Why Diet Matters Around Surgery

Hair follicles are among the most metabolically active tissues in the body. After a transplant, they need oxygen, amino acids and trace elements in higher amounts than usual. A patient with low ferritin, low protein intake, or zinc deficiency simply does not heal as well — even with a perfect surgical result.

The Key Macronutrients

Aim for daily intake at the higher end of normal during the first 3 months post-op:

• Protein: 1.6–2.0 g per kg of bodyweight, spread across meals
• Healthy fats: omega-3-rich (fatty fish, walnuts, flaxseed) for inflammatory regulation
• Complex carbohydrates: vegetables, legumes, whole grains for steady glucose
• Hydration: 30–40 mL per kg of bodyweight per day

The Critical Micronutrients

Three minerals and two vitamins disproportionately affect hair regrowth:

• Iron — ferritin >50 ng/mL is the threshold below which hair regrowth stalls
• Zinc — 8–11 mg/day; deficiency directly disrupts the hair cycle
• Vitamin D — keep blood 25(OH)D >50 nmol/L; supplement in winter months
• B12 — especially relevant for vegetarians and vegans
• Selenium — modest amounts; do not over-supplement (toxicity damages hair)

Supplements That Move the Needle

What we recommend for the first 6 post-op months:

• High-quality multivitamin with all the above
• Omega-3 fish oil 1–2 g/day
• Vitamin D3 1000–2000 IU/day during winter
• Iron supplementation only if ferritin is documented low

What to Avoid

Alcohol thins the blood and dehydrates — avoid for 7 days before and 7 days after. Nicotine constricts blood vessels — by far the biggest dietary risk to graft survival; aim for 14 days before and 30 days after, longer is better. Mega-dose vitamin E and high-dose ginkgo also increase bleeding risk and should be paused.