Citrus fruits can lead to an upset stomach in babies and might also cause a rash. Common fruits to watch out for include oranges, grapefruit, lemons, limes and tangerines. A similar effect is ascribed to kiwis, strawberries, cherries and prunes. The last two can also have a laxative effect on the baby

Experts believe that colic is the result of an allergy to milk protein (or lactose intolerance) in formula-fed babies. More rarely, colic may be a reaction to specific foods in Mom's diet in breastfed babies. Either way, these allergies or sensitivity can cause tummy pain that may set off colicky behaviour. The most likely culprit for your baby is dairy products in your diet — milk, cheese, yoghurt, pudding, ice cream, or any food that has milk, milk products, casein, whey, or sodium caseinate in it. Other foods, too — like wheat, corn, fish, eggs, or peanuts — can cause problems.

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