The Association between Sleep Duration and 25-Hydroxyvitamin D Concentration with Obesity in an Elderly Korean Population: A Cross-Sectional Study.
Nutrients. 2018 May 8;10(5). pii: E575. doi: 10.3390/nu10050575.
Doo M. Dept of Food and Nutrition, Kunsan National University, Daehak-ro 558, Kunsan, Jeonbuk 54150, Korea. miae_doo at kunsan.ac.kr.
- Sleep category listing has
77 items along with related searches
- Sleep half hour longer if OK level of Vitamin D (2-year olds) – April 2018
- Vitamin D improves sleep and reduces pain – review of studies July 2017
- Poor sleep strongly associated with pain in seniors (both associated with low vitamin D) – March 2015
Overview Obesity and Vitamin D contains the following summary
- FACT: People who are obese have less vitamin D in their blood
- FACT: Obese need a higher dose of vitamin D to get to the same level of vit D
- FACT: When obese people lose weight the vitamin D level in their blood increases
- FACT: Adding Calcium, perhaps in the form of fortified milk, often reduces weight
- FACT: 153 trials for vitamin D intervention of obesity as of Sept 2020
- FACT: Less weight gain by senior women with > 30 ng of vitamin D
- FACT: Dieters lost additional 5 lbs if vitamin D supplementation got them above 32 ng - RCT
- FACT: Obese lost 3X more weight by adding $10 of Vitamin D
- FACT: Those with darker skins were more likely to be obese Sept 2014
- OBSERVATION: Many mammals had evolved to add fat and vitamin D in the autumn
- and lose both in the Spring - unfortunately humans have forgotten to lose the fat in the Spring
- SUGGESTION: Probably need more than 4,000 IU to lose weight if very low on vitamin D due to
risk factors such as overweight, age, dark skin, live far from equator,shut-in, etc.
- Obesity category has
- Normal weight Obese (50 ng = 125 nanomole)
Download the PDF from VitaminDWiki
The living together was classified as “no”, with “unmarried, divorced, bereavement”
Many nice features if > 20 ng of vitamin D
Studies have recently reported an association between sleep duration and obesity in some individuals. Vitamin D deficiency is common in elderly populations and is also associated with obesity. In this study, the combined interaction effect of vitamin D levels and sleep duration on obesity-related variables was analyzed in 3757 individuals from an elderly Korean population using the Korean National Health and Nutrition Examination Survey. Significant differences were observed in the interaction effect of the vitamin D levels and sleep duration on obesity-related variables, including BMI (p = 0.004) and the risk of obesity (p < 0.001).
Using vitamin D sufficient status and proper sleep duration as a reference, subjects with sufficient vitamin D did not differ in their risk of obesity regardless of their sleep duration.
However, the risk of obesity tended to increase with short sleep duration rather than proper sleep duration among subjects who were vitamin D insufficient odds ratio (OR) (95% CI) = 1.293 (1.10⁻1.657) for proper sleep duration vs. 1.374 (1.066⁻1.770) for short sleep duration).
Only the participants in the vitamin D deficient population who consumed less protein showed an increasing trend in the risk of obesity according to the sleep duration (OR (95% CI) = 1.645 (1.155⁻2.344) for proper sleep duration and 1.668 (1.156⁻2.406) for short sleep duration).
PMID: 29738471 DOI: 10.3390/nu10050575Obese elderly with low vitamin D decreases sleeping well by 30 percent and living together by 8 percent – May 2018
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