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The Study

SAT-150 Trends in Blood-Based Cardiometabolic Profiles During Testosterone Replacement Therapy: A Longitudinal Study of Over 4,000 Men

In simple terms

This study watched what happened to men’s blood numbers after they started taking testosterone, but it didn’t compare them to men who didn’t take it. So we can say the numbers changed, but we can’t say for sure that testosterone made them change — maybe they ate better or lost weight.

55%

Analysis score

55/ 72

Maximum 72 for a cohort study.

Where the score came from

Reporting40
Methodology38
Publication100
Statistical54
Study type (basis of the score)
Cohort Study
Level 2b - Individual cohort study
What’s the bottom line?

When men with low testosterone get treatment, their body fat and sugar levels often get better — but one good cholesterol goes down a bit.

Where does this study sit?

Systematic Reviews & Meta-analyses

Max 100

Randomized Trials

Max 90

Cohort Studies

Max 72

Case-Control

Max 58

Cross-Sectional

Max 44

Case Reports & Series

Max 30

Expert Opinion

Max 5
StrongerWeaker
Cohort Studies
Level 2
55

55 / 100

Quality score

Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.

Cannot establish causation

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Key takeaways

Summary

Based on the study abstract and findings.

  1. 1Yes — large drops in triglycerides and triglyceride:HDL ratio (strong heart risk markers) suggest real benefit, even if HDL fell slightly.
  2. 2Triglycerides dropped 28%, triglyceride:HDL ratio dropped 20%, HbA1c dropped 3.4%, total cholesterol dropped 7.2%, HDL dropped 11.4%, LDL unchanged.

Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data

Publication

Journal

Journal of the Endocrine Society

Year

2025

Authors

A. Clift, Hans Johnson, Vivian N Liu, David R Huang, M. Khera

Open Access
Analysis v3
Fit Body Science verdict — we translate health studies into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.