Synbiotics
A combination of probiotics (beneficial bacteria) and prebiotics (their food) in one product, designed to work together on the microbiome.
Synbiotics combine probiotics (beneficial live bacteria) and prebiotics (fibres that feed them) in a single product. The idea: supply the good bacteria AND their « fuel » together, to improve their survival, establishment and effectiveness.
A fresh angle (two synbiotic strategies): a little-known distinction, there are two types:
- Complementary synbiotics: a probiotic and a prebiotic chosen independently for their own benefits (e.g. Lactobacillus + inulin)
- Synergistic synbiotics: the prebiotic is specifically chosen to feed the accompanying probiotic strain, a « made to measure » combination where the prebiotic directly favours the bacterium supplied
This second approach, more recent and more rational, aims for real synergy rather than a simple mixture.
The logic of synergy: the classic problem with probiotics is their poor survival and establishment (many die in the stomach, few colonise the gut). Supplying their prebiotic food at the same time should improve their chances of surviving and settling in. The prebiotic acts as a « survival kit » for the bacterium.
The complete ecosystem (the foursome): synbiotics belong to a coherent family:
- Prebiotics: food for the good bacteria
- Probiotics: the good live bacteria
- Synbiotics: both together
- Postbiotics: the beneficial compounds produced
Evidence and nuances: synbiotics show promising results in certain situations (after antibiotics, some digestive disorders, after surgery), but as with probiotics, effectiveness depends on the strains, the doses and the individual. Marketing sometimes runs ahead of the evidence.
The natural alternative: you get a « natural synbiotic » effect by combining fermented foods (probiotics) with foods rich in fibre/prebiotics on your plate, for example a yoghurt (or kefir) with fruit, or sauerkraut with vegetables. Nature makes synbiotics!