Supplemental Reading Week 10 Special Kansas Evidence Review

How the American Kratom Association Misled Kansas to Pass the KCPA

When Kansas lawmakers were asked to pass the Kratom Consumer Protection Act (KCPA), they were told a reassuring story: that kratom is not an opioid, not addictive, and safe enough to regulate rather than restrict.

That story was built on selective citations, incomplete science, and critical omissions—many of them drawn from the very exhibits submitted as “evidence.”

Primary Exhibits (as submitted)

These PDFs are provided exactly as uploaded for independent review.


Exhibit A: “Kratom Science Update – Evidence-Based Facts” (Pinney Associates / AKA)

What Kansas was handed:
A glossy “science update” that looks like an objective report written by credentialed experts.

What it really is:
The authors admit in their own disclosure that this document was paid work and was drafted for the American Kratom Association (AKA). That doesn’t automatically make every sentence false, but it matters because Kansas lawmakers were asked to treat it like a neutral source.

What this document admits (and why Kansas should have been alarmed):

What Kansas lawmakers were not told plainly:

Why Exhibit A actually helps the case for stricter control (including scheduling arguments):

Open Exhibit A (PDF) →


Exhibit B: Systematic Review of Overdose Risk (Stanciu et al.)

What Kansas lawmakers were told:
Supporters emphasized that most kratom-related deaths involved other drugs, implying that kratom by itself is relatively low risk.

What the study actually found:

What lawmakers were not clearly told:

Why this matters for regulation:

Open Exhibit B (PDF) →


Exhibit C: Abuse Liability Study of 7-Hydroxymitragynine (Hemby et al.)

What Kansas lawmakers were led to believe:
Animal studies show kratom has low addiction risk.

What this study actually found:

What lawmakers were not clearly told:

Why this matters for policy decisions:

Open Exhibit C (PDF) →


Exhibit D: “Kratom Tea as a Therapeutic Option” (Wilson et al.)

What Kansas lawmakers were told:
This study was cited to suggest that kratom can help people get off opioids and does not seriously affect breathing.

What the study actually shows:

What lawmakers were not clearly told:

Why this matters for regulation:

Open Exhibit D (PDF) →


Exhibit E: Mitragynine Self-Administration in Rats (Yue & Katz)

What Kansas lawmakers were told:
This study was used to claim that kratom’s main ingredient is not addictive because animals did not repeatedly take it.

What the study actually found:

Why this animal study does not translate to human safety

Rats do not process kratom the way people do. Humans convert mitragynine into 7-hydroxymitragynine (7-OH), a much stronger opioid-active compound. Rats do not make this conversion in the same way or to the same extent.

This is basic pharmacology. We would never judge the safety of codeine in an animal that cannot convert it into morphine. Yet that is exactly what happened here—without explaining it to lawmakers.

What lawmakers were not told:

Why this matters for policy decisions:

Open Exhibit E (PDF) →


Exhibit F: The KCPA Advocacy Deck

What Kansas was told:
The KCPA solves the problem through regulation.

What the deck itself admits:

What this really means:

If a substance requires potency caps, metabolite limits, bans on chemical manipulation, and strict age controls, lawmakers are not treating it like a supplement. They are treating it like a drug.

Why this supports Schedule I logic:

Open Exhibit F (PDF) →


Final Synthesis: Kansas Was Given the Case for Schedule I—Not the KCPA

From the materials submitted to Kansas:

Kansas lawmakers were not given neutral science. They were given a curated narrative—one that collapses under its own citations.

The evidence used to justify the KCPA actually satisfies the core criteria for Schedule I placement.
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