According to the guidelines called "Probiotics: A Consumer Guide for Making Smart Choices" unveiled by the International Scientific Association for Probiotics and Prebiotics (ISAPP), there are five criteria that consumers should consider when selecting a probiotic: probiotic strain, proof, quality, quantity and packaging.
Probiotic strain; because not all "probiotics" are the same.
Different probiotics may have different properties. A probiotic is defined by its genus, species, and strain designation. It’s best to find a product containing the exact strain or strains that have been studied for the benefit you are seeking.
Proof; just because it says "probiotic" doesn't mean it is a probiotic.
Some products labeled "probiotic" do not contain strains shown to be effective or may not deliver adequate levels of live probiotic through the end of the product's shelf life. Only buy from reputable manufacturers.
Quality: Food or supplement-which is better?
This is really a matter of convenience. The probiotic content is more important than how you consume them.
Quantity: What is the effective minimum dose?
Different probiotics have been shown to be effective at different levels. A product with more colony forming units (CFU –more bacteria) is not necessarily better.
Packaging –what it should tell you
The packaging and labeling meet all World Health Organization (WHO) recommendations by clearly stating strain, colony forming units (CFU), suggested serving size, health benefits, proper storage conditions and corporate contact information.
See how MetaBiotic™ meets ISAPP Key Criteria† here.