A baby with an upset stomach is a miserable creature; as his parent, you want to provide something to alleviate his discomfort. You also must prevent dehydration, a potentially serious problem in infants, who dehydrate more quickly than adults. Certain foods have soothing qualities, while others can worsen stomach problems. The goal of a diet to treat viral stomach upsets is to give the intestines a rest and a chance to recover. Call your child's pediatrician if your baby shows signs of dehydration, such as lethargy, decreased urine output or a sunken, soft spot.
Oral Rehydration Solutions
The best first food for babies with stomach problems is actually a liquid. If your child has been vomiting or had diarrhea, start with commercial oral rehydration solutions that contain electrolytes to replace what's lost in vomit or loose stool. Don't give fruit juice or other drinks high in sugar, which can worsen diarrhea unless you dilute them. Don't give more ounces than your baby would normally drink. Don't give plain water, which doesn't contain the necessary salts and sugars and which could cause water intoxication in large amounts. If you're breastfeeding, continue to nurse as long as your baby isn't actively vomiting.