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Prebiotics vs. probiotics: What’s the difference?
Probiotics add beneficial bacteria to the gut, while prebiotics feed them, and experts say supplements may help when diet falls short.
Gut health is having a moment, yet the terminology remains muddled. Courtney Cho for Ritual explains that understanding the distinction between prebiotics and probiotics matters more than consumers might think.
Terms like prebiotics and probiotics are frequently used interchangeably, making it difficult to know what the body actually needs or what consumers are paying for. This confusion complicates informed decision-making.
According to the World Health Organization, probiotics are living strains of 'good bacteria' that support immune and digestive health. Because they occupy only temporary residence in the gastrointestinal tract, they require consistent, daily consumption.
Individuals can take prebiotics and probiotics together because they serve complementary functions: probiotics introduce bacteria to the microbiome while prebiotics act as the food source. Supplements can provide support when consuming sufficient produce is difficult.
Unlike living probiotic organisms, prebiotics are nondigestible food components found in complex carbohydrates like flax, oats, and garlic. These nutrients strategically support existing 'good bacteria' in the digestive system.