Table of contents
- Vitamin D Supplementation and Genetic Polymorphisms Impact on Weight Loss Diet Outcomes in Caucasians: A Randomized Double-Blind Placebo-Controlled Clinical Study
- VitaminDWiki Obesity RCTs:
33 items - VitaminDWiki Obesity amd Genes:
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Vitamin D Supplementation and Genetic Polymorphisms Impact on Weight Loss Diet Outcomes in Caucasians: A Randomized Double-Blind Placebo-Controlled Clinical Study
Front Med (Lausanne). 2022 Mar 3;9:811326. doi: 10.3389/fmed.2022.811326. eCollection 2022.
Konstantinos Xenos 1 2 3, Maria Papasavva 2, Athanasios Raptis 2, Martha-Spyridoula Katsarou 2, Nikolaos Drakoulis 2None of gene mutations resulted in a statistically significant changes in this small study
Vitamin D deficiency or insufficiency is common in obese people, with some studies suggesting that low vitamin D level might be an independent predictor of obesity. Thus, the purpose of the present randomized, double-blind, placebo-controlled study was to investigate the effect of oral spray vitamin D3 3000 IU supplementation along with personalized weight-loss diet on obesity markers in overweight and obese Caucasians with vitamin d deficiency or insufficiency. The impact of vitamin D receptor (VDR) and adrenergic receptors (ADRs) genetic variants on vitamin D levels and weight loss diet outcomes was also investigated. After signing informed consent, a total of 125 eligible volunteers were randomly assigned into vitamin D (vitamin D3 3000 IU/d oral spray supplementation, n = 76) or placebo (xylitol, water, mint, n = 49) group following a weight loss program (600 calories less than the total energy expenditure of each volunteer) for 3 months. Fat mass, BMI, REE and 25(OH)D serum level were monitored on baseline and each month. DNA samples were extracted from buccal swabs and genotyped for the rs2228570 (VDR), rs1544410 (VDR), rs731236 (VDR), rs1800544 (ADRA2A), rs1801252 (ADRB1), rs1042713 (ADRB2), and rs4994 (ADRB3) polymorphisms. Statistical analysis was performed using SPSS package (v.23). Between group comparisons revealed significant improvement in serum 25(OH)D level and greater reduction in weight, BMI and fat percentage in the vitamin D group compared to placebo group (p < 0.05). In the vitamin D group, carriers of the rs2228570 T allele tended to have greater vitamin D level improvement compared with the homozygous C allele (p = 0.067). Furthermore, heterozygous (CT) for the rs731236 tended to have lesser weight loss (p = 0.068) and for the rs1042713, a lower decline in fat percentage was observed for homozygous AA carriers compared to the heterozygous (p = 0.051). In the control group, differences in weight loss (p = 0.055) and BMI (p = 0.045) were observed between rs1544410 AA and GG homozygous. In conclusion, vitamin D oral spray supplementation seems to improve vitamin D status and decrease obesity markers during a weight-loss intervention in overweight/obese Caucasians with vitamin D deficiency or insufficiency. Also, the results of the present study indicate that VDR and ADRs genetic polymorphisms seem to influence vitamin D supplementation response and obesity markers.
