Seamoss Powder is a finely milled red seaweed powder made from Chondrus crispus (often called Irish moss). It’s widely used as a “smoothie booster” because seaweeds contain naturally occurring minerals and fibres—and because Irish moss is traditionally associated with thickening foods through seaweed polysaccharides like carrageenan. 

Here’s the grounded truth: seamoss is nutrient-containing, but it’s not magic—and online claims can be exaggerated. Mineral content varies by harvesting location and processing, and the viral “92 minerals” claim isn’t confirmed in a consistent, standardised way. Think of seamoss as an optional add-on to a balanced diet, not a replacement for real food. 

Because seaweed can be naturally high in iodine—and can absorb heavy metals from seawater—smart use matters: keep serving sizes modest, don’t “mega-dose,” and be especially cautious if you have thyroid conditions or take thyroid medication.