Bacteria from the gut influence the host micronutrient status

Area of Science:

• Microbiology
• Human Nutrition
• Public Health

Background:

• Micronutrient deficiencies (
• hidden hunger
• ) are a major global health issue, especially in low- and middle-income countries.
• Conventional interventions like supplementation and fortification have limitations and potential side effects.
• The gut microbiota's role in micronutrient bioavailability and host health is increasingly recognized but not fully understood.

Purpose of the Study:

• To review the current knowledge on the bidirectional relationship between micronutrients and gut microbiota.
• To highlight the impact of this relationship on micronutrient malnutrition.
• To focus on key micronutrients: iron, zinc, vitamin A, and folate (vitamin B9).

Main Methods:

• Literature review of existing research on micronutrients and gut microbiota.
• Synthesis of findings on how gut bacteria affect micronutrient bioavailability.
• Analysis of how micronutrient availability shapes gut microbiota composition.

Main Results:

• Gut bacteria can enhance micronutrient bioavailability by degrading anti-nutrients and synthesizing vitamins.
• Gut microbiota contributes to intestinal barrier integrity and nutrient absorption.
• Micronutrient availability influences gut microbiota composition and function.

Conclusions:

• The gut microbiota plays a significant role in micronutrient status and overall health.
• Further research into this two-way interaction is crucial for developing effective strategies against micronutrient malnutrition.
• Targeting the gut microbiota may offer novel approaches to combat hidden hunger.