Ginger
“Ginger tea, ginger supplements, ginger lozenges — ginger has been shown in some studies to help alleviate nausea and vomiting,” Upton says. “In fact, it is often recommended for morning sickness and for chemotherapy-induced nausea.”
Just one word of caution: “While it’s safe for adults, ginger should not be used to treat a child’s gastrointestinal illness,” she adds.
Water
Upset tummies often result from getting a little backed up. And since dehydration frequently causes constipation, sipping unsweetened beverages like tea, sparkling H2O and the occasional diet soda can keep everything moving along. Most people need a minimum of eight cups per day.