Spirulina is a type of seaweed rich in proteins, minerals and vitamins, such as, vitamin K, vitamin B12, biotin, folic acid and beta-carotene. This freshwater algae is, according to Natural News, useful in strengthening the immune system and preventing cancerous cells from developing. Dr Genene Tefera's 2009 essay, Spirulina: The Magic Food, published in The Biodivesity Newsletter, listed the health benefits of spirulina, reporting that it helps regulate blood sugar levels, lowers cholesterol, re-energizes, detoxifies and promotes weight loss. Although spirulina is generally considered as being a superfood, greater scientific research is needed to verify the various health benefit claims.

Spirulina is one of the richest sources of vitamin B12, rating higher than beef liver, sea vegetables and chlorella.

Vitamin K as it helps to calcify your bones and prevents atherosclerosis, the hardening of arteries. Vitamin K also assists with the clotting of blood. The overuse of antibiotics or blood thinners such as aspirin can diminish vitamin K levels. Depleted levels of vitamin K can lead to bleeding disorders such as hematomas, heavy menses, bleeding gums and gastrointestinal bleeding.

Spirulina (speer-U-lee-nah) Arthrospiraplatensis, is a fresh water micro blue green algae that gets its name from its microscopic spiral shape. Spirulina has been eaten by many cultures throughout history. It is one of nature's most perfect, nutrient rich foods, and is a world class immune system booster. Spirulina is also a renowned source of protein, chlorophyll, trace minerals, vitamins and antioxidants. It is well known as a protector against radioactive particles and an enabler for balancing pH, thus producing a more alkaline, health-giving state in your body. There has never been a more delicious way to get high quality nutrition! Try adding to your cacao smoothies, coconut elixirs, and raw desserts! he benefits of Spirulina range far and wide. Most notably spirulina is one of the best sources of protein in the world. Spirulina contains about 65% protein including all eight essential amino acids. Plus, the protein in spirulina is five times easier to digest than that of meat or soy. Spirulina also contains an abundance of other nutrients such as, iron, vitamin E, beta-carotene, enzymes, omega 3’s and 6’s, DHA and a rare essential fatty acid called gamma linolenic acid (GLA), found in mother's milk. GLA is a powerful anti-inflammatory known to ease everything from joint pains such as arthritis to menstrual cramping. Recommendations: Beginners or Kids (age 2-9): 3-5 grams (1 tsp) per day Adults or Teens (age 10-18+): 6-10 grams (1 Tbsp) per day Advanced or Cleansing: 11-20+ grams per day (2 Tbsp) per day Great for Energy, Expecting Moms, Grounding, Immune System, Protein, Alkalinity, Anti-Aging, Phytonutrients, Antioxidant, Anti-Parasite, Minerals, Brain Function, Children, Clarity, Detox Heavy Metals/Radiation, Detoxification, Digestion

Source http://www.sunfood.com/food/spirulina/spirulina-crunchies-8-oz-raw-natural-low-temp-dried.html Mayo Clinic