A study led by Brian Moss of Wayne State University’s School of Social Work reveals that one third of infants in the U.S. are obese or at risk of obesity. In addition, of the 8,000 infants studied, those found to be obese at 9 months had a higher risk of being obese at 2 years. Other studies have revealed that Infant obesity increases the risk for later childhood obesity and could lead to other obesity-related health problems like heart disease, asthma, high blood pressure and cancer. According to the U.S. Centers for Disease Control and Prevention, childhood and infant obesity has more than tripled in the past 30 years.
Moss, in collaboration with William H. Yeaton from the Institute for Social Research at the University of Michigan in Ann Arbor, published their analysis, “Young Children’s Weight Trajectories and Associated Risk Factors: Results from the Early Childhood Longitudinal Study-Birth Cohort (ECLS-B),” in the January/February 2011 issue of the American Journal of Health Promotion. The ECLS-B draws from a representative sample of American children born in 2001 with diverse socioeconomic and racial/ethnic backgrounds. It is one of the first studies to monitor weight status changes of a nationally representative sample of very young children.
For their study, Moss and Yeaton used results from ECLS-B to follow the trajectory of the infants’ weight status at 9 months and 2 years, then performed statistical analyses to examine whether weight persistence, loss or gain was linked to demographic characteristics such as sex, race/ethnicity, geographic region or socioeconomic status. Children above the 95th percentile on standard growth charts were considered to have infant obesity, children in the 85th to 95th percentile were considered at risk for obesity.
Some of their results show that:
• 31.9 percent of 9-month-olds were at risk or obese;
• 34.3 percent of 2-year-olds were obese or at risk for obesity;
• 17 percent of the infants were obese at 9 months, rising to 20 percent at 2 years;
• 44 percent of the infants who were obese at 9 months remained obese at 2 years;
• Hispanic and low-income children were at greater risk for weight status gain;
• Females and Asian/Pacific Islanders were at lower risk for undesirable weight changes;
• 40 percent of 2-year-olds from the lowest income homes were at risk or obese compared to 27 percent of those from the highest income homes.
“This study shows that a significant proportion of very young children in the United States is at risk or is obese,” said Moss. The team notes a consistent pattern of obesity starting early in life. “As obesity becomes an increasing public health concern, these findings will help guide health practitioners by targeting high risk populations and foster culturally sensitive interventions aimed at prevention and treatment of obesity,” Moss said.
“We are not saying that overweight babies are doomed to be obese adults. However, we have found evidence that being overweight at 9 months puts you on track for being overweight or obese later in childhood.”
Consumption of Vitamin B during pregnancy does not increase the risk of allergy in the infants, says a new study from Japan that challenges previous findings. Maternal consumption of folate and vitamins B2, B6, and B12 during pregnancy was not associated with the risk of the infant developing asthma or eczema, according to findings from 763 infants published in Pediatric Allergy and Immunology.
The link between folate and folic acid, the synthetic form of the vitamin, and respiratory health is not clear cut, with contradictory results reported in the literature. A study from Johns Hopkins Children’s Center found that higher levels of folate were associated with a 16 per cent reduction of asthma in (Journal of Allergy & Clinical Immunology, June 2009, Vol. 123, pp. 1253-1259.e2). However, a Norwegian study reported that folic acid supplements during the first trimester were associated with a 6 per cent increase in wheezing, a 9 per cent increase in infections of the lower respiratory tract, and a 24 per cent increase in hospitalisations for such infections, (Archives of Diseases in Childhood, doi:10.1136/adc.2008.142448). In addition, researchers from the University of Adelaide in Australia reported that folic acid supplements in late pregnancy may increase the risk of asthma by about 25 per cent in children aged between 3 and 5 years (American Journal of Epidemiology, 2010, doi:10.1093/aje/kwp315).
Illumination from the Land of the Rising Sun?
The new study, performed by researchers from Fukuoka University, the University of Tokyo, and Osaka City University, goes beyond folate and folic acid, and reports no link between Vitamin B intake and the risk of asthma or eczema in children. “To the best of our knowledge, there has been no birth cohort study on the relationship between maternal consumption of Vitamin B during pregnancy and the risk of allergic disorders in the offspring,” wrote the researchers. The findings were based on data from 763 pairs of Japanese mother and child. A diet history questionnaire was used to assess maternal intakes of the various B vitamins during pregnancy, and the infants were followed until the age of 16 to 24 months. Japan has no mandatory fortification of flour with folic acid.