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VitaminDWiki Obesity RCTs:
33 items This list is automatically updated
- Overweight needed more EPA (4 grams) to fight depression – RCT Aug 2022
- Response to Vitamin D varies with genes (3,000 IU, weight loss in this RCT) – March 2022
- Weight loss on low-calorie diet: 7 lbs more lost if got lots of Vitamin D – June 2021
- Overweight elderly respond well to 3600 IU Vitamin D daily for a year – RCT May 2021
- Little weight loss in obese children from very small amount of vitamin D (1200 IU) – RCT April 2020
- 20,000 IU of Vitamin D weekly gave many benefits – RCT Aug 2019
- 2.3 X more weight loss in those who had low vitamin D levels and took some – Dec 2019
- Obese lost 3X more weight with Vitamin D - July 2018
- Severely Obese not helped much by 50,000 IU of vitamin D weekly for 8 weeks – RCT June 2019
- Gut genes related to important disease changed in Obese with 2,000 IU for 12 weeks – May 2019
- Obese responded to weekly vitamin D better than non-obese – RCT March 2018
- Daily, monthly Vitamin D had similar great benefits, more than 6 months needed – RCT Dec 2018
- Obese lost more weight on diet if added 50,000 IU of vitamin D weekly – many RCTs
- Lost 19 lbs more if add vitamin D to calorie restriction and walking program– July 2018
- Half of obese black teens achieved at least 30 ng of Vitamin D with 5,000 IU daily – June 2018
- Response by obese to weekly 50,000 IU of Vitamin D – May 2018
- Severe Non-Alcoholic fatty liver disease treated by Omega-3 – RCT April 2018
- Waist size reduced 3 cm by Vitamin D in those with Metabolic Syndrome – Jan 2017
- Less weight gain if add Vitamin D, even if have a high fat diet (in rats) – RCT Dec 2017
- Fatty liver disease in children nicely treated by combination of Vitamin D and Omega-3 – RCT Dec 2016
- Increased Testosterone and Erectile function, decreased weight with Vitamin D – March 2017
- 5,000 IU daily or 50,000 IU Vitamin D weekly repleted many dark skinned adolescents – RCT Dec 2015
- Overweight and obese lost 12 lbs with vitamin D in 6 months– RCT May 2015
- 24 ng lower response to Vitamin D due to obesity, low initial Vitamin D, and genetics – RCT Feb 2015
- Diabetic hypertension reduced with Vitamin D and Calcium – RCT March 2015
- Dieters lost 5 more pounds if achieved more than 32 ng of vitamin D – RCT March 2014
- 50,000 IU vitamin D weekly increased levels by 52 ng normally, but only 28 ng if obese – Oct 2013
- 50,000 IU vitamin D 1-3 times per week helped obese patients in rehab. – May 2013
- Obesity not reduced with 7,000 IU vitamin D daily – April 2013
- Higher BMI decreased response to 700 IU vitamin D – RCT 2008
- Insulin sensitivity in obese adolescents greatly improved with 4000 IU of vitamin D - RCT April 2013
- 7000 IU vitamin D was not enough to reduce obese tissue – Jan 2013
- 5700 IU vitamin D improved various growth factors in overweight people – Oct 2012
VitaminDWiki Obesity amd Genes:
15 items This list is automatically updated
- Response to Vitamin D varies with genes (3,000 IU, weight loss in this RCT) – March 2022
- High-fat diet reduces CYP2R1 gene needed to make semi-activated vitamin D (mice) – Aug 2021
- Hypothesis: Obesity reduces Vitamin D production by repressing CYP2R1 gene in liver and fat tissue – July 2020
- Increased risk of weight gain when gene restricts Vitamin D getting to tissues (CYP24A1 in this case) – Nov 2019
- Obesity associated with poor Vitamin D genes (VDR in this study) – Jan 2018
- Gut genes related to important disease changed in Obese with 2,000 IU for 12 weeks – May 2019
- Obesity cut semi-activation of Vitamin D in half (mice) – Jan 2019
- Obesity might be related to Vitamin D genes – July 2018
- Vitamin D restricted in getting to cells by genes, obesity, etc – Jan 2017
- Multiple Sclerosis and obesity share some gene problems (as well as low vitamin D) – June 2016
- Vitamin D may block the obesity gene (FTO) – Jan 2014
- Vitamin D roles in obesity: genetics and cell signaling – June 2013
- Obese have 50 percent less of two enzymes in fatty tissue to process vitamin D – May 2013
- No apparent genetic association between vitamin D and obesity – Feb 2013
- Genes indicate that Obesity causes vitamin D deficiency – Feb 2013
Response to Vitamin D varies with genes (3,000 IU, weight loss in this RCT) – March 2022Printer Friendly Follow this page for updates420 visitors, last modified 22 Mar, 2022, This page is in the following categories (# of items in each category)Attached files
ID Name Comment Uploaded Size Downloads 17280 Vit D change 2228570.jpg admin 22 Mar, 2022 12:25 35.22 Kb 47 17279 Wt loss 731236.jpg admin 22 Mar, 2022 12:25 34.55 Kb 109 17278 wt loss.jpg admin 22 Mar, 2022 12:24 32.76 Kb 133 17277 BMI 1544410.jpg admin 22 Mar, 2022 12:24 34.69 Kb 92 17276 Gene influences not statistically significant.jpg admin 22 Mar, 2022 12:23 49.90 Kb 118 17275 Weight Loss Vit D, genes.pdf PDF 2022 admin 22 Mar, 2022 12:23 1.21 Mb 106 - VitaminDWiki Obesity amd Genes: