Probiotics have long been hailed for promoting “good” bacteria in the gut— aiding digestive issues like irritable bowel syndrome (IBS) and antibiotic-related diarrhea. They’ve also been used to regulate urinary tract issues and skin woes like eczema. Although those benefits have been well known since the ’90s, emerging studies suggest probiotics may also benefit the mind. We recently got this question from a viewer: Dear Dr. Manny, I read probiotics can help with depression. Is…