CDC applied Bayesian multilevel models to estimate diabetes and obesity prevalence in all 3,141 U.S. counties for 2007. The estimates show high rates in West Virginia, Appalachian Tennessee and Kentucky, the Mississippi Delta and a belt across the South.
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Obesity
Weight, obesity and weight loss.
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Food
High fructose corn syrup the cause of obesity epidemic, new study suggests
A Princeton study in Pharmacology, Biochemistry and Behavior reports rats drinking high fructose corn syrup gained more weight than rats given table sugar in equal quantity, and that long-term use raised abdominal fat and triglycerides. Bart Hoebel says this holds under their test conditions.
Lifestyle
Bad News Ladies, It Takes More Exercise Than You Think
A JAMA study followed more than 34,000 non-dieting women, average age 54, for 13 years and found it took about an hour a day of moderately intense activity to fend off weight gain in those not already overweight. Only about 13% of the women managed that much.
Obesity
How to Easily Cut Your Calories -- Eat Slowly
Eating fast appears to mean eating more. In one study, people given identical servings of ice cream released more fullness hormones when they took 30 minutes over it than when they took five. Chewing longer also curbs portions and aids digestion, since most digestive enzymes are in the mouth.
Lifestyle
Childhood obesity linked to premature death in adulthood
Following 4,857 American Indian children for about 24 years, researchers found those in the highest quartile of BMI were more than twice as likely to die of endogenous causes, and the most glucose-intolerant 73 percent more likely, than those in the lowest.
Diet
Childhood obesity linked to later onset of puberty in boys
Following 401 boys from ages 2 to 12, researchers found later onset of puberty in 14 percent of obese boys and 13.3 percent of overweight boys, against 7 percent of those at a normal body mass index.
Obesity
Even moderate obesity not a death risk factor
A University of Michigan analysis of Health and Retirement Study data found moderately obese and overweight middle-aged adults faced no excess death risk, while a BMI above 35 did raise it. Morbid obesity accounted for 4 percent of women's deaths against smoking's 36 percent.
Lifestyle
Obese women less likely to breastfeed their babies
Analyzing 2,846 black and 3,517 white women surveyed from 2000 to 2005, researchers found 67.2% of white women breastfed versus 41.2% of black women, and white women nursed longer. Among white women, the odds of starting fell as BMI rose; the link was not significant among black women.
Obesity
Low Carb Diet Lowers Blood Pressure
In 146 patients with heart disease or diabetes followed 48 weeks, a low-carbohydrate diet and the weight-loss drug orlistat produced similar weight loss, 9.5 versus 8.5 percent. Only the low-carb group's blood pressure fell, 6 percent systolic and 4.5 points diastolic.
Lifestyle
Adolescent obesity boosts multiple sclerosis risk
The FDA approved Ampyra (dalfampridine) to improve walking in multiple sclerosis; trials showed walking speed rose 10 to 30 percent in many patients, but side effects were more common than with placebo. A 2009 Neurology study suggests childhood and adolescent obesity may raise MS risk.
Obesity
Research on Childhood Obesity May Help Fight Epidemic
ARS-funded researchers at Baylor's Children's Nutrition Research Center found only 3 percent of kids' combo meals at 10 Houston fast-food chains met seven National School Lunch Program standards. Meals that failed averaged 2.3 calories per gram against 1.5 for those that passed.
Lifestyle
Lose Sleep, Gain Weight: Another Piece of the Obesity Puzzle
Angela Spivey reports that epidemiologic and experimental studies correlate shorter sleep with obesity, hypertension and other metabolic disorders, and that researchers increasingly tie this to circadian disruption from light, noise and round-the-clock schedules.
Obesity
CoQ10 Found to Fight Obesity
Mice fed a high-fat, high-fructose diet plus coenzyme Q10 had lower inflammatory and metabolic stress markers in their livers than mice on the diet alone, according to a Biochemical Pharmacology study suggesting CoQ10 may protect against or slow fatty liver linked to obesity.
Obesity
It's the genetics, stupid!
A Nature study scanned the genomes of 300 severely obese children and 7,000 controls and found missing copy number variants, including a deleted part of chromosome 16 that carries SH2B1, a gene involved in regulating weight and handling blood sugar.
Obesity
Genetic variants linked to severe obesity
Cambridge and Wellcome Trust researchers scanned genomes of 300 severely obese children and 7,000 controls and report in Nature that a missing segment of chromosome 16, including the SH2B1 gene, is linked to severe childhood obesity. An earlier study tied a variant at 10q11.22 to BMI.
Cancer
Obesity, dietary fats affect prostate cancer risk
In a study of 40 men aged 50 to 80, half with prostate cancer, BMI was higher among the patients but not significantly so, though it tracked with tumor aggressiveness. Their total, saturated and unsaturated fat intake was higher, and omega-3, vitamin C and lycopene intake lower.
Disease
Obesity Linked to 100,000 Cancer Cases a Year
The American Institute for Cancer Research put numbers to obesity's cancer toll, attributing to body fat 49% of endometrial cancers, 35% of esophageal, 28% of pancreatic, 24% of kidney, 21% of gallbladder, 17% of breast and 9% of colorectal cases.
Cancer
Obesity related to more than 100,000 cancer cases a year
The American Institute for Cancer Research estimates poor diet, inactivity and excess body fat account for more than 100,000 US cancer cases a year, including over 33,000 breast cancers. Panel member Laurence Kolonel cites esophageal, pancreatic, kidney, breast and colorectal cancers.
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