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The fact that the widely-used diabetes pill, Metformin, is being trialled to prevent obese babies being born to overweight mothers is disturbing to me, and I am sure most other women as well."
Will Williams, scientific advisor for All About Weight, added that, although there were "reasonable grounds" for the trial, it was "a shame that it is needed at all".
He said: "We know Metformin is safe in pregnancy and has no negative effects on the child up to 2 years, but there is a lack of studies on older children.
"Women wanting to conceive could instead lose weight by following a healthy weight loss plan, including diet and exercise
In a national survey of 1,334 mothers, conducted by the Centers for Disease Control and Prevention, 40 percent said they gave their baby solid food before they were 4 months old, with 9 percent starting as early as 4 weeks. Doctors now recommend waiting until a baby is at least 6 months old. For at least 20 years, the American Academy of Pediatrics had advised against feeding babies solid food before they turned at least 4 months old. Last year, encouraged by growing evidence of the health benefits of breast milk, the group raised that age, saying babies should be fed nothing but breast milk for six months. When breast milk is not an option, formula is an acceptable alternative, the group says.
But the survey suggests that mothers are not aware of the recommendations or find them difficult to follow. Popular reasons for giving solid food to babies before 4 months included my baby is old enough, my baby seemed hungry, I wanted my baby to sleep longer at night and most alarming to researchers a doctor or health care professional said my baby should begin eating solid food. Clearly we need better dissemination of the recommendations on solid food introduction, said Kelley Scanlon, an epidemiologist with the C.D.C. and an author of the study. Health care providers need to provide clear and accurate guidance, and then provide support to help parents carry out those recommended practices.
The study suggested that economics were a factor in the decision to introduce solid food, with poorer women who saw formula as too expensive more likely to feed solids too soon. Women who were feeding their children exclusively formula or a mix of formula and breast milk were not only more likely to introduce solid food early, but to say their doctors gave them the go-ahead. It makes me want to know more about the other advice that those parents were getting on infant feeding, Dr. Scanlon said. Further, the women in the survey who turned to solid food early were more likely to be young, less educated and unmarried. They also had lower levels of income or education, and were more likely to participate in the Special Supplemental Nutrition Program for Women, Infants and Children.
While many pediatricians are sympathetic to the difficulties parents face feeding their child nothing but breast milk or formula for six months, they say little good can come from feeding solid food to a child before he or she is physically ready. When a baby is ready to start eating food, he will put his hands in his mouth, and you will see him actually making chewing motions, said Dr. T J Gold, a pediatrician with Tribeca Pediatrics in Brooklyn. At 2, 3 months, they cant even hold their heads up well, and they cant sit, making it difficult, if not dangerous, to put solid food in their mouths. They also have yet to develop the proper gut bacteria that allow them to process solid food safely, potentially leading to gastroenteritis and diarrhea, Dr. Gold said. The early introduction of solid foods has also been linked to increased risk of obesity, diabetes, eczema and celiac disease.
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The prevalence of weight problems has long been known about a third of U.S. kids are overweight or obese. But surprisingly little is known about which kids will develop obesity, and at what age. Researchers think there may be a window of opportunity to prevent it, and "we keep pushing our critical window earlier and earlier on," said Solveig Cunningham, a scientist at Emory University. "A lot of the risk of obesity seems to be set, to some extent, really early in life."
She led the new study, which was published in this week's New England Journal of Medicine and paid for by the federal government. It tracked a nationwide sample of more than 7,700 children through grade school. When they started kindergarten, 12 percent were obese and 15 percent were overweight. By eighth grade, 21 percent were obese and 17 percent were overweight. Besides how common obesity was at various ages, researchers focused on the 6,807 children who were not obese when the study started, at kindergarten entry. Here are some things they found:
WHO BECAME OBESE: Between ages 5 and 14, nearly 12 percent of children developed obesity 10 percent of girls and nearly 14 percent of boys. Nearly half of kids who started kindergarten overweight became obese teens. Overweight 5-year-olds were four times as likely as normal-weight children to become obese (32 percent versus 8 percent).
GRADE LEVELS: Most of the shift occurred in the younger grades. During the kindergarten year, about 5 percent of kids who had not been obese at the start became that way by the end. The greatest increase in the prevalence of obesity was between first and third grades; it changed little from ages 11 to 14.
RACE: From kindergarten through eighth grade, the prevalence of obesity increased by 65 percent among whites, 50 percent among Hispanics, almost 120 percent among blacks and more than 40 percent among others Asians, Pacific Islanders and Native Americans and mixed-race children. By eighth grade, 17 percent of black children had become obese, compared to 14 percent of Hispanics and 10 percent of whites and children of other races.
INCOME:
According to the report, the number of people carrying extra kilos climbed from 857 million globally in 1980 to more than two billion last year. Researchers report 62 percent of the worlds obese individuals live in developing countries. The findings come from an analysis of data gathered from 188 countries published in the British medical journal The Lancet. Investigators discovered the rates of overweight and obesity climbed 28 percent over the past 33 years with the biggest increase in children. Forty-seven percent of all youngsters and adolescents worldwide are now considered overweight or obese.
In developed countries, men have higher rates of obesity than women, although there's evidence that the pace of weight gain in the United States and other Western nations has begun to slow over the past eight years. Nowadays, food is prepared for us. Remember, in the past, it used to take some time to cook a dish," said Ali Mokdad, who teaches health metrics and evaluation at the University of Washington and co-authored the study. "Now a seven- or 10-year-old child could pop something in a microwave. Its safe and readily available," he said.
Obesity is a growing problem worldwide.
The authors found some of the highest rates of obesity in China, India, Russia, Egypt, Pakistan and Indonesia. Places with the highest percentage of overweight people include the island nation of Tonga, where 50 percent of the population has a weight problem, along with Libya, Qatar, Micronesia and Samoa, where more than 50 percent of women carry excess weight.
The health care costs of obesity, particularly to developing countries, are enormous, according to Mokdad. It has a toll on our disability, our diseases. And with an aging population living longer, no country in the world can afford to spend all its money on treatment. We should find a balance between treatment and prevention, he said. Without targeted interventions, obesity control programs and the sustained efforts of national governments, experts say it is unlikely countries will meet the United Nations' goal of halting the rise in obesity rates by 2025.
Study: Obesity, Overweight Rates Climbing Worldwide