Does Sea Moss Work for Weight Loss?
Sea moss, a type of red seaweed also called Irish moss, has gained popularity among health-conscious consumers. Often praised for its potential weight-loss benefits, it is harvested in coastal regions like Ireland, Iceland, and the Caribbean. But while some studies suggest advantages, experts also warn of risks linked to overconsumption.
Traditionally gathered along the North Atlantic coasts—including Ireland, Iceland, and parts of the British Isles—as well as in Caribbean nations like Jamaica and St. Lucia, sea moss is low in calories. A 10-gram serving (about 2 tablespoons) contains just 5 calories and 1 gram of carbohydrates. Its active compound, carrageenan, behaves like soluble fibre in the gut, slowing digestion and promoting a sense of fullness.
A 12-week study found that participants taking 1,000 milligrams of red seaweed extract daily lost more body weight and fat mass than those in the control group. Animal research further suggests carrageenan may reduce fat absorption, limit fat cell formation, and boost the activity of fat-burning brown tissue. Some evidence also indicates a prebiotic effect, improving gut bacteria balance by increasing beneficial microbes and suppressing harmful ones. However, sea moss carries potential dangers. Its high iodine content means excessive intake can lead to toxicity, thyroid disorders, or even thyroid cancer. The seaweed may also absorb toxic metals like arsenic, mercury, and lead from contaminated waters. Additionally, its anticoagulant properties pose risks for individuals on blood-thinning medications.
Sea moss offers possible benefits for weight management and gut health, but caution is advised. Overconsumption can result in iodine toxicity, heavy metal exposure, or interactions with certain medications. Those considering it as a supplement should consult a healthcare professional before use.
