A natural compound found in the culinary spice turmeric may be as effective as omeprazole—a drug used to curb excess stomach acid—for treating indigestion symptoms, suggests the first study of its kind. The researchers randomly assigned 206 patients aged 18–70 with recurrent upset stomach (functional dyspepsia) of unknown cause to one of three treatment groups for a period of 28 days. These were: turmeric (two large 250 mg capsules of curcumin four times a day) and one small dummy capsule (69 patients); omeprazole (one small 20 mg capsule daily and two large dummy capsules four times a day (68 patients);...