Results showed that, according to criteria from the International Study of Asthma and Allergies in Childhood, 22 and 19 percent of the children had symptoms of wheeze and eczema, respectively, but there was no association between these children and the dietary intakes of the various B vitamins by their mothers. “Our results suggest that maternal intake of folate, vitamin B12, vitamin B6, and vitamin B2 during pregnancy was not measurably associated with the risk of wheeze or eczema in the offspring,” said the researchers. “Further investigation is warranted to draw conclusions as to the question of whether maternal Vitamin B intake during pregnancy is related to the risk of childhood allergic,” they concluded.
According to the European Federation of Allergy and Airway Diseases Patients Association (EFA), over 30m Europeans suffer from asthma, costing Europe €17.7bn every year. The cost due to lost productivity is estimated to be around €9.8bn. The condition is on the rise in the Western world and the most common long-term condition in the UK today. According to the American Lung Association, almost 20m Americans suffer from asthma. The condition is reported to be responsible for over 14m lost school days in children, while the annual economic cost of asthma is said to be over $16.1bn.
Source: Pediatric Allergy and Immunology. Volume 22, Issue 1-Part-I, February 2011, Pages: 69–74 DOI: 10.1111/j.1399-3038.2010.01081.x
“Maternal B vitamin intake during pregnancy and wheeze and eczema in Japanese infants aged 16–24 months: The Osaka Maternal and Child Health Study”. Authors: Y. Miyake, S. Sasaki, K. Tanaka, Y. Hirota
New findings from the Monell Center reveal that weight gain of formula-fed infants is influenced by the type of formula the infant is consuming. The findings have implications related to the infant’s risk for the development of obesity, diabetes and other diseases later in life. “Events early in life have long-term consequences on health and one of the most significant influences is early growth rate,” said study lead author Julie Mennella, Ph.D., a developmental psychobiologist at Monell. “We already know that formula-fed babies gain more weight than breast-fed babies. But we didn’t know whether this was true for all types of formula.”
While most infant formulas are cow’s milk-based, other choices include soy-based and protein hydrolysate-based formulas. Protein hydrolysate formulas contain pre-digested proteins and typically are fed to infants who cannot tolerate the intact proteins in other formulas. In adults, pre-digested proteins are believed to act in the intestine to initiate the end of a meal, thus leading to smaller meals and intake of fewer calories. Based on this, the authors hypothesized that infants who were feeding protein hydrolysate formulas would eat less and have an altered growth pattern relative to infants feeding cow’s milk-based formula.
In the study, published online in the journal Pediatrics, infants whose parents had already decided to bottle-feed were randomly assigned at two weeks of age to feed either a cow’s milk-based formula (35 infants) or a protein hydrolysate formula (24 infants) for seven months. Both formulas contained the same amount of calories, but the hydrolysate formula had more protein, including greater amounts of small peptides and free amino acids. Infants were weighed once each month in the laboratory, where they also were videotaped consuming a meal of the assigned formula. The meal continued until the infant signaled that s/he was full.
Over the seven months of the study, the protein hydrolysate infants gained weight at a slower rate than infants fed cow milk formula. Linear growth, or length, did not differ between the two groups, demonstrating that the differences in growth were specifically attributable to weight. “All formulas are not alike,” said Mennella. “These two formulas have the same amount of calories, but differ considerably in terms of how they influence infant growth.”
When the data were compared to national norms for breast-fed infants, the rate of weight gain of protein hydrolysate infants was comparable to the breast milk standards; in contrast, infants fed cow’s milk formula gained weight at a greater rate than the same breast milk standards. Analysis of the laboratory meal revealed the infants fed the protein hydrolysate formula consumed less formula during the meal. “One of the reasons the protein hydrolysate infants had similar growth patterns to breast-fed infants, who are the gold standard, is that they consumed less formula during a feed as compared to infants fed cow’s milk formula” said Mennella. “The next question to ask is: Why do infants on cow’s milk formula overfeed?”
