Spirulina may help the body produce antibodies and other cells that fight infection and chronic illnesses.

Spirulina may help reduce exercise-induced oxidative damage, thereby improving muscle strength and endurance.

One review of five studies found that taking 1-8g of spirulina per day could significantly reduce both systolic and diastolic blood pressure, especially for people with high blood pressure levels. This reduction is thought to be driven by an increased production of nitric oxide, a signaling molecule that helps your blood vessels relax and dilate.

Spirulina can help lower total cholesterol, low-density lipoprotein (LDL) or bad cholesterol, and triglycerides, while also increasing high-density lipoprotein (HDL) or good cholesterol, which are all risk factors for heart disease.

Spirulina contains a good amount of B vitamins (B1, B2, B3) and electrolytes (Calcium, Magnesium) which are crucial for energy metabolism and nutrient conversion.

The main component of spirulina is called phycocyanin, which is an antioxidant and can help fight oxidative stress by blocking the production of molecules that promote inflammation.