Pre-Diabetics With Hypovitaminosis D Have Higher Risk for Insulin Resistance
Clin Lab, 65 (5) 2019 May 1, PMID: 31115227 DOI: 10.7754/Clin.Lab.2018.181014
Remziye Nur-Eke, Mehmet Özen, Ayhan H Çekin
Overview Diabetes and vitamin D contains the following
- Diabetes is 5X more frequent far from the equator
- Children getting 2,000 IU of vitamin D are 8X less likely to get Type 1 diabetes
- Obese people get less sun / Vitamin D - and also vitamin D gets lost in fat
- Sedentary people get less sun / Vitamin D
- Worldwide Diabetes increase has been concurrent with vitamin D decrease and air conditioning
- Elderly get 4X less vitamin D from the same amount of sun
Elderly also spend less time outdoors and have more clothes on - All items in category Diabetes and Vitamin D 454 items: both Type 1 and Type 2
Vitamin D appears to both prevent and treat diabetes
- Appears that >2,000 IU will Prevent
- Appears that >4,000 IU will Treat , but not cure
- Appears that Calcium and Magnesium are needed for both Prevention and Treatment
- which are just some of the vitamin D cofactors
Number of articles in both categories of Diabetes and:
- Dark Skin 22; Intervention 49; Meta-analysis 28; Obesity 26; Pregnancy 39; T1 (child) 34; Omega-3 10; Vitamin D Receptor 18; Genetics 10; Magnesium 18 Click here to see details
Diabetic Epidemic
- Step back to 1994. Suppose an epidemic struck the United States, causing blindness, kidney failure, and leg amputations in steadily increasing numbers.
Suppose that in less than a decade's time, the epidemic had victimized one out of every eight people
That epidemic is real, and its name is diabetes, now the nation's sixth leading cause of death.
Chart from the web (2018?)
More than Vitamin D can reduce prediabetes
- Zinc cut in half the rate of prediabetes progressing to diabetes (20 mg) – RCT Oct 2017
- Prediabetes reduced in half by those getting Magnesium Chloride – RCT April 2015
- Magnesium is associated with prevention and treatment of Diabetes – Meta-analysis Aug 2016
- Note: both Zinc and Magnesium increase the activation of the Vitamin D Receptor, which gets more vitamin D to the tissues
- Prediabetes treated by Vitamin D (34 ng, 3500 IU per day) – meta-analysis May 2018
- Diabetics and prediabetics helped by 5,000 IU of Vitamin D for 6 months– RCT July 2019
- Prediabetes both prevented and treated by monthly Vitamin D, etc.
- Note: Bi-weekly or Monthly is often better than daily
Items in both categories Diabetes and non-daily intervention are listed here:
- Diabetic inflammation reduced by Vitamin D (30,000 IU weekly) – RCT July 2020
- 100,000 IU of Vitamin D3 or D2 given monthly for 4 months to diabetics– RCT Dec 2019
- Type 2 Diabetes inflammation reduced by 50,000 IU of Vitamin D bi-weekly and resistance training – RCT – June 2019
- Prediabetes both prevented and treated by monthly Vitamin D, etc.
- Peripheral diabetic neuropathy helped by weekly 50,000 IU vitamin D – Jan 2019
- Diabetic nephropathy (Kidney) treated by 50,000 IU of vitamin D weekly – RCT Jan 2019
- Vitamin D treatment of diabetes (50,000 IU every 2 weeks) augmented by probiotic – RCT June 2018
- Waist size reduced 3 cm by Vitamin D in those with Metabolic Syndrome – Jan 2017
- HbA1c levels (Diabetes) reduced by monthly 50,000 IU of vitamin D – Dec 2017
- Gestational Diabetes treated with 50,000 IU every two weeks – RCT Sept 2016
- Prediabetes reduced by monthly 60,000 IU of vitamin D – RCT May 2015
- Pain of Diabetic Neuropathy reduced with weekly 50,000 IU vitamin D– CT Feb 2015
- Type 1 diabetes helped with 50,000 IU of vitamin D every two weeks – Nov 2014
- Gestational Diabetes reduced with 50,000 IU of vitamin D every 3 weeks and daily Calcium – RCT June 2014
- Blood pressure in diabetics reduced by 12 weekly doses of 50,000 IU vitamin D – RCT Jan 2014
- 50,000 IU Vitamin D weekly Improves Mood, Lowers Blood Pressure in Type 2 Diabetics – Oct 2013
- Insulin resistance during pregnancy improved with 50,000 IU of vitamin D every 2 weeks – RCT April 2013
Background: Various studies have been reported on the relationship between vitamin D, whose deficiency has been identified in a pandemic way, and metabolic-endocrine diseases, including insulin resistance. Insulin resistance is an important public health issue since it is a common cause of death as it transforms into metabolic syndrome and type 2 diabetes mellitus (DM). In this study, the aim is to investigate the relationship between the level of serum 25 hydroxy vitamin D (25(OH)D) and insulin resistance.
Methods: A retrospective study was carried out including 2,008 patients aged between 18 - 67 chosen from among the patients who had applied to Saglik Bilimleri University Antalya Training and Research Hospital. Patients were divided into three groups as non-diabetic, pre-diabetic, and diabetic according to their blood glucose profile and into three categories according to their 25(OH)D levels. The relationship between serum vitamin D levels and insulin resistance was compared between the groups. Individuals with homeostasis model assessment of insulin re-sistance (HOMA-IR) > 2.5 were considered to have insulin resistance.
Results: The study was composed of 2,008 patients, 1,614 were female (80.4%). Of the participants, 216 (10.6%) were diabetics, 849 (42.3%) were pre-diabetics, and 943 (47.1%) were non-diabetics. It was identified that age, fasting blood glucose, HbA1c, triglyceride (Tg), very-low-density lipoprotein cholesterol (VLDL-C), fasting insulin, and HOMA-IR levels were significantly higher in diabetic patients than in pre-diabetic patients (all p < 0.001) and similarly higher in pre-diabetics than in non-diabetics. Tg, VLDL, fasting insulin, and HOMA-IR levels were significantly lower in the group with 25(OH)D ≥ 30 ng/mL.
Especially in pre-diabetic individuals, a significant negative correlation was observed between the 25(OH)D level and
- HbA1c (p = 0.020),
- Tg (p = 0.001),
- VLDL-C (p = 0.001),
- fasting insulin (p < 0.001) and
- HOMA-IR (p < 0.001).
While high HOMA-IR was positively associated with fasting blood glucose and total cholesterol values (all p < 0.001), it was negatively associated with age (p < 0.001), LDL-cholesterol (p < 0.001), HDL-cholesterol (p < 0.001) and 25(OH)D (p = 0.001).
Conclusions: Diabetic subjects have lower plasma 25(OH)D levels and pre-diabetics with hypovitaminosis D have higher risk for insulin resistance. Thus, HOMA-IR must be well evaluated in pre-diabetic individuals with vitamin D deficiency/insufficiency, if there is associating abdominal obesity.