23 January 2015
According to a new US study there are lower micronutrient intakes and a higher prevalence of insufficient micronutrient supply among obese adults compared to normal weight adults.
The observational study compared the usual intake for essential nutrients between normal weight (BMI of 25 or less), overweight (BMI between 25 and 30) and obese (BMI of 30 or more) adult Americans using data from the big National Health and Nutrition Examination Survey (NHANES), 2001-2008 (1). The study results showed that while the majority of Americans are lacking adequate nutrient intake, overweight and obese adults are at a higher risk for insufficient nutrient intake. Compared to normal weight adults, obese adults had about 5% to 12% lower intakes of micronutrients and higher prevalence of inadequate nutrient supply. For example, 48% of normal weight individuals did not meet the recommended intakes for calcium, while 50% of overweight and 51% of obese individuals fell short of calcium requirements. Also, 45% of normal weight individuals showed insufficient vitamin A intakes, while 50% of overweight and 52% of obese individuals fell short of vitamin A requirements.
The researchers noted that the normal weight group ate the most, taking in 2,216 daily calories on average, compared to 2,002 calories for the overweight group and 2,154 for the obese group, which indicates that lifestyle factors, such as greater exercise for normal weight group, and possibly genetic factors are in play. The normal weight group also ate the most fruit, while the consumption of vegetables was level across the three groups. In addition, the study showed that dietary supplement users had higher overall intakes and a lower prevalence of inadequacy of micronutrients compared to non-supplement users. The NHANES data shows that a high percent of the population have problems meeting recommended nutrient intake for vitamins A, C, D and E, magnesium and calcium.
8 March 2014
A new study from the UK shows that adults with asthma and chronic obstructive pulmonary disease (COPD) who have lower levels of vitamin C in their blood are more vulnerable to the harmful effects of air pollution.
21 October 2013
According to a new study from France a diet rich in carotenoids such as beta-carotene, lutein and zeaxanthin during midlife may contribute to the maintenance of cognitive function in one’s old age.
14 November 2016
