Tools for Hormone Optimization in Males | Dr. Kyle Gillett

Key wellness strategies & actionable takeaways (male hormone optimization)

1) Start with “diagnostics + calibration” (don’t guess)

• Get baseline bloodwork early, especially in later Tanner stages (4–5) or if there are concerns about delayed/precocious puberty, stature, or puberty timing.
• If starting at ~18: repeat labs about every 6 months (twice yearly) with a physician.
• For testosterone tracking, focus on:
  • Total testosterone + SHBG or free testosterone
  • Use free/bioavailable measures—not just “total T.”

2) Behavioral “pillars” that support hormone function across life

• Sleep: prioritize high-quality sleep on ~80% of nights (life noise/stress will reduce it some nights).
• Stress management: use tools such as
  • mindfulness/relaxation
  • going outside
  • exercise/diet adjustments
  • prayer/meditation
  • counseling/therapy or open conversation with trusted people
• Social connection: maintain close relationships (family/friends/community); social disruption can derail other habits.
• Sunlight + temperature exposure + movement:
  • spend time outside for sunlight
  • include some heat and cold exposure
  • build a lifelong movement pastime
• Purpose/spirit/self-actualization: identify a meaningful goal (and update it over time—not one fixed lifelong objective).

3) Exercise approach (hormone-friendly dosing)

• Consistency beats extremes: more benefit from being steady (80–90% adherence over months) than being perfect but sporadic.
• Vigorous exercise threshold: avoid regularly training hard for >1 hour.
• Suggested weekly pattern:
  • 3–4 times/week vigorous training (sustainable long-term)
  • plus 3–4 additional lower-intensity sessions
• Intensity flexibility:
  • zone 2 cardio (conversation possible)
  • weight training can be beneficial even at moderate intensity; heavy work can be included “from time to time”
• Avoid chronic overreaching/overtraining, especially when paired with:
  • caloric deficit
  • inadequate micronutrients (notably iron and vitamin D)
• Recovery mindset: stop workouts before complete exhaustion to preserve energy for the rest of the day.

4) Nutrition essentials for hormone optimization

• Avoid “dirty bulking” (purposefully gaining excess body fat).
  • Rationale: childhood obesity/extra fat can push earlier puberty via leptin-driven pathways.
• Diet quality during development matters
  • Vitamin D for testosterone production and bone mineralization
  • Adequate nutrients to support IGF-1/bone/secondary sexual characteristics
  • Fiber + prebiotics to support the gut microbiome (described as “fish food” for beneficial microbes)
• Caloric restriction: nuance
  • If overweight: fat loss via diet/exercise can improve testosterone long-run
  • If not overweight: a caloric deficit tends to lower testosterone/free sex hormones via:
    • fewer hormone “building blocks”
    • more catabolic state
    • lower GH/IGF-1 signaling
    • higher SHBG → lower free androgens/estrogens
• Diet type caution
  • In teens/early 20s, very restrictive diets (e.g., pure carnivore / very pure vegan) are described as a bad idea because they likely reduce free androgens
  • In late 20s, more flexibility may exist

5) Supplement “hierarchy” (behavior → food → supplements → meds only if needed)

• Order of operations emphasized:
  1. behavior first
  2. then nutrition
  3. then supplements
  4. then prescription drugs only when there’s a real need (with a doctor)

Supplements discussed to support hormone profiles (and related logic)

