Mayo Clinic Q&A DEAR MAYO CLINIC: Recently, my niece was diagnosed with cystic fibrosis at 16. No one else in…

Mayo Clinic Q&A DEAR MAYO CLINIC: What would cause someone to become lactose-intolerant later in life? I’m in my 40s…

By Marsha McCulloch, M.S., R.D., Environmental Nutrition Newsletter Heartburn, constipation and other digestive tract issues can strike at any age,…

If you’re one of the 70 million people affected by digestive problems you probably know that diet plays a role…

By Marcia McCulloch, M.S., R.D., Environmental Nutrition Newsletter Your gut is home to trillions of friendly microbes, which are primarily…