Chromium

The effectiveness of nutritional supplements in improving polycystic ovary syndrome in women: a systematic review and network meta-analysis.

Zhao G, Fan Y, Li R, Huang Y, Li W, Zhao Y · Reproductive biology and endocrinology : RB&E · 2025 · n=501

Nutritional supplements are known to ameliorate polycystic ovary syndrome (PCOS) and have been shown to modulate endocrine and metabolic markers, oxidative stress markers and inflammatory biomarkers in patients with PCOS. A variety of nutritional supplements have been applied in clinics, but a more comprehensive ranking of their efficacy has not yet been investigated. To assess the comparative effectiveness of nutritional supplements in women with PCOS. A systematic search was conducted across PubMed, EMBASE, Web of Science, and the Cochrane Library for randomized controlled trials (RCTs) that met the inclusion criteria up to October 12, 2023. We performed a network meta-analysis (NMA) to evaluate the effectiveness of various nutritional supplements on different indicators of PCOS by synthesizing both direct and indirect evidence from the trials. Seventy-nine RCTs involving 5,501 participants were enrolled in the NMA. It suggested that chromium was notably effective in improving fol

Comparative effects of vitamin and mineral supplements in the management of type 2 diabetes in primary care: A systematic review and network meta-analysis of randomized controlled trials.

Xia J, Yu J, Xu H, Zhou Y, Li H, Yin S · Pharmacological research · 2023 · n=14223

Medical nutrition treatment can manage diabetes and slow or prevent its complications. The comparative effects of micronutrient supplements, however, have not yet been well established. We aimed at evaluating the comparative effects of vitamin and mineral supplements on managing glycemic control and lipid metabolism for type 2 diabetes mellitus (T2DM) to inform clinical practice. Electronic and hand searches for randomized controlled trials (RCTs) were performed until June 1, 2022. We selected RCTs enrolling patients with T2DM who were treated with vitamin supplements, mineral supplements, or placebo/no treatment. Data were pooled via frequentist random-effects network meta-analyses. A total of 170 eligible trials and 14223 participants were included. Low to very low certainty evidence established chromium supplements as the most effective in reducing fasting blood glucose levels and homeostasis model assessment of insulin resistance (SUCRAs: 90.4% and 78.3%, respectively). Vitamin K s

Effects of chromium supplementation on glycemic control in patients with type 2 diabetes: a systematic review and meta-analysis of randomized controlled trials.

Asbaghi O, Fatemeh N, Mahnaz RK, Ehsan G, Elham E, Behzad N · Pharmacological research · 2020

We aimed to investigate the effect of chromium supplementation on glycemic control indices in patients with type 2 diabetes (T2DM). Randomized controlled trials examining the effect of chromium supplementation on glycemic control indices and published before February 2020 were detected by searching online databases, including PubMed, Scopus, Embase, Web of sciences and The Cochrane Library, using a combination of suitable keywords. Mean change and standard deviation (SD) of the outcome measures were used to estimate the mean difference between the supplementation group and the control group at follow-up. Twenty-eight studies reported fasting plasma glucose (FPG), insulin, hemoglobin A1C (HbA1C) and homeostatic model assessment for insulin resistance (HOMA-IR) as an outcome measure. Results revealed significant reduction in FPG (weighted mean difference (WMD): -19.00 mg/dl, 95% CI: -36.15, -1.85, P = 0.030; I2: 99.8%, p < 0.001), insulin level (WMD: -12.35 pmol/l, 95% CI: -17.86, -

Chromium supplementation and type 2 diabetes mellitus: an extensive systematic review.

Georgaki MN, Tsokkou S, Keramas A, Papamitsou T, Karachrysafi S, Kazakis N · Environmental geochemistry and health · 2024

Diabetes is a global public health concern with increasing prevalence worldwide. Chromium (Cr), a trace element found in soil, water, and food, has been proposed to have a possible positive effect in glucose metabolism and diabetes mellitus prevention. However, the relationship between trivalent chromium [Cr(III)] exposure, mainly through the consumption of diet supplements, and type 2 diabetes mellitus (T2DM) remains controversial. An extensive systematic review of the current literature on randomized controlled studies (RCTs) was conducted from 1 January 2000, to January 2024 using the databases PubMed, Scopus, ScienceDirect, and Cochrane, with specific keywords and inclusion as well as exclusion criteria. After close screening of the research studies retrieved from the mentioned websites was conducted, the most related studies were included in the final systematic review. The studies were evaluated for the degree of relevance, quality, and risk bias, using appropriate quality assess

Vitamin and trace elements imbalance are very common in adult patients with newly diagnosed Celiac disease.

