03/05/2026
I'm Dr. Daniel Min, a naturopathic doctor in Port Coquitlam.
Your ferritin is 18. Your doctor said it's "normal." I say it's the reason you can barely keep your eyes open.
Here's the gap: Lab ranges are designed to rule out disease, not optimize function.
Ferritin (iron stores):
• Lab range: 10-200 ng/mL
• Your level: 18 ng/mL ("normal")
• Optimal for energy: 70-100 ng/mL
At 18, you're technically not anemic. But you're absolutely exhausted.
The same applies to:
• TSH (thyroid): 3.8 is "normal" but often causes fatigue
• Free T3: Low-normal = brain fog and cold intolerance
• Vitamin D: 30 is "normal," 70+ is optimal
• B12: 250 is "normal," 500+ is where people feel good
"Normal" just means you're not sick enough for medication.
It doesn't mean you're thriving.
In my practice, I don't just look at whether you're in range. I look at where in the range you are — and whether that matches how you feel.
If you're in the Vancouver/Tri-Cities area and you want someone to actually look at your labs through the lens of optimization (not just disease prevention), comment READY and I'll send you the link to book a free Health Strategy Session in Port Coquitlam.