# Taylor et al – 2017 – Comparison of cannabinoids in hair with self-reported cannabis consumption in heavy light

> **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637)
> **Publisher:** CED Clinic (https://cedclinic.com)
> **Canonical URL:** https://cedclinic.com/taylor-et-al-2017-comparison-of-cannabinoids-in-hair-with-self-reported-cannabis/
> **Published:** 2026-04-01T13:08:02-04:00 | **Last Modified / Clinically Audited:** 2026-09-28T16:08:12-04:00
> **Clinical Summary:** Taylor et al - 2017 - Comparison of cannabinoids in hair with self-reported cannabis consumption in heavy light

---

CED Clinical Relevance  #50Monitored Relevance  Early-stage or contextual signal requiring further evidence before action.
⚒ Policy Watch  |  CED Clinic

Agency
regulations.gov

Why This Matters

This item covers developments relevant to [cannabis medicine](https://cedclinic.com/essential-oils-industrial-hemp-antimicrobial-benefits/) and [clinical practice](https://cedclinic.com/cannabis-reproductive-health-women-clinical-evidence/). Clinicians monitoring evidence in this area should review the source material.

[Clinical Summary](https://cedclinic.com/recreational-marijuana-legalization-24-states-update/)
Summary not available. See source for full context.

Dr. Caplan’s Take

“This is a development worth tracking. The clinical implications will become clearer as more evidence accumulates.”

[Clinical Perspective](https://cedclinic.com/religious-beliefs-cannabis-use-clinical-perspectives/)
🧠 Clinicians should review this item in the context of their current practice and patient population.

💬 Join the Conversation

Have a question about how this applies to your situation? [Ask Dr. Caplan →](https://benjamincaplan.com/ask-dr-caplan)

Want to discuss this topic with other patients and caregivers? [Join the forum discussion →](https://cedclinic.com/interact/discussion-forums/forum/cannabis-industry/)

Have thoughts on this? Share it:

[𝕏 Share on X](https://twitter.com/intent/tweet?text=Just%20read%20this%20on%20CEDclinic.com%3A%20%20%40drcaplan&url=https%3A//www.regulations.gov/document/FDA-2025-P-5438-0010)[in Share on LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A//www.regulations.gov/document/FDA-2025-P-5438-0010)[🦥 Share on BlueSky](https://bsky.app/intent/compose?text=Just%20read%20this%3A%20%20--%20via%20%40drcaplan.bsky.social%20https%3A//www.regulations.gov/document/FDA-2025-P-5438-0010)[📷 Follow on Instagram](https://www.instagram.com/drbenjamincaplan/)[📝 Read more on Substack](https://substack.com/@doctorapproved)[🔔 Subscribe via RSS](https://cedclinic.com/category/cannabis-news/feed/)

📰 Source: [https://www.regulations.gov/document/FDA-2025-P-5438-0010](https://www.regulations.gov/document/FDA-2025-P-5438-0010)

{“@context”: “https://schema.org”, “@type”: “GovernmentService”, “name”: “”, “url”: “https://www.regulations.gov/document/FDA-2025-P-5438-0010”, “about”: “regulations gov”, “provider”: “regulations.gov”}

 

### Related

---

### Verification & Medical Governance

- **Lead Clinical Author:** Benjamin Caplan, MD
- **Credentials:** Board Certified in Family Medicine (ABFM), Founder & CMO CED Clinic & CED Foundation, Author of *The Doctor-Approved Cannabis Handbook* (Penguin Random House).
- **Clinical Scale:** 350,000+ lifetime evaluations overseen; 81,008-patient Real-World Evidence Registry (`~/.ced_rwe_vault.db`); 125,000+ peer-reviewed study literature observatory (`http://localhost:8768/api/explorer/terminal`).
- **License Verification:** Commonwealth of Massachusetts License #240562 (https://checkahealthlicense.mass.gov/).
- **NPI Registry:** 1962722637 (https://npiregistry.cms.hhs.gov/provider-view/1962722637).
- **Ethics & Data Privacy:** Clinical registry observations adhere strictly to HIPAA Safe Harbor de-identification (45 CFR § 164.514(b)) and criteria for secondary research exemption under 45 CFR § 46.104(d)(4).