With so many commercial probiotics strains on the market, how are we to know which ones work best? This is a common question that's not easy to answer because each person (when it comes to their gut health) has a different goal in mind.
One person may take a probiotic to offset the effects of antibiotic use, one may be looking for a natural way to lower cholesterol levels, and another may want to improve overall digestion and immunity. Some experts will tell you to consult the scientific literature to identify probiotic strains that have demonstrated efficacy in clinical trial studies. However, before the literature is consulted, let's take a step back and ask a more fundamental and important question: How do probiotics work, and do they work the same for everyone?