More than half of the women in the United States are attempting to lose weight according to a study published by the National Health and Nutrition Examination Survey (NHANES) yesterday. A slightly lower percentage of men are trying to shed unwanted kilos, with a total percentage of 49.1 percent of men and women on diet and/or exercising in an endeavor to lose weight.
In a country where close to 40 percent of adults are categorized as obese, it shouldn’t come as a surprise that so many people are trying to lose weight. But what does “trying to lose weight” mean?
The study definition of “tried to lose weight” was based on two questions:
- Anyone with a current weight that was at least 10 lbs lower than their weight a year before was asked if that weight change was intentional. If it was, they were categorized as having tried to lose weight.
- All, including those who said the weight loss was not intentional, were asked if they had tried to lose weight “during the past 12 months.”
Study: Attempts to Lose Weight Among Adults in the United States
The study published on the US Centers for Disease Control and Prevention (CDC) website is based on data that was collected in the NHANES survey between 2013 and 2016. This most recent report presents some interesting statistics relating to an attempt to lose weight during 2016.
For instance, of the 56.4 percent women on diet and 41.7 percent of men trying to lose weight percentages were highest for white (non-Hispanic) adults (49.4 percent) and lowest for Asian (non-Hispanic) adults (41.4 percent). In between were (non-Hispanic) blacks (48 percent) and Hispanic adults (49.1 percent).
Weight loss methods related to both diet and exercise, with 62.9 percent eating less food, 62.9 percent exercising, and 50.4 percent eating more fruit, veggies, and salads. Additionally, 44.7 percent reported that they were drinking a lot of water in an endeavor to lose weight, and 42.4 percent said they were eating less fast foods or junk food. While only 16.4 percent said they skipped meals, 38.7 percent said they had changed their eating habits.
With the current trend for paleo, keto, and general high fat low carb diets, it is interesting that 35.3 percent had switched to foods with lower calories, 30.4 percent were eating fewer carbs, and 29.2 percent were consciously eating less fat.
The report states that men and women have variable motivations for attempting to shed unwanted kilos including appearance and health reasons and that percentages increased in relation to certain weight status categories and family income. This was relevant to both men and women on diet.
For this study, body mass index (BMI) was calculated as weight in kilograms divided by height in meters squared and then rounded to one decimal place. Overweight was defined as a BMI of 25 or above but less than 30; obesity as a BMI greater than or equal to 30; and normal or underweight was defined as a BMI that was less than 25.
Obesity in the USA
Most people are aware that obesity is associated with serious health risks, but in spite of this, a huge number of American adults are grossly overweight. Furthermore, studies indicate that the current prevalence of obesity in the USA is higher than the Healthy People 2020 goals of 30.5 percent of adults and 14.5 percent of young people.
Another NHANES study, Prevalence of Obesity Among Adults and Youth: United States, 2015-2016 shows that during this period of time 39.8 percent of US adults and 18.5 percent of those under the age of 20 were obese. Overall, middle-aged adults had a greater prevalence of obesity than younger adults:
- In the 40 to 59 age group, 42.8 percent were obese
- In the 20 to 39 age group, 35.7 percent were obese
Generally, children aged two to five years were slimmer, with only 13.9 percent showing a prevalence of obesity, increasing to 18.4 percent for six to 11-year-olds, and 20.6 percent for adolescents aged 12 to 19.
The survey also considered sex, race, and Hispanic origin, finding that the overall prevalence of obesity was higher among both Hispanic and non-Hispanic black adults than non-Hispanic Asian and white adults. This pattern was also observed among the younger age groups.
The report, published in October 2017, defined obesity in adults as a BMI no more than 30. In “youth” it was defined as “a BMI of greater than or equal to the age- and sex-specific 95th percentile of the 2000 CDC growth charts. BMI was calculated as weight in kilograms divided by height in meters squared and rounded to one decimal place.
You can calculate your BMI with the US NIH National Heart, Lung, and Blood Institute calculator. This is a really useful tool for both men and women on diet.