Probiotics are living microorganisms that, when consumed in adequate amounts, provide demonstrable benefits for intestinal and general health. A balanced microbiota is essential for good digestion, a strong immune system, optimal nutrient absorption, and emotional well-being, given the close link between the gut and the brain. They are especially recommended after antibiotic use, in cases of irregular digestion, bloating, or low immunity. Look for well-studied strains like Lactobacillus acidophilus and Bifidobacterium lactis, with at least 10 billion CFUs per dose. Find the best probiotic supplements from trusted brands here.