Bonus: How to evaluate digestive health products

Want to ensure the digestive health products you stock are up to snuff? Ask vendors the following questions before placing an order.

1. Can you provide published studies on humans that support the claims on your labels and in your marketing information?

2. If no published studies support your product, what objective evidence shows that it delivers the benefit you boast on its packaging?

3. Can you show me data proving that the product ingredients are safe?

4. Can you tell me where your ingredients are sourced?

Sources: Anthony Almada; Gretchen Vannice