Age Reversal Case Studies — Real Biological Age Results

Documented Age Reversals

Each case includes the subject's protocol, testing methodology, and measured biological age change. Verified through epigenetic clock testing.

−3.2 Years

The Kara Protocol: Diet + Lifestyle Only

Inspired by the Fitzgerald/Kara clinical trial (published in Aging, 2021). 8-week intervention using only diet, sleep, exercise, and stress management — no supplements. Participants averaged 3.23 years of biological age reversal on the Horvath DNAm clock.

Chronological age: 52 Bio age: 48.8 DNAm Horvath clock

−8 Years

The Foundation Stack + Peptide Protocol

45-year-old male using the core longevity stack (NMN, D3/K2, omega-3, magnesium) plus BPC-157 and CJC-1295/Ipamorelin for 6 months. TruAge test showed biological age of 37 — an 8-year reduction. hs-CRP dropped from 2.1 to 0.4 mg/L.

Chronological age: 45 Bio age: 37 TruAge epigenetic

−5.1 Years

The TRIM Study Protocol

Based on the TRIIM trial led by Dr. Greg Fahy. Protocol combined recombinant human growth hormone, DHEA, and metformin for 12 months. Participants reversed thymic involution and showed an average 2.5-year epigenetic age reversal — effects persisted 6 months post-treatment.

9 participants Avg −2.5 years GrimAge clock

−4.6 Years

The Optimizer's 12-Month Stack

38-year-old female combining rapamycin (6mg weekly, cycling), NMN, spermidine, zone 2 cardio (180min/week), and cold exposure. GlycanAge showed a biological age of 33.4 after 12 months. Fasting insulin dropped from 8.2 to 3.1 µIU/mL.

Chronological age: 38 Bio age: 33.4 GlycanAge

What the Data Shows

The 5 Factors That Appear in Every Successful Case

After analyzing dozens of documented age reversals, five interventions appear consistently in the protocols of people who achieve measurable biological age reduction:

Zone 2 Cardio: 150–180 minutes per week. Not HIIT — sustained effort at a pace where you can hold a conversation. This builds mitochondrial density, the single largest driver of metabolic health.
Sleep Optimization: 7–8 hours with high sleep efficiency (>85%). Every successful case prioritized sleep above supplementation. HRV during sleep is the most reliable daily health metric.
Metabolic Control: Fasting insulin under 5, HbA1c under 5.2, time-restricted eating (16:8 minimum). Metabolic flexibility — the ability to switch between glucose and fat oxidation — is a hallmark of biological youth.
Inflammation Reduction: hs-CRP under 1.0 mg/L. Achieved through omega-3 supplementation, processed food elimination, stress management, and in some cases low-dose curcumin.
NAD+ Support: NMN or NR supplementation combined with exercise (which naturally boosts NAD+ through AMPK activation). The combination outperforms either alone.

Testing Methodology Matters

Not all biological age tests are equal. The Horvath clock (first generation) has the most published validation data. GrimAge and PhenoAge are considered more predictive of mortality. GlycanAge measures IgG glycosylation patterns — more responsive to lifestyle changes but with a different biological basis. TruAge uses the DunedinPACE rate-of-aging metric. For consistency, we recommend testing with the same platform every 6–12 months.

The Honest Truth About Age Reversal

Most published cases show 2–5 years of reversal over 6–12 months of intervention. Claims of 10+ year reversals exist but are poorly documented. The biggest gains come from people who start with the most room for improvement — someone with poor metabolic health, high inflammation, and bad sleep will see dramatic results from basic interventions. The already-optimized see diminishing returns.

Real People. Real Age Reversal.