Fructooligosaccharides (FOS)

Fructooligosaccharides (FOS) are naturally occurring prebiotic fibres made up of short chains of fructose units. Found in foods such as chicory, onions and bananas, they are available in short-chain (scFOS) and long-chain (lcFOS) forms, each with slightly different fermentation characteristics in the gut. This category is suited to anyone looking to increase their daily intake of prebiotic fibre as part of a varied and balanced diet.
FOS are not digested in the upper gastrointestinal tract and instead reach the colon, where they serve as a substrate for beneficial bacteria. When choosing a FOS supplement, consider the chain length, source, purity level and format — powders can be easily added to food or drinks, while capsules offer convenient, measured servings. As with all food supplements, they are intended to complement a healthy diet and lifestyle, not to replace it.

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