Fasting insulin
Fasting insulin is a biomarker that measures the level of insulin in your blood after at least 8 hours without food, and it provides insights into how well your body manages glucose levels. Higher fasting insulin levels have been linked to an increased risk of coronary artery disease through various biological pathways, as identified in a proteome-wide Mendelian randomization study. Additionally, a dose-response meta-analysis found that elevated fasting insulin is associated with higher cancer-related mortality in non-diabetic adults. For individuals managing type 2 diabetes, consensus guidelines recommend careful adjustment of insulin doses during periods of fasting to maintain stable blood glucose levels.
Fasting insulin also plays a role in preoperative protocols and has been studied for optimal fasting times before medical procedures. In the context of Ramadan fasting, studies have explored how insulin pump therapy can be effectively managed to prevent hypoglycemia and maintain glucose control in individuals with type 1 diabetes.
While these findings highlight important connections between fasting insulin and various health outcomes, more research is needed to fully understand the underlying mechanisms and their clinical implications.
Sources
- Exploring the pathways linking fasting insulin to coronary artery disease: a proteome-wide Mendelian randomization study. (PMID:40442727)
- Fasting Insulin and Risk of Cancer Related Mortality in Non-diabetic Adults: A Dose-response Meta-analysis of Cohort Studies. (PMID:31490761)
- Consensus on Insulin Dose Modification During Fasting in Type 2 Diabetes. (PMID:28832099)
- Reappraisal of the optimal fasting time for insulin tolerance tests in mice. (PMID:32739449)
- Preoperative fasting. (PMID:12673740)
- Insulin pump therapy and glucose control during Ramadan fasting in an adolescent with type 1 diabetes: from an open-loop sensor-augmented pump therapy with predictive low-glucose management to an advanced hybrid closed-loop system. (PMID:36811739)
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Connections
Fasting insulin measures
Sources
- Preoperative fasting. (2003) pubmed
- Fasting does not impair insulin-stimulated glucose uptake but alters intracellular glucose metabolism in conscious rats. (1993) pubmed
- Exploring the pathways linking fasting insulin to coronary artery disease: a proteome-wide Mendelian randomization study. (2025) pubmed
- Fasting Insulin and Risk of Cancer Related Mortality in Non-diabetic Adults: A Dose-response Meta-analysis of Cohort Studies. (2020) pubmed
- Consensus on Insulin Dose Modification During Fasting in Type 2 Diabetes. (2017) pubmed
- Reappraisal of the optimal fasting time for insulin tolerance tests in mice. (2020) pubmed
- Insulin pump therapy and glucose control during Ramadan fasting in an adolescent with type 1 diabetes: from an open-loop sensor-augmented pump therapy with predictive low-glucose management to an advanced hybrid closed-loop system. (2023) pubmed
- Effects of aerobic exercise performed in fasted v. fed state on fat and carbohydrate metabolism in adults: a systematic review and meta-analysis. (2016) pubmed
- Hypoglycaemia risk with insulin glargine 300 U/mL compared with glargine 100 U/mL across different baseline fasting C-peptide levels in insulin-naïve people with type 2 diabetes: A post hoc analysis of the EDITION 3 trial. (2020) pubmed
- The effect of fasting, diet, and actinomycin D on insulin secretion in the rat. (1970) pubmed