Objective:

To explore the roles of specific gut metabolites and postbiotics in regulating bone metabolism and the impact of metabolic dysregulation on gut-bone interactions.

Key Findings:

• Metabolic dysregulation negatively impacts gut microbiota diversity and bone health.
• Gut dysbiosis is linked to obesity and type 2 diabetes, contributing to bone disorders.
• Short-chain fatty acids (SCFAs) play a significant role in regulating metabolism and inflammation.
• Postbiotics may help restore gut integrity and prevent bone loss.
• Specific gut microbial profiles, such as those with reduced diversity, are associated with low bone mass and osteoporosis.

Interpretation:

The findings suggest that gut metabolites and microbiota significantly influence bone health, particularly in the context of metabolic disorders, highlighting potential therapeutic avenues such as targeted dietary interventions.

Limitations:

• The review primarily focuses on existing studies without new experimental data.
• The exact mechanisms by which gut metabolites affect bone health remain unclear.
• Potential biases in the reviewed literature may affect the conclusions drawn.

Conclusion:

Understanding the gut-bone axis and the role of gut metabolites could lead to novel strategies for preventing and treating bone loss associated with metabolic disorders, warranting further research into specific interventions.