FMI opines the postnatal probiotic supplements market was valued at USD 5.70 billion in 2025. Sales are expected to reach USD 6.16 billion in 2026 and USD 13.43 billion by 2036. Capsules is poised to lead by Product Type with 34.0% share in 2026 and Lactobacillus Species is estimated to command by Probiotic Strain in 2026.