The findings highlight the need to understand the long-term influences of infant formula composition on feeding behavior, growth, and metabolic health. Future studies will utilize measures of energy metabolism and expenditure to examine how the individual formulas influence growth, and how each differs from breastfeeding. Also contributing to the study, which was funded by the National Institute of Child Health and Human Development, were Monell scientists Gary Beauchamp and Alison Ventura.
In the survey, commissioned by Act Against Allergy, further impact on family life was revealed. As a direct result of having a child with CMA, half (49%) the respondents have missed work, over a third (38%) have argued with their partner and 39% said the lives of other children in the family have also been disrupted.1
These findings were no surprise to Natalie Hammond, from Hertfordshire, UK, whose son Joe was diagnosed with CMA when he was six months old. Joe was initially misdiagnosed and even underwent surgery for a twisted bowel before doctors finally discovered that CMA was the cause of his illness. Mrs. Hammond said: “It was heartbreaking and frightening seeing Joe so sick – he would vomit and had blood in his stools. We felt utterly powerless, and couldn't believe a simple food like milk could do this. It took a long time to get over this terrifying and stressful experience.”
Cows' milk is one of the European Union's 'big eight' allergy-inducing foods alongside gluten, eggs, fish, peanuts, soya, treenuts and shellfish. More serious than lactose intolerance, a true milk allergy presents in one or more of three organ systems:
– Gastrointestinal (vomiting, diarrhoea, abdominal cramps, bloating) – affecting 50-60% of those with CMA
– Skin (rashes, including eczema and atopic dermatitis) – 50-70%
– Respiratory (wheeze, cough, runny nose) – 20-30%3
For further information on cows' milk allergy, see: www.actagainstallergy.com
Some people may be at risk of not getting enough vitamin D because they don’t get enough in their diet or because they have more limited sun exposure which reduces the amount of vitamin D their bodies make. Those at risk include:
Breastfed infants require 400 IU vitamin D per day from birth. Because breast milk is naturally low in vitamin D and infants are not usually exposed to the sun, a vitamin D supplement of 400 IU is recommended. Healthy term infants fed infant formula do not require a vitamin D supplement as it is already added to the formula.
- Pregnant women should consume vitamin D from food (for example, from a least 3 glasses of milk der day) or supplements (usually 200-400 IU is provided in a supplement) to ensure the baby is born with optimal vitamin D in their body. If a supplement is taken, be sure not to exceed 2000 IU vitamin D per day.
- Adults over 50 years may not prodce vitamin D in skin as well as when they were younger. It is recommended that adults (men and women) over 50 years take a supplement of 400 IU / day.
- People with skin darkly pigmented with melanin are less able to make vitamin D from exposure to sunlight. Since many people with darker skin colour also avoid vitamin D fortified milk due to lactose intolerance, their dietary intake of the vitamin may be low, so extra vitamin D, such as the amount typically found in a general multivitamin-mineral supplement (200-400 IU) would be a good idea.
- People with limited sun exposure sun exposure is limited due to mostly living or working indoors, wearing clothing such as long robes and head coverings, then it is wise to carefully choose vitamin D rich foods (see above) or to take a vitamin D supplement, such as the amount typically found in a general multivitamin-mineral supplement (200-400 IU).
Some medical conditions such as Crohn's disease, cystic fibrosis, celiac disease, surgical removal of part of the stomach or intestines, and some forms of liver disease, interfere with absorption of vitamin D. Being overweight and obese causes fat to stay stored in fat tissues and not be released into the blood, preventing vitamin D from being available to the body. If you have one of these conditions, check with your doctor to ask if a vitamin D supplement is needed.
Can I take too much vitamin D?
Yes. Too much vitamin D can be harmful. The total daily intake from food and supplements combined should not exceed 1000 IU for infants and young children and 2000 IU for adults.
The Bottom Line
Most people, except those in the risk groups noted above, can get enough vitamin D if they eat enough vitamin D rich foods (for example, milk, vitamin D fortified foods and some fatty fish) and if they engage in safe sun practices. If you are concerned about your vitamin D status, discuss the issue with Nastaran.
Source: Dietitians of Canada. Reproduced with Permission. Note: The Australian adequate intake is 200 IU however Nastaran recommends 400 IU as per the Canadian recommended intake.