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Ben & Jerry’s has expanded its ice cream portfolio with a new limited-edition flavour, Marshmallow Sky. Marshmallow Sky consists of blue-hued marshmallow-flavoured ice cream, marshmallow swirls and chocolate chip cookie dough. The ice cream gets its blue colour from blue spirulina, which contains a vibrant natural blue-green pigment called phycocyanin. Ben & Jerry’s claims that it has added spirulina not only for aesthetic purposes but also for its potential health benefits. Phycocyanin is rich in antioxidants and anti-inflammatories, while spirulina also contains multiple nutrients such as protein, B vitamins, iron and copper. Studies also indicate that spirulina can lower triglycerides and improve cholesterol levels, which may support heart health. Some studies suggest spirulina may have anticarcinogenic properties; however, more research is needed to confirm these claims. Marshmallow Sky is available in pint cartons for a limited time in stores across the US, and as a permanent flavour in Ben & Jerry’s Scoop shops.