Your concentration converts that volume into milligrams
Assay interference, sample handling and taking a supplement shortly before the blood draw can all distort a reading, and different laboratories use different methods and reference ranges

Case Study #3: Athletic Performance Optimization Patient: 38-year-old male competitive age-group triathlete Chief Complaints: Declining recovery between training sessions, persistent low-grade injuries, inability to hit previous power numbers despite consistent training Baseline Assessment: IGF-1: 168 ng/mL (suboptimal for training load) Testosterone: 512 ng/dL (adequate but not optimal for performance goals) hs-CRP: 2.1 mg/L (chronic low-grade inflammation) Ferritin: 32 ng/mL (suboptimal for endurance athlete) Training metrics: 7-day recovery time after hard sessions (goal: 2-3 days) Treatment Protocol: Foundation: Address iron deficiency with supplementation, optimize nutrition timing around training Hormone optimization: Testosterone enanthate to achieve 850-950 ng/dL range Peptide therapy: Sermorelin 400 mcg nightly, 6 nights/week (timed around training schedule) Supporting interventions: Sleep optimization protocol, targeted anti-inflammatory nutrition 16-Week Results: IGF-1: 284 ng/mL (+69%) Recovery time: 2-3 days for hard sessions (71% improvement) FTP (functional threshold power): +18 watts Body composition: -2.1% body fat, +1.9 kg lean mass hs-CRP: 0.6 mg/L (normalized) Race results: Two age-group podiums in half-iron distance races Patient Report: The recovery improvement is dramatic

Larazotide is a peptide designed to tighten these loose junctions and help close the gaps in the gut lining
Frequently studied in cellular signalling pathway research
Is it normal for symptoms to initially worsen before improving with B12 therapy