formula-fed babies who start eating solid foods before they reach the age of 4 months is likely to be obese than those started later, the results of a study. This finding supports guidelines that say parents waiting their babies up should be between the ages of 4 to 6 months to start giving them solid food, said Dr. Susanna Huh, one of the main researchers from Children's Hospital Boston. "Complying with these guidelines can reduce the risk of childhood obesity," he said. Previous studies have shown either the opposite result when the baby starts eating solid foods associated with the opportunity to become obese when she grew older. This is especially for babies fed on formula milk, the transition to solid food could mean a significant increase in the number of calories you take them. In this study, Huh and colleagues observed the 850 infants and their parents for 3 years. When babies aged 6 months, the researchers asked parents whether they had been breastfed - and if so, for how long - and when they start giving their babies solid foods, like cereals, fruits and dairy products. When the baby is 3 years old, the researchers said their height and weight to determine which children are obese, defined as being among the top 5 percent of ideal body weight (BMI) for age and gender. For infants be exclusively breastfed for at least four months, before they start eating solid food, do not show them to be obese age 3 years. Irrespective of when they start eating solid food, baby milk mothers in the study only probable one of the 14 only to be obese as children pre-school. But the discovery, which was published in the journal Pediatrics , showed differences in babies fed milk formula starting from the very beginning, or who stop breastfeeding before the age of 4 months. these babies have the possibility of one of four being obese at age 3 years if they are eating solid foods before age 4 months. If waiting their parents until 4 or 5 months, possibly into one of 20 only. Likelihood of being obese increased again if babies do not start eating solid foods until they are at least 6 months, but only very few of these infants to researchers to make a clear decision about the risk to wait longer to give baby solid food. Throughout the world, doctors have been promoting the importance of breastfeeding in the first 4 to 6 month baby. However, in the U.S. about half of all babies were breast fed less than 4 months, or not breastfed at all, according to the Centers for Disease Control and Prevention . Breast milk is in itself reduce baby's risk of being obese.For babies who grew up with formula milk, it is important for parents to wait until the baby was at least four months before feeding them solid food, the researchers said. "While parents may have difficulty determining the correct amount to to feed a baby who is breast fed, it may also 'how babies eat and learn to eat affects their risk of obesity,' "said Huh. Dr. David McCormick, a pediatrician at The University of Texas Medical Branch at Galveston, said the most common problem he sees is parents adding cereal to formula milk without thinking about the extra calories that they give to their babies. "I think it is What many people do without realizing it, think the baby will become sick or grow faster, "said McCormick, who was not involved in the study. "That's how (adults) become overweight," he said. "They eat less than they should every day." The study showed that talking with parents about when to add solid food for a baby's diet is something that pediatricians should do on a regular basis, McCormick said. Given solids too early, either in combination with formula or separate, "is like preparing your child for obesity." Again, he said, "We know from other studies that if you're overweight or obese at age 3 years, you are likely to remain obese. "