Tag: Algae toxins

According to the Centers for Disease Control and Prevention (CDC), harmful algal blooms (HABs) can produce toxins that make people and animals sick, and these are most often caused by cyanobacteria, which are not true algae. This distinction is critical because while many green algae species are benign, it is the bacteria known as "blue-green algae" that poses the primary threat, and it can be difficult to tell them apart visually.

According to scientific studies, spirulina harvested in the wild or cultivated in open ponds is susceptible to contamination from heavy metals and other toxins present in its growing environment. Understanding what is the contamination of spirulina powder is crucial for ensuring the safety and purity of this popular dietary supplement.

According to a 2024 review, some seaweed species contain elevated levels of heavy metals like arsenic and cadmium, highlighting the importance of understanding which seaweed should be avoided. While often celebrated for its nutrient density, certain varieties can pose risks due to excessive iodine, harmful toxins, and environmental pollutants.