Why poor gut health triggers chronic fatigue and low B12 ?

Experts warn that poor gut health may interfere with Vitamin B12 absorption, leaving people fatigued despite a healthy diet. Stress, inflammation, antibiotics, and digestive issues can weaken the gut microbiome, reducing nutrient uptake. Doctors recommend combining B12-rich foods with probiotics, prebiotics, and fiber-rich meals to support energy, digestion, and long-term wellness.