This document presents research on using Spirulina as a potential solution to protein deficiency issues faced by pregnant women in Indonesia. It discusses high maternal and infant mortality rates in Indonesia due to chronic energy deficiency caused by lack of protein intake during pregnancy. Spirulina is presented as a good source of protein, containing 57.5 grams of protein per 100 grams. The study evaluated people's knowledge, attitudes and actions regarding consuming Spirulina-fortified milk products during pregnancy. It found that those with greater knowledge showed more positive attitudes and were more likely to take action. The conclusion is that Spirulina can help address maternal mortality in Indonesia by providing necessary protein intake during pregnancy.