We use essential cookies (authentication, your saved goals/stack) by default. With your permission we’ll also enable privacy-respecting analytics (Vercel Web Analytics, anonymous load-time metrics) and error-replay diagnostics (Sentry — DOM snapshots only when an error fires) so we can fix bugs faster. Learn more about cookies

Ins3.2

Insulin (bodybuilding use) Research

Mostly mechanism / observational

188 peer-reviewed studies

What the evidence says

Mostly mechanism / observational

Most Insulin (bodybuilding use) studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.

Most evidence is from high-quality meta-analyses and randomised trials published 1976–2026 with a typical study size of 173 participants.

Based on 188 studies · 23 meta-analyses · 148 RCTs · 180 total participants

Confidence

High confidence

By outcome

Glucose & hypoglycemiaA genuine glucose-lowering hormone used medically for diabetes; listed here for information only — self-dosing without medical supervision risks fatal hypoglycemia. · Acute (medical use)
Mostly mechanism / observational69 studies
Muscle protein & lean mass (claimed)Anti-catabolic (improves net muscle-protein balance) but no proven muscle/performance benefit in healthy athletes — and off-label use risks severe, sometimes fatal hypoglycemia. · Not established for physique use
Mostly mechanism / observational9 studies
Safety profile
Mostly mechanism / observational4 studies

Steady research

23 studies in the last 5 years · Latest meta-analysis: 2026

197620012026

1Meta-Analysis2016

Andrade-Castellanos CA, Colunga-Lozano LE, Delgado-Figueroa N, Gonzalez-Padilla DA · Cochrane Database Syst Rev (2016)

Insulin (bodybuilding use) Research

Mostly mechanism / observational

Subcutaneous rapid-acting insulin analogues for diabetic ketoacidosis.

Efficacy and safety of insulin analogues for the management of diabetes mellitus: a meta-analysis.

Insulin plus a sulfonylurea agent for treating type 2 diabetes.

Are analogue insulins better than soluble in continuous subcutaneous insulin infusion? Results of a meta-analysis.

Is subcutaneous administration of rapid-acting insulin as effective as intravenous insulin for treating diabetic ketoacidosis?

Comparative efficacy and safety of insulin analogs in hospitalized adults.

Comparison of glucose-lowering agents after dual therapy failure in type 2 diabetes: A systematic review and network meta-analysis of randomized controlled trials.

Effectiveness of insulin glargine in type 2 diabetes mellitus patients failing glycaemic control with premixed insulin: Adriatic countries data meta-analysis.

Ultra-rapid lispro or fast-acting aspart compared to standard insulin lispro and aspart using closed-loop insulin therapy: a systematic review and meta-analysis of randomized control trials.

Efficacy and safety comparison of rapid-acting insulin aspart and regular human insulin in the treatment of type 1 and type 2 diabetes mellitus: a systematic review.

A comparison of ultra-rapid and rapid insulin in automated insulin delivery for type 1 diabetes: A systematic review and meta-analysis of randomized controlled trials.

Subcutaneous rapid-acting insulin analogues in mild to moderate diabetic ketoacidosis: A meta-analysis of randomized controlled trials.

Insulin use and cancer risk in patients with type 2 diabetes: a systematic review and meta-analysis of observational studies.

Technosphere insulin in the treatment of Type 1 diabetes mellitus: A systematic review and meta-analysis.

Efficacy and safety of ultra-rapid insulin analogues in insulin pumps in patients with Type 1 Diabetes Mellitus: A systematic review and meta-analysis.

Are New Ultra-Rapid-Acting Insulins Associated with Improved Glycemic Control and Reduced Hypoglycemia in Comparison to Conventional Rapid-Acting Insulins for Individuals with Type 1 and Type 2 Diabetes? A Systematic Review and Meta-Analysis.

Insulin therapy and risk of colorectal cancer: an updated meta-analysis of epidemiological studies.

Regular human insulins versus rapid-acting insulin analogues in children and adolescents with type 1 diabetes: a systematic review with meta-analysis and trial sequential analysis.

Exogenous insulin administration and cardiovascular risk in non-insulin-dependent and insulin-dependent diabetes mellitus.

Efficacy and Safety of Inhalational Insulin Compared With Rapid-Acting Insulin Analogs: A Systematic Review and Meta-Analysis.