I take a probiotic every day. It helps my digestion. And any one who takes an antibiotic should also take a probiotic, to replace the good bacteria in the gut, as antibiotics kill both good and bad. Helps prevent yeast infections that often occur when females are given antibiotics.
We swear by probiotics. All three of us (me, hubby and toddler) had the rotovirus a couple of months ago, but other than that we are very healthy. Probiotics are expensive but worth the cost.