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TRT & Testosterone Blog

156 evidence-based articles covering TRT protocols, testosterone optimization, bloodwork interpretation, and hormone health.

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TRT(60)

TRT10 min read

Testosterone and Caffeine: What the Research Actually Shows

Does caffeine raise or lower testosterone? The honest evidence on cortisol, sleep disruption, acute performance effects, and what it means for men on TRT or optimizing naturally. No hype — just what the data says.

2026-04-02

TRT13 min read

TRT for Bodybuilders: What's Different When You Train Hard

Training seriously changes how TRT interacts with your body — hematocrit, E2, SHBG, injection timing, and recovery. Here's what bodybuilders actually need to know about TRT protocols, labs, and realistic expectations.

2026-04-01

TRT12 min read

Gonadorelin on TRT: Does It Actually Replace HCG? (2026 Guide)

Gonadorelin is now the most commonly prescribed HCG alternative in TRT protocols following the 2020 FDA compounding restrictions. Here's what it actually does, how it differs from HCG, the evidence on fertility and testicular function, dosing protocols, and who actually needs it.

2026-03-24

Supplements(14)

Supplements9 min read

Spermidine for Autophagy and Longevity

An evidence-aware overview of spermidine for autophagy and healthy aging, including food sources, supplements, and monitoring strategy.

2025-12-30

Recovery(11)

Lifestyle(8)

Lifestyle13 min read

Testosterone and Sleep: How Sleep Quality Controls Your T Levels

Testosterone production is almost entirely nocturnal — driven by deep sleep and your circadian clock. Here's what the research shows about sleep duration, sleep architecture, and how to optimize your sleep for hormonal health.

2026-03-25

Nutrition(7)

Nutrition8 min read

Best Protein Sources for Healthy Aging

A practical guide to protein quality, meal distribution, and food choices that support muscle, recovery, and healthy aging.

2025-12-15

Science(7)

Biomarkers(6)

Metabolic Health(5)

Fitness(5)

protocol(3)

protocol14 min read

TRT and Finasteride: The Interaction Most Clinics Get Wrong (2026)

Combining TRT and finasteride suppresses DHT by 65–70% — which can cause reduced libido, erectile changes, and mood blunting even when testosterone looks normal on labs. Here is what the research shows and how to monitor the combination correctly.

2026-03-30

Natural Optimization(3)

causes(2)

causes13 min read

TRT and Buprenorphine (Suboxone): What Men on MAT Need to Know

Buprenorphine suppresses testosterone in most men — but the degree, reversibility, and treatment options are different from full-agonist opioids. Here is what the evidence shows and how to manage hypogonadism while on Suboxone or Subutex.

2026-04-01

diagnostics(2)

diagnostics

Testosterone and Metformin: What Men With Insulin Resistance Need to Know

Metformin is one of the most commonly prescribed drugs for insulin resistance and type 2 diabetes — and both conditions are strongly linked to low testosterone. Here's what the research actually shows about how metformin affects testosterone levels, and how to think about sequencing.

2026-03-30

Protocol & Management(2)

Women's Health(2)

lifestyle(1)

Clinics & Access(1)

Cost & Access(1)

health(1)

Getting Started(1)

Diagnosis & Bloodwork(1)

Men's Health(1)

Hormones(1)

Sleep(1)

Frameworks(1)

Exercise(1)

Skincare(1)

Testing(1)

Reviews(1)

Reviews9 min read

Bryan Johnson Blueprint Protocol Review

An objective review of the Blueprint protocol, separating useful ideas from high-friction elements for everyday longevity planning.

2025-11-18

Resources(1)

Directory(1)

Directory12 min read

Top 10 Longevity Clinics in the US

A practical directory-style guide to evaluating longevity clinics in the US, with due diligence criteria before you spend money.

2025-11-03

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