Nuermaimaiti K, Li T, Li N, Shi T, Liu W, Abulaiti P · Scientific reports · 2025

Patients with celiac disease are at risk of micronutrient deficiencies due to long-term inflammation of the small intestine. Therefore, our aim was to investigate the correlation between CeD and micronutrients. A cross-sectional study enrolled a total of 59 newly diagnosed celiac patients and 59 controls. Levels of 17 vitamins and 10 trace elements were measured. Symptoms, serum IgA anti-TG2 (tTG-IgA), BMI, albumin, hemoglobin, and Marsh classification were recorded. The levels of micronutrients were compared between cases and controls, and correlations between micronutrients and other factors were analyzed. Celiac patients had lower levels of BMI, albumin, hemoglobin, vitamins A, E, K2 (MK-7, MK-4), B6, and B7, as well as zinc, and higher levels of vitamin B3 and chromium than controls (p < 0.05). The deficiency rates of vitamins A, E, and K2 (MK-7) and the excess rate of vitamin B3 were significantly higher than in controls (p < 0.05). Vitamin C, iro

Nutritional Supplements and Complementary Therapies in Polycystic Ovary Syndrome.

Alesi S, Ee C, Moran LJ, Rao V, Mousa A · Advances in nutrition (Bethesda, Md.) · 2022

Polycystic ovary syndrome (PCOS) affects 1 in 5 women of reproductive age, and is characterized by menstrual irregularities, clinical or biochemical hyperandrogenism, and the presence of polycystic ovary morphology. One of the recommended treatment strategies in the international evidence-based guidelines is lifestyle modification, which includes diet and exercise, with the aim of improving a range of health outcomes. The incurable nature of PCOS reinforces the importance of developing novel and innovative symptomatic relief strategies, which are currently the only available approaches for improving quality of life for these women. Women with PCOS tend to be nutrient deficient in many common vitamins and minerals, thought to be associated with the psychological (depression, anxiety, etc.) and physiological (insulin resistance, diabetes, infertility, etc.) sequelae of the condition. Nutrient supplementation and the integration of complementary medicine as adjuncts to traditional lifesty

Levothyroxine Interactions with Food and Dietary Supplements-A Systematic Review.

Wiesner A, Gajewska D, Paśko P · Pharmaceuticals (Basel, Switzerland) · 2021

Levothyroxine (l-thyroxine, l-T4) is a drug of choice for treating congenital and primary hypothyroidism. Although clinically significant interactions between l-T4 and food can alter the safety and efficacy of the treatment, they still seem to be generally underestimated by patients, physicians and pharmacists. This review aimed to investigate the effects of meals, beverages, and dietary supplements consumption on l-T4 pharmacokinetics and pharmacodynamics, to identify the most evident interactions, and to perform the recommendations for safe co-administering of l-T4 and food. A total of 121 studies were identified following a systematic literature search adhering to PRISMA guidelines. After full-text evaluation, 63 studies were included. The results proved that l-T4 ingestion in the morning and at bedtime are equally effective, and also that the co-administration of l-T4 with food depends on the drug formulation. We found limited evidence for l-T4 interactions with coffee, soy product

Examination of the Effects of Chromium Levels on Glucose Metabolism, Lipid Metabolism, Morbidity and Mortality Rates in Patients Followed in Intensive Care Unit

n=309 · NCT06334042 · COMPLETED · COMPLETED

The goal of this observational study is to determine the effects of chromium serum levels on glucose metabolism, lipid metabolism, morbidity and mortality rates in critically ill intensive care patients. The investigators' goal is to provide a different perspective on solving the common problems of hyperglycemia and dyslipidemia encountered in intensive care patients, aiming to reduce morbidity and mortality rates. Participants will give a single blood sample (into trace element serum sample tube) on the day of admission to the intensive care unit, along with routine blood tests, and samples will be taken once a week during their stay in the intensive care unit.

Chromium Effects on Insulin and Vascular Function in People at Risk for Diabetes

n=60 · NCT00067626 · COMPLETED · COMPLETED

The purpose of this study is to investigate the effects of Chromium on glucose tolerance and endothelial function in people at risk for type II diabetes.

A Combination of L-Arabinose and Chromium Lowers Circulating Glucose and Insulin Levels After Acute Oral Sucrose Challenge

n=70 · NCT01107431 · COMPLETED · COMPLETED

This study was designed to examine changes in capillary blood glucose and venous insulin levels after a 70 gram oral sucrose challenge with and without simultaneous consumption of a dietary supplement containing L-Arabinose and a patented version of chromium (LA-Cr).