Marcus — Health Biomarkers

Current priorities

🔬

Free T3 Missing

Requested Mar 2026, not reported. Critical for understanding SHBG elevation. Chase lab or redraw.

⚡

SHBG Consistently High

54 → 52 nmol/L. Bottlenecks free testosterone. Consider boron 6–10 mg/day, adequate carbs.

🔥

CRP Trending Up

0.4 → 1.1 mg/L. Retest on rest day 48h post-training. If persistent, investigate gut health.

☀️

Vitamin D Suboptimal

93 nmol/L. Target 125–175. Increase D3 to 4,000–5,000 IU/day. Retest in 3 months.

💉

Hep B Vaccination

Dose 1 Mar 2026. Dose 2 due ~Apr 2026. Dose 3 ~Sep 2026. Recheck surface Ab 4–8 weeks after dose 3.

🩺

Fasted Insulin Needed

No confirmed fasted draw yet. Get HOMA-IR baseline. Current metabolic markers suggest good sensitivity.

Hormones

Total Testosterone

Normal

23.5 nmol/L

11.0 40.0

Apr 2025 → Jun 2025 → Mar 2026 ↗

20.8 → 23.3 → 23.5 nmol/L. Mid-range, gradually improving.

SHBG

Elevated

52 nmol/L

10 70

Jun 2025 → Mar 2026 →

54 → 52. Flagged HIGH in Jun 2025 lab range. Primary bottleneck for free T. Investigate fT3.

Free Testosterone (calc.)

Low-Quarter

370 pmol/L

260 740

350 → 370. SHBG-driven. Optimise by lowering SHBG, not by raising total T.

Low-Normal

2.0 IU/L

0.6 12

3.2 → 1.9 → 2.0. Stable individual set point. Sleep and zinc are primary levers.

FSH

Low-Normal

2.0 IU/L

1.0 12

2.4 → 2.4 → 2.0. Rock stable.

Oestradiol

Normal

60 pmol/L

0 165

Prolactin

Normal

267 mIU/L

85 500

197 → 267. Both normal, no concern.

DHEA-S

Upper-Mid

13.3 umol/L

4.0 16.1

DHT

Normal

1.6 nmol/L

0.4 2.5

LC-MS/MS method (SEALS POWH). Jun 2025 only data point.

IGF-1

Mid-Range

25 nmol/L

14 52

Jun 2025 only. GH axis baseline.

Thyroid

TSH

Optimal

1.1 mIU/L

0.3 3.5

2019 → 2024 → 2025 → 2026

1.7 (2019) → 0.80 (2024) → 1.18 (Apr 2025) → 1.1 (Mar 2026). Consistent optimal zone.

Free T4

Low-Quarter

11.5 pmol/L

9.0 19.0

Mar 2026 only. Low-quarter despite normal TSH — suggests possible T4→T3 conversion issue. Free T3 critical.

TPO Antibodies

Normal

<1.0 IU/mL

Ref <5.6. No autoimmune thyroid process.

Thyroglobulin Ab

Normal

2.1 IU/mL

0 4.1

Metabolic

HbA1c

Excellent

5.3 %

4.0% <6.5%

Jun 2024 → Mar 2026 ↑

4.9% (2024) → 5.3% (2026). Both excellent. Mild rise likely from increased carb intake during bulk.

Glucose

Normal

4.1 mmol/L

3.6 6.0

Non-fasted (oats & fruit). 5.4 mmol/L when fasted in 2024.

Insulin

Non-fasted

15 mU/L

Mar 2026 drawn post-oats/fruit — uninterpretable as fasting. Jun 2025 random of 8 mU/L was reassuring. True fasted draw needed.

Urate

Normal

0.34 mmol/L

0.12 0.45

Jun 2024 only.

