Parents are giving babies solid food too early 93% of mothers introduce solid foods before their baby is six-months-old - the recommended age for weaning 40% try solids before their baby is four-months-old 9% introduce solids before their child is four-weeks-old Introducing solids too early could increase the child's risk of obesity, diabetes and coeliac disease Most parents are feeding their babies solid foods earlier than is recommended, experts are warning. American research has found that 93 per cent of mothers introduce solid foods into their child's diet before they reach six months of age - the recommended point at which most health experts believe they should start. Researchers at the Centres for Disease Control and Prevention in the U.S., who surveyed 1,334 new mothers, also found that 40 per cent had introduced solid food before their child reached four months old, and nine per cent had even offered solids to their baby before they were four weeks old. Almost 93 per cent of American mothers introduce solid foods into their child's diet before they reach six months of age They also discovered that poorer, younger and less well educated mothers were more likely to introduce solids too early. The reasons for this are thought to be that formula milk is seen as an expensive option, plus the myth that babies sleep better if fed on solids. But the researchers warned that feeding solid foods to babies before they are six months old could increase their risk of developing chronic diseases such as diabetes and coeliac disease. They also fear that introducing solids prematurely could increase a child's risk of obesity in later life. But healthcare professionals may be partly to blame, it seems. Kelley Scanlon, a co-author of the study and lead epidemiologist in the nutrition branch in the division of nutrition, physical activity and obesity at the CDC, told NBC News: "Fifty per cent said that their health care provider told them it was time to introduce solid food. That, for us, indicates that health care providers need to provide clearer guidance and really support women in carrying out the recommendation. Babies who are given solids too early could be at greater risk of obesity When asked why they had started introducing solid foods, the most common reason the mothers gave was that their baby was old enough. Others said that they did it because their child seemed hungry, because the baby wanted to eat the same food as its parents or because their doctor told them to. The researchers also found that mothers whose babies were fed formula milk, as opposed to breast milk, were much more likely to offer solids too early - 53 per cent of mothers who fed their babies formula introduced solids before their baby was six-months-old, compared to 24 per cent of mothers who exclusively breastfed. Nutritionists are concerned that eating solid foods too early may mean that babies drink less milk and that, as a result, they may receive less nourishment.