Ketogenic Diets and Low Carb Diets: The Effects on the Intestinal Microbiota. A Narrative Review - PubMed
3 hours ago
- #gut microbiota
- #ketogenic diet
- #low-carbohydrate diet
- Dietary patterns significantly impact gut microbiota composition, affecting host homeostasis and biological functions.
- This narrative review examines the effects of ketogenic diets (KDs) and low-carbohydrate diets (LCDs) on the human gut microbiota, noting distinct microbial shifts with carbohydrate restriction.
- The review analyzed 10 studies involving 346 healthy adults (aged 18-74, BMI 20-48.48 kg/m²), including normal-weight, overweight, and obese individuals without diagnosed pathologies.
- Reductions in carbohydrate intake are associated with taxonomic changes at multiple levels of the gut microbiota, with phylum-level responses (e.g., Bacteroidetes, Actinobacteria) being heterogeneous and dependent on the degree and type of carbohydrate restriction.
- Variability among studies highlights the influence of dietary composition, intervention duration, and methodological differences on microbiota outcomes, underscoring the need for standardized approaches and long-term human studies to clarify implications for gut microbiota and host health.