Blue Spirulina Emerges as a Superfood with Surprising Health Perks
Blue spirulina, a bright pigment extracted from spirulina algae, is gaining attention for its potential health benefits. Often used as a natural food colouring in smoothies, lattes, and baked goods, this compound—known scientifically as phycocyanin—has been studied for effects ranging from blood sugar control to heart protection. Research on animals suggests blue spirulina may help manage diabetes. A 2020 test tube study found it lowered blood sugar and blocked enzymes that digest starch. Another 2022 animal study linked phycocyanin to reduced fasting glucose, body weight, and food intake in diabetic subjects.
Studies also point to benefits for brain and heart health. A 2020 animal trial indicated improvements in cognitive dysfunction markers related to Alzheimer's disease. Meanwhile, a 2022 study suggested the pigment could prevent heart damage and lower enzymes tied to heart attacks. Earlier research from 2013 found that phycocyanin supplementation reduced cholesterol, triglycerides, and LDL levels in animals. Beyond these effects, blue spirulina is believed to support immune function and provide antioxidants. Typically, it is consumed in small doses—around 0.5 to 2 grams per serving—added to foods like energy bars, protein shakes, or acai bowls without altering flavour.
Current findings on blue spirulina come primarily from animal and lab-based studies. The pigment is already used in various foods for its colour and potential nutritional perks. Further research may clarify its broader applications for human health.
