I eat yogurt every few days and whether it's in my mind or not, I feel like it helps. If I'm on antibiotics, I eat it daily to avoid GI upset and the dreaded potential yeast infection (the joy of being a girl). The only time I seem to have issues with lactose is if I eat a lot of ice cream, especially if it's a milkshake. But if I just eat a small scoop, I'm usually okay.