointestinal issues like loose stools and a fullness sensation if consumed in excess. Iodine may also be contraindicated in certain situations and interact with certain medications. It is therefore best to consult your physician before taking it.
