Questions
Things people ask us
What is Ask Dr. D?
Ask Dr. D turns Dr. James Dahlgren’s career of toxicology research into calm, evidence-graded guidance about chemical exposure, with free articles and two in-depth paid workbooks.
Who is Dr. Dahlgren?
An internist and toxicologist who has read more than 260,000 peer-reviewed studies and used that research on behalf of people harmed by chemical exposure. Read his story.
Is this medical advice?
No. Everything here is educational. It doesn’t diagnose anything and it isn’t a substitute for a licensed physician. See the medical disclaimer.
What do “Established,” “Probable,” and “Emerging” mean?
They’re evidence grades attached to claims. Established: consistent findings across many human studies. Probable: good evidence of an association, with some uncertainty about dose, timing, or cause. Emerging: early or mixed findings, worth watching but not worth assuming.
Why do you charge for the reports?
Ask Dr. D is a company, not a nonprofit, by design. Your purchase funds independent research into testing and treatment for chemical exposure — research that isn't being done today. Charging for our deepest work lets us keep much of our content free and keep building.
What do the reports cost?
The at-a-glance guides are free by email. Each full workbook is $39, or $59 for both.
Do I need an account to buy?
Yes. A free account keeps your purchases in one place so you can download them again later.
What is your refund policy?
[TODO: confirm refund policy]