Can the high content of Vitamin A in Spirulina cause toxic problems ?
There is “Performed” vitamin A from animal sources, such as liver. This form of vitamin A is sometimes associated with toxicity and overdose, because it is fat-soluble and therefore is not readily excreted by the human body. “Proformed” vitamin A, or Pro-vitamin A, from carotenoids such as Beta-carotene, Lutein, Cryptoxanthine and others found in Spirulina or other vegetables are converted to vitamin A only as required by the body, thus avoiding and minimizing the dangers of toxicity.
