Primary Causes & Action Plans

Vitamin D

Essential for calcium absorption and bone formation; deficiency drives osteoporosis
Vitamin D is required for intestinal calcium absorption. Deficiency leads to low blood calcium, triggering PTH release, which pulls calcium from bones. Vitamin D deficiency is the most common driver of bone loss.
Target > 50 ng/mL
Suggested Action Plan

If deficient, supplement vitamin D3 4000-5000 IU daily plus sun exposure. Target levels of 60-80 ng/mL for bone health. Retest in 8-12 weeks.

Calcium

Structural mineral of bone; deficiency directly impairs bone formation
Serum calcium is tightly regulated (8.5-10.5 mg/dL), but dietary calcium intake directly affects bone density. Low dietary calcium triggers bone resorption to maintain blood calcium.
Target Serum: 8.5-10.5 mg/dL; Intake: 1000-1200 mg daily
Suggested Action Plan

Ensure adequate dietary calcium: dairy (if tolerated), leafy greens, fortified non-dairy milks, almonds, sardines. If intake is low (<800 mg/day), supplement with calcium citrate 500-600 mg daily.

Magnesium

Regulates calcium metabolism and bone mineralization; deficiency accelerates bone loss
Magnesium is required for proper calcium metabolism and bone mineralization. Deficiency (often concurrent with low calcium and vitamin D) accelerates bone loss.
Target > 2.0 mEq/L
Suggested Action Plan

Supplement with magnesium glycinate 300-400 mg daily. Increase dietary sources: leafy greens, pumpkin seeds, dark chocolate, nuts. Retest in 8 weeks.

PTH (Parathyroid Hormone)

Elevated PTH indicates secondary hyperparathyroidism (pulling calcium from bones)
When blood calcium drops (due to vitamin D deficiency, low intake, or absorption problems), PTH rises to pull calcium from bone stores. Chronically elevated PTH drives osteoporosis.
Target 15-65 pg/mL
Suggested Action Plan

Lower PTH by correcting vitamin D deficiency and ensuring adequate calcium and magnesium intake. Retest once vitamin D is optimized (usually 8-12 weeks).

Testosterone or Estradiol (by sex)

Sex hormones maintain bone density; deficiency accelerates loss (especially in women)
Estrogen and testosterone both maintain bone density. Deficiency (as in menopause or hypogonadism) accelerates bone loss. Hormone levels predict bone loss risk.
Target Women: Estradiol > 30 pg/mL (postmenopausal). Men: Testosterone 500-800 ng/dL
Suggested Action Plan

If hormone levels are low, hormone replacement therapy can halt bone loss. Work with hormone-knowledgeable doctor. Regular weight-bearing exercise is essential regardless of hormone status.

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Getting Started

1
Get Bone Health Testing

Test vitamin D, calcium, magnesium, phosphate, PTH, and sex hormones (testosterone/estradiol). Also request bone density scan (DEXA) if over 50 or high-risk. These tests establish your baseline.

2
Correct Mineral Deficiencies Aggressively

If vitamin D is low, supplement 4000-5000 IU daily plus sun exposure. Ensure adequate calcium (1000-1200 mg daily from diet or supplements). Add magnesium 300-400 mg daily. These three minerals are foundational to bone health.

3
Engage in Weight-Bearing Exercise

Weight-bearing exercise (walking, dancing, lifting, running) signals bones to maintain and rebuild density. Aim for 30-60 minutes of weight-bearing activity 4-5 days per week. Strength training is particularly powerful.

4
Avoid Bone-Damaging Substances

Excessive caffeine, salt, sugar, and alcohol all accelerate bone loss. Limit to minimal amounts. Smoking dramatically accelerates osteoporosis; quitting is essential if you smoke.

5
Retest Minerals and Bone Density Annually

Biomarkers should improve within 6-12 months of comprehensive intervention. Repeat DEXA scan in 2-3 years to confirm bone density is stabilizing or improving. Adjust supplementation based on results.

Why I built this guide.

"Osteoporosis is preventable. Test early, supplement targeted minerals, and you can maintain strong bones for life."

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