Are blueberries a prebiotic?

Online Answer
All types of berries, whether fresh or frozen, contain polyphenols. These are an excellent source of fibre, and also contain good amounts of resistant starch and inulin, which are known to have a prebiotic effect.
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Many high-fiber foods also serve as prebiotics. Foods with high amounts of prebiotics include chicory, garlic, leeks, onion, asparagus, and Jerusalem artichokes (sunchokes). They're also found in lesser amounts in bananas, whole wheat, yams, and sweet potatoes..
All types of berries, whether fresh or frozen, contain polyphenols. These are an excellent source of fibre, and also contain good amounts of resistant starch and inulin, which are known to have a prebiotic effect.
Resistant starch functions as a prebiotic, supporting the abundance of beneficial bacteria in the gut. Some research indicates that it might also specifically enhance probiotic bacteria levels. These especially beneficial bacteria perform essential functions to keep the whole microbiome and gut healthy and happy.