Guides

Practical, evidence-based playbooks for serious lifters tracking their physique with data.

  • How to Read Your Testosterone Bloodwork

    What total T, free T, SHBG, estradiol, and LH/FSH actually mean — and how to spot the patterns that matter for body composition.

    Read guide →
  • Lab-Driven Nutrition Targets: Setting Calories and Macros from Your Bloodwork

    Use fasting glucose, lipids, thyroid panel, and inflammatory markers to set protein, carb, and fat targets that match your physiology.

    Read guide →
  • Cycle Planning Fundamentals for Natural and Enhanced Lifters

    How to structure progressive training blocks, deload weeks, and recovery phases so each cycle compounds on the last.

    Read guide →
VitalStack

Install VitalStack

For the best experience on iPhone, VitalStack must be opened from your Home Screen in full‑screen mode.

Steps
  1. 1Tap the Safari Share button
  2. 2Choose Add to Home Screen
  3. 3Open VitalStack from the Home Screen icon (no address bar)

If you don't see “Add to Home Screen”, make sure you're using Safari (not an in‑app browser).

Portrait only

Rotate your phone back to portrait to continue.