is spirulina good for constipation
â¢ Spirulina is very high in bio-available iron, making it beneficial to those with anemia or pregnancy, with reduced risk of constipation. â¢ Spirulina is a good source of vitamins B-1(thiamine), B-2 (riboflavin), B-3(nicotinamide), B-6 (pyridoxine), B-9 (folic acid), B-12 (cobalamin), vitamin E, and vitamin K1 and K2.