Feta cheese is a soft, white-colored cheese typically made from the milk of sheep and goats. One of the oldest cheeses in the world, it’s known for a rich aroma and slightly sour taste. While feta cheese provides you with an excellent source of nutrients like calcium and protein, it also contains high amounts of sodium and saturated fat. Gut Health: Fermented foods like feta cheese contain probiotics. These strains of good bacteria promote a healthy gut and support immune system function. Researchers are studying if probiotics can help with symptoms of diarrhea and constipation associated with both IBS and IBD syndromes.