Nav: Home

High vitamin D levels linked to lower cholesterol in children

June 07, 2018

There is a link between higher serum vitamin D levels and lower plasma cholesterol levels in primary school children, new research from the University of Eastern Finland shows. Children whose serum 25-hydroxyvitamin D levels exceeded 80 nmol/l had lower plasma total and low-density lipoprotein (LDL) cholesterol levels than children whose serum 25-hydroxyvitamin D levels were below 50 nmol/l, which is often regarded as a threshold value for vitamin D sufficiency. 25-hydroxyvitamin D is the major circulating form of vitamin D. The findings were reported in one of the leading journals of endocrinology, the Journal of Clinical Endocrinology and Metabolism.

Vitamin D is known to be essential for bone metabolism, and low serum 25(OH)D levels increase the risk of rickets, osteomalacia, and osteopenia. Vitamin D may also improve plasma lipid levels and have beneficial impact on other risk factors of cardiovascular diseases. However, evidence on these other health effects of vitamin D is still scarce and partially conflicting, and therefore not a sufficient basis for giving recommendations.

Lifestyle factors, such as healthy diet, physical activity, and spending time outdoors leading to the production of vitamin D in the skin, may be linked to both higher serum vitamin D levels and lower plasma lipid levels. The researchers found that the link between higher serum vitamin D levels and lower plasma cholesterol levels was independent of body adiposity, dietary factors, physical activity, parental education, and daylength prior to blood sampling. Moreover, hereditary factors that have previously been linked to serum vitamin D levels did not modify the observed association. More research is needed to uncover the reasons behind the inverse association of serum vitamin D with plasma lipid levels.

The new findings provide support for the importance of following recommendations for vitamin D intake, which vary from country to country. The most important dietary sources of vitamin D are vitamin D fortified products such as dairy products and spreads, and fish. In addition to the dietary intake, vitamin D supplement use is also recommended for the general population in several countries. The recommended use of vitamin D supplements varies a lot among these countries (mostly 5-50 μg/d, corresponding to 200-2000 IU/d) depending on age group and other factors. Vitamin D is synthetized endogenously in the skin in the presence of UV-radiation from the sun. However, in northern latitudes, the exposure to sunlight alone is inadequate to maintain sufficient serum 25(OH)D levels, especially during the winter.

The study was part of the Physical Activity and Nutrition in Children (PANIC) Study, which is a lifestyle intervention study in the Institute of Biomedicine at the University of Eastern Finland. A total of 512 children aged 6 to 8 years participated in the baseline measurements in 2007-2009, constituting a representative sample of their age group. The PANIC Study produces scientifically valuable information on children's lifestyles, health, and well-being.
-end-


University of Eastern Finland

Related Physical Activity Articles:

The benefits of physical activity for older adults
New findings published in the Scandinavian Journal of Medicine & Science in Sports reveal how physically active older adults benefit from reduced risks of early death, breast and prostate cancer, fractures, recurrent falls, functional limitations, cognitive decline, dementia, Alzheimer's disease, and depression.
Physical activity may protect against new episodes of depression
Increased levels of physical activity can significantly reduce the odds of depression, even among people who are genetically predisposed to the condition.
Is physical activity always good for the heart?
Physical activity is thought to be our greatest ally in the fight against cardiovascular disease.
Physical activity in lessons improves students' attainment
Students who take part in physical exercises like star jumps or running on the spot during school lessons do better in tests than peers who stick to sedentary learning, according to a UCL-led study.
Physical activity may attenuate menopause-associated atherogenic changes
Leisure-time physical activity is associated with a healthier blood lipid profile in menopausal women, but it doesn't seem to entirely offset the unfavorable lipid profile changes associated with the menopausal transition.
Are US adults meeting physical activity guidelines?
The proportion of US adults adhering to the 'Physical Activity Guidelines for Americans' from the US Department of Health and Human Services didn't significantly improve between 2007 and 2016 but time spent sitting increased.
Children from disadvantaged backgrounds do less vigorous physical activity
Children from disadvantaged backgrounds and certain ethnic minority backgrounds, including from Pakistani and Bangladeshi backgrounds, have lower levels of vigorous physical activity, according to researchers at the University of Cambridge.
Light, physical activity reduces brain aging
Incremental physical activity, even at light intensity, is associated with larger brain volume and healthy brain aging.
Decline in physical activity often starts as early as age 7
Overall physical activity starts to decline already around the age of school entry.
Is it ever too late for adults to benefit from physical activity?
It may never be too late for adults to become physically active and enjoy some health benefits.
More Physical Activity News and Physical Activity Current Events

Trending Science News

Current Coronavirus (COVID-19) News

Top Science Podcasts

We have hand picked the top science podcasts of 2020.
Now Playing: TED Radio Hour

Listen Again: Reinvention
Change is hard, but it's also an opportunity to discover and reimagine what you thought you knew. From our economy, to music, to even ourselves–this hour TED speakers explore the power of reinvention. Guests include OK Go lead singer Damian Kulash Jr., former college gymnastics coach Valorie Kondos Field, Stockton Mayor Michael Tubbs, and entrepreneur Nick Hanauer.
Now Playing: Science for the People

#562 Superbug to Bedside
By now we're all good and scared about antibiotic resistance, one of the many things coming to get us all. But there's good news, sort of. News antibiotics are coming out! How do they get tested? What does that kind of a trial look like and how does it happen? Host Bethany Brookeshire talks with Matt McCarthy, author of "Superbugs: The Race to Stop an Epidemic", about the ins and outs of testing a new antibiotic in the hospital.
Now Playing: Radiolab

Dispatch 6: Strange Times
Covid has disrupted the most basic routines of our days and nights. But in the middle of a conversation about how to fight the virus, we find a place impervious to the stalled plans and frenetic demands of the outside world. It's a very different kind of front line, where urgent work means moving slow, and time is marked out in tiny pre-planned steps. Then, on a walk through the woods, we consider how the tempo of our lives affects our minds and discover how the beats of biology shape our bodies. This episode was produced with help from Molly Webster and Tracie Hunte. Support Radiolab today at Radiolab.org/donate.