Prebiotics are non-digestible fibers that act as food for beneficial gut bacteria, such as Bifidobacteria and Lactobacilli. This selective fermentation produces short-chain fatty acids (SCFAs) like butyrate, which serve as an energy source for colon cells, reduce inflammation, and improve gut barrier integrity. These effects contribute to systemic metabolic health and may mitigate age-related inflammation ('inflammaging').
Verdict
A safe, evidence-based tool for optimizing gut health and metabolic function.
HEALTHSPAN IMPACT
Moderate
RISK LEVEL
Low
EVIDENCE GRADE
A
MONTHLY COST
$15 - $40
Protocol
- Typical doses range from 2.5 to 10 grams per day, often started low and titrated up to manage gastrointestinal side effects.
Flags
- May cause significant gas, bloating, or abdominal discomfort, especially at higher doses or during initial use.
- Individuals with SIBO (Small Intestinal Bacterial Overgrowth) or certain FODMAP sensitivities may experience worsened symptoms.
- Rapidly increasing dosage can lead to diarrhea or cramping.