However, it does not seem to make a difference when you first give young children and babies wheat products, it found, with no difference found between those babies who had been exposed to gluten before 17 weeks of age, or after week 26.
Breast-feeding does not protect against developing the allergy either, it claims.
The results of the survey, which looked at 6,400 newborns in four countries, have been published in the magazine Pediatrics.
The researchers have not yet discovered why Swedish children are more likely to develop the allergy, "The next step is to look at the amount of gluten. If it isn't connected to when they started to eat it, maybe the amount might be the answer", Lund University's Carin André Andersson told magazine Dagens Medicin.