/Vitamin D3 + K2
supplement · Vitamin

Vitamin D3 + K2

The sunshine vitamin — immune, bone, testosterone, and mood support

Evidence Rating:

Educational Content Only. This information is for educational purposes and does not constitute professional medical or dietary advice. Always consult a qualified healthcare provider before starting any supplement, skincare treatment, or grooming routine.

Overview

Vitamin D3 (cholecalciferol) is a prohormone that most people are deficient in, especially in northern latitudes or with indoor lifestyles. It is essential for immune function, bone health, testosterone production, mood regulation, and cardiovascular health. K2 (MK-7) is included to direct calcium to bones and away from arteries.

How It Works

Vitamin D3 is converted to calcitriol (active form) in the kidneys, which acts as a hormone binding to vitamin D receptors (VDR) in virtually every cell. K2 activates osteocalcin (bone building) and matrix GLA protein (prevents arterial calcification).

Benefits

  • Immune system support
  • Bone density maintenance
  • Testosterone support
  • Mood improvement
  • Cardiovascular health
  • Muscle function

Best For

Vitamin D deficiencyImmune supportBone healthTestosterone optimizationSeasonal mood issues (SAD)

How to Use

Take 2000–5000 IU daily with a fat-containing meal (fat-soluble vitamin). Get blood levels tested to optimize dose. Target blood level: 40–60 ng/mL.

Ingredients / Formulation

Vitamin D3 5000 IU (Cholecalciferol), Vitamin K2 100mcg (MK-7), Olive Oil

Key Ingredients

  • Vitamin D3 5000 IU
  • Vitamin K2 (MK-7) 100mcg

Suitable For

  • ✓ Most adults
  • ✓ People with limited sun exposure
  • ✓ Athletes
  • ✓ Older adults

Avoid If

  • ✗ Those on warfarin (K2 interaction)
  • ✗ Hypercalcemia

Application

topical

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