Constipation is defined as fewer than three bowel movements per week or stools that are hard, dry, and difficult to pass. It is the most commonly Googled digestive symptom globally. It can be caused by low fibre intake, dehydration, lack of movement, stress, or gut microbiome dysbiosis. Specific probiotic strains - particularly Bifidobacterium and Lactobacillus species - have strong clinical evidence for improving constipation frequency and stool consistency.