Lipids (Non-fasted, Mar 2026)

Lipid Panel — Trending with lean bulk

All In Range

Total Chol

4.7 mmol/L

<5.6

LDL

2.8 mmol/L

<4.1

HDL

1.63 mmol/L

>0.89 ✓

Triglycerides

0.7 mmol/L

<2.1 ✓✓

ApoB

0.77 g/L

0.49–1.73 ↑

Lp(a)

<5 nmol/L

<75 ✓✓

Total:HDL

2.9 ratio

<4.6

LDL trend

Rising with lean bulk. Monitor ApoB — if >0.90 on next draw, review dietary fat sources.

Inflammation

hsCRP

Trending Up

1.1 mg/L

0 5.0

Jun 2025 → Mar 2026 ↑

0.4 → 1.1. Above functional target <0.5. Retest on rest day 48h post-training.

ESR

Optimal

1 mm/h

1 12

Homocysteine

Borderline

8.6 umol/L

4 15

Lab range normal. Functional target <8. Ensure adequate B12, folate, B6.

Iron Studies

Serum Iron

Normal

19 umol/L

5 30

Fully recovered from critical low ↑↑

5 (Jun 2024, flagged) → 15.3 → 25.1 → 19. Critically low in 2024, likely acute inflammation. Resolved.

Ferritin

Normal

87 ug/L

30 300

87 → 94 → 62 → 87. Functional athlete target 80–150. Lower-optimal — monitor during heavy training.

Transferrin Sat.

Normal

29 %

20% 45%

Recovered from 10% in Jun 2024.

Transferrin

Normal

2.6 g/L

1.9 3.1

Full Blood Count

Haemoglobin

Normal

146 g/L

135 175

Iron recovery reflects here ↑

136 (iron-limited, 2024) → 150 → 146. Improved significantly with iron recovery.

WBC

Normal

7.1 10⁹/L

3.5 10.0

Platelets

Normal

247 10⁹/L

150 400

Neutrophils

Normal

3.95 10⁹/L

1.5 6.5

Lymphocytes

Normal

2.26 10⁹/L

1.0 4.0

Was at lower limit (1.1) in Jun 2024. Recovered well.

Haematocrit

Normal

0.43 L/L

0.40 0.54

MCV

Normal

89 fL

80 100

Vitamins & Minerals

Vitamin D

Suboptimal

93 nmol/L

50 150

Jun 2025 → Mar 2026 ↑

83 → 93. Improving. Target 125–175 nmol/L. Increase D3 to 4,000–5,000 IU/day.

Active B12

Normal

93 pmol/L

>35

Mar 2026 (active B12). Jun 2024 was 395 pmol/L total B12 — different assay.

Folate (Serum)

Normal

18 nmol/L

>7.0 55

32.8 (2024) → 18 (2026). Decreased but adequate.

Magnesium (Serum)

Low-Quarter

0.77 mmol/L

0.70 1.10

Lower quarter. Continue supplementation. Serum Mg is poor proxy for intracellular stores.

Liver Function

ALT

Normal

13 U/L

5 40

AST

Normal

20 U/L

10 40

Was 40 (borderline) in Jun 2024 — training related. Fully normalised.

GGT

Excellent

6 U/L

5 50

10 (2024) → 6 (2026). Excellent. Minimal alcohol and no liver oxidative stress.

ALP

Normal

69 U/L

35 110

Bilirubin

Normal

12 umol/L

0 21

Albumin

Normal

47 g/L

35 48

Kidney & Electrolytes

eGFR

Excellent

>90 mL/min

Ref >59. Consistent across all draws.

Creatinine

Normal

90 umol/L

60 110

Sodium

Normal

141 mmol/L

135 145

Potassium

Normal

4.2 mmol/L

3.5 5.5

Urea

Normal

6.7 mmol/L

3.0 7.5

Corrected Calcium

Normal

2.32 mmol/L

2.10 2.60

Bicarbonate

Normal

27 mmol/L

20 32

Phosphate

Normal

1.11 mmol/L

0.80 1.50

Gaps — Never Tested

Missing Baseline Tests

Todo

Free T3 Zinc (serum) Copper / Ceruloplasmin Cortisol (morning fasted) Vitamin A Omega-3 Index GI-MAP stool test DUTCH hormone panel Fasting insulin (confirmed) HOMA-IR