Yogurt (Live Culture, Unsweetened)

Plain yogurt with verified live Lactobacillus bulgaricus and Streptococcus thermophilus cultures remains a foundational probiotic food. A 2024 meta-analysis in Gut Microbes found regular consumption of live-culture yogurt reduced antibiotic-associated diarrhea by 52% and improved overall gut transit time, though sugar-laden flavored varieties may negate these benefits.