• Creatine monohydrate
  • Typical dose: ~5 g/day
  • Benefits: ATP/mitochondrial “backup fuel,” oxidative stress support, slight total T increase, potentially shifts toward DHT conversion
  • Hair loss note: taking creatine is not framed as a strong reason to avoid it (effects aren’t expected to push beyond natural androgen levels)
• Betaine
  • Dose (if using for creatine non-response): ~1–3 g/day
  • Support: amino acid synthesis / energy shuttling
  • Consider only as an “add-on” when homocysteine is elevated
• L-carnitine
  • Oral dose: 1,000 mg up to 4,000–5,000 mg/day (because absorption is low)
  • Injectables: prescription/doctor supervision; higher bioavailability
  • Mechanism: mitochondrial shuttle; may increase androgen receptor density
  • TMAO caution: if on high doses or with dysregulated microbiome, consider risk related to TMAO
    • Garlic (allicin) and berberine may reduce TMAO formation (but berberine can have side effects for some)
• Vitamin D3
  • Include testing for deficiency
• Boron
  • Dose: ~5–12 mg/day to help lower SHBG (not described as a long-term effect)
• Tongkat ali (Long Jack)
  • Dose range: ~300–1,200 mg/day
  • Aim: upregulate steps in steroidogenesis cascade; may raise total/free testosterone and sometimes DHEA
  • Not recommended to cycle (no strong reason described)
  • Timing: can be mildly stimulating (example used by Huberman)
• Fadogia agrestis
  • Safety: rat toxicity data suggest a conservative approach; “safe” equated dose discussed as ~300 mg/day
  • Alternative safer regimen if monitoring isn’t possible:
    • 600 mg every other day, or
    • 600 mg 3x/week (e.g., M/W/F)
  • If labs are being checked (e.g., GGT/ALP), more aggressive regimens may be possible
  • Huberman describes personal cycling; Gillett suggests the lower-frequency approach is preferable for safety
• Fasting / timing for GH
  • Fasting can increase growth hormone release
  • Rule of thumb: avoid eating ~2 hours before bed to preserve the GH pulse
  • Fasting beyond that isn’t framed as especially useful if GH signaling already normal
• Thyroid via iodine balance + goitrogens
  • Ensure adequate iodine, but avoid extremes
  • Goitrogens are not “evil”; higher goitrogen intake can mean you need more iodine
  • Foods mentioned: cruciferous vegetables as goitrogens
  • Iodized salt prevents goiter but may not be the ideal iodine form
• Tadalafil (prescription) was mentioned as a tool
  • Low dose for some prostate/nocturia/circulation benefits; also described to increase androgen receptor density similar to L-carnitine
  • Monitoring considerations (e.g., PSA) noted

6) Libido & “is my level normal?”—how they assess it

• Use open-ended questions and motivational interviewing (listen first, don’t “plant an idea”).
• Screening questionnaires exist, including:
  • ADAM questionnaire (screening; not described as fully clinically-validated like PHQ-9/GAD-7)
• Example logic used clinically:
  • A person may score “fine” on screening but disclose low libido / ED later
  • ED is described as a “canary in the coal mine” for cardiovascular risk in some cases
  • Determine whether ED is:
    • situational/behavioral (may include porn/masturbation frequency factors), or
    • physiologic (labs still recommended)

7) Porn/masturbation and hormone-ish mechanisms (dose/frequency emphasis)

• Prolactin rises acutely after ejaculation/orgasm, which can blunt libido.
• Frequency matters:
  • described as potentially harmful if daily or more than once a day
  • porn use is framed as likely worse than masturbation due to intense stimulation patterns
• Neurobiology framing used:
  • dopamine “wave pool” concept (high peaks → deeper troughs/crash)
• “Partner sex” could be different:
  • “dose makes the poison”—if consensual/appropriate/positive for both, it may be okay, though some crash can occur.

8) Fertility while optimizing hormones (heat avoidance emphasized)

• If using testosterone-leaning strategies, fertility impacts vary widely.
• Major lifestyle lever: avoid heat to testes
  • tight clothing, heat exposure, sauna/hot tubs can reduce sperm viability
  • stopping daily hot tub can restore fertility for some
• For fertility consultations: lifestyle changes only (no meds/supps) can restore sperm counts for some people.

---

“Don’ts” / risk-reduction points mentioned

• Don’t dirty bulk / overeat to gain excess body fat (especially during growth years)
• Don’t regularly do very vigorous exercise >1 hour for hormone optimization
• Don’t use caloric deficits when not overweight (can lower free sex hormones)
• Don’t masturbate/porn excessively
  • especially framed as daily or more than once/day as a caution threshold
• Don’t expose testes to excessive heat (sauna, hot tubs; long periods biking pressure; tight clothing)
• Don’t smoke THC/cannabis (described as lowering testosterone and increasing prolactin)
• Be cautious with nicotine
  • vasoconstriction + cardiovascular/microvascular risks; dose-dependent concern
• Avoid “exogenous hormone” stacking without medical oversight
  • testosterone/HRT, peptides, and prescription-like interventions require careful monitoring

---

Presenters / sources

Presenters

• Andrew Huberman (host)
• Dr. Kyle Gillett (guest; physician specializing in hormone optimization)

Referenced sources/tools (mentioned in discussion)

• Tanner stages (clinical framework)
• ADAM questionnaire (men’s hormone-related health screening tool)
• PHQ-9 and GAD-7 (depression/anxiety screening tools, referenced for comparison)
• Duncan French (referenced for specific training protocols)
• Dr. Anna Lembke (referenced re: dopamine/withdrawal concepts)
• Dr. Peter Attia (free testosterone percentage reference)
• Dr. Shanna Swan (phthalate/BPA reproductive effects referenced)
• InsideTracker (blood/DNA interpretation platform sponsor/mentioned)
• Momentous Supplements (sponsor/mentioned)
• Examine.com (supplement research referenced)
• Sponsors early in the episode: Thesis, ROKA, Helix Sleep, Athletic Greens (AG1)