Brighter Days, Darker Nights

Brighter Days, Darker Nights

Quantum Anemia Theories

IV Iron, Vitamin D, Hypophosphatemia: Questions to help you make a treatment decision

Side effects can be acute or long term (and the long term ones often go undiagnosed)

Nikko Kennedy's avatar
Nikko Kennedy
Apr 12, 2026
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Iron, Vitamin D and phosphate influence each other

You may have been recommended intravenous iron if you are low ferritin in pregnancy, postpartum, or preconception or if you have anemia that doesn’t respond to other interventions.

Before you decide yes or no—or which formulation to choose—here’s what the current research shows about a real but often-overlooked side effect and how to reduce your likelihood of having it. This directly relates to what I share about circadian and quantum biology.

Start Here: Why IV Iron?

The first question isn’t which IV iron formulation (we’ll get to that). But it’s really whether IV iron is necessary.

I started this Quantum Anemia series because so many people have reached out to me who don’t want to supplement with iron, who can’t tolerate it (nausea, constipation and other side effects), or, they have taken iron and it didn’t work to correct their energy levels or anemia.

Before considering an infusion, most providers first work with oral supplementation.

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