Source Naturals, Spirulina, 500 MG, 500 TabsProduct Description Considered as Dietary Supplement Product Benefits Ingredients Supplement FactsServing Size: 6 TabletsServings Per Container: 33 Amount Per Serving %DV Calories 10 Total Carbohydrate 1 g <1%* Sodium 20 mg 1% Spirulina (Arthrospira platensis) 3 g Yielding Approximately: Protein 2 g 4%* Vitamin A (as beta carotene) 6,000 IU 120% Vitamin K 16 mcg 20% Vitamin B 12 3 mcg 50% Iron 1 mg 6% Potassium 40 mg 1% Phycocyanin 300 mg gamma