by: Nancy Dell, Registered Dietitian Posted: Oct 7, 2021 / 01:58 PM EDT / Updated: Oct 7, 2021 / 01:58 PM EDT FILE – This July 11, 2018, file photo shows yogurt on display at a grocery store in River Ridge, La. Despite shelves full of new varieties. (AP Photo/Gerald Herbert, File- SPRINGFIELD, Mass. (WWLP) – Healthy gut bacteria can help improve health from A, arthritis, to ZZZ’s, getting good sleep.