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Zinc cut in half the rate of prediabetes progressing to diabetes (20 mg) – RCT Oct 2017

Zinc supplementation in prediabetes: A randomized double-blind placebo-controlled clinical trial.

J Diabetes. 2017 Oct 26. doi: 10.1111/1753-0407.12621. [Epub ahead of print]
Ranasinghe P1, Wathurapatha WS1, Galappatthy P1, Katulanda P2, Jayawardena R3,4, Constantine GR2.
1 Dept of Pharmacology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
2 Dept of Clinical Medicine, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
3 Dept of Physiology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
4 Institute of Health and Biomedical Innovation, Queensland Univ. of Technology, Brisbane, Queensland, Australia.


Excellent analysis of the study by Examine.com in Feb 2018


They also have a good backgrounder on Zinc and Health which includes

  • "Zinc has two standard dosages. The low dosage is 5-10mg, while the high dosage is 25-45mg. The low dose works well as a daily preventative, while the high dosage should be taken by anyone at risk for a zinc deficiency."
  • "Different forms of zinc contain different amounts of elemental zinc, which refers to the weight of the zinc molecule by itself"
  • "Zinc should be supplemented daily."
  • Consistant proof of benefits to diabetes, depression, acne, testosterone, viral warts (topical) , cognition after stroke, common cold

Note: The founder of VitaminDWiki subscribes to only 5 publications. Examine.com is one of them

 Download the Examine.com PDF from VitaminDWiki

See also VitaminDWiki

Overview Diabetes and vitamin D contains the following summary

  • 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 543 items: both Type 1 and Type 2

Vitamin D appears to both prevent and treat diabetes

Number of articles in both categories of Diabetes and:
'This list is automatically updated''

  • Dark Skin 24;   Intervention 56;   Meta-analysis 38;   Obesity 35;  Pregnancy 44;   T1 (child) 39;  Omega-3 11;  Vitamin D Receptor 24;  Genetics 13;  Magnesium 29    Click here to see details

Some Diabetes studies

50 ng of Vitamin D fights Diabetes

T1 Diabetes


Diabetes, Metabolic Syndrome and Magnesium - many studies

Diabetes category starts with the following

543 items In Diabetes category   34+ Prediabetes studies   64+ Type 1 Diabetes studies

see also Overview Diabetes and vitamin D  Overview Metabolic Syndrome and vitamin D

Autoimmune category listing has 198 items along with related searches

Zinc and Vitamin D category listing has 89 items and the following

Zinc half life in the body - hours or 4 months?
http://garthkroeker.blogspot.com/2009/07/zinc-eating-disorders.html 4 months
others indicate take Zinc several times per day to stop a cold

Zinc and prediabetes on the web

This study evaluated the effects of zinc supplementation on glycemic control, other cardiometabolic and anthropometric parameters, and disease progression in prediabetes.

A randomized double-blind placebo-controlled Phase 2 clinical trial was conducted over a 12-month period in 200 subjects (43% male; mean [± SD] age 51.8 ± 7.3 years), randomly assigned (1:  1) to the treatment or control group. The treatment group received zinc (20 mg daily). Subjects were evaluated at baseline and at 1, 3, 6, and 12 months. The primary outcome was the change in glycemic control from baseline. Multiple regression analyses were performed, with change in outcome variables after intervention from baseline used as continuous dependent variables.

In both groups, mean serum zinc concentrations prior to the trial were below normal (15.29-21.41 μmol/L). During the 12-month follow-up, a significantly higher percentage of participants developed type 2 diabetes in the control compared with zinc-treated group (25.0% vs 11.0% respectively; P = 0.016).

  • Fasting plasma glucose (FPG),
  • 2-h glucose levels in the oral glucose tolerance test (OGTT),
  • homeostasis model assessment of insulin resistance (HOMA-IR),
  • total cholesterol (TC), and
  • low-density lipoprotein cholesterol (LDL-C)

were significantly lower in the treated group, with significant improvement in β-cell function. In all four regression models, the best predictor of the dependent variables (i.e. change in FPG, 2-h glucose in the OGTT, HOMA-IR, and homeostatic model assessment of β-cell function) was zinc treatment.

Zinc supplementation reduced blood glucose and insulin resistance while improving β-cell function. Furthermore, supplementation reduced disease progression to diabetes and had beneficial effects on TC and LDL-C.

PMID: 29072815 DOI: 10.1111/1753-0407.12621

Created by admin. Last Modification: Sunday February 24, 2019 21:23:33 GMT-0000 by admin. (Version 11)

Attached files

ID Name Comment Uploaded Size Downloads
9424 Pharmacokinetics of Zinc in Pre-Diabetes - A Pilot Study.pdf admin 28 Feb, 2018 450.13 Kb 676
9423 Examine Zinc Diabetes.jpg admin 28 Feb, 2018 56.04 Kb 1897
9422 ERD Zinc Diabetes.pdf admin 28 Feb, 2018 615.96 Kb 1017