GLP 1 - Supplement Stack

Most people on GLP-1 medications are never told which nutrients are being depleted — or that symptoms like hair loss, fatigue, cold hands, and low mood often have a straightforward nutritional explanation that a blood test can identify and a supplement protocol can fix.
This guide gives you the clinical testing roadmap that your prescribing doctor almost certainly won't. Based on published research including a 2026 review of nearly 500,000 GLP-1 users, it covers the eight biomarkers that matter most, explains what optimal levels actually look like (not just the NHS 'normal' range), and tells you exactly what to do if something comes back low.
What's included:
The 8 key biomarkers to monitor on GLP-1 medications — with NHS vs functional optimal ranges for each
A testing timeline: what to test before starting, at 6 months, at 12 months, and when symptoms appear
A symptom-to-test guide — hair loss, fatigue, low mood, plateau, cold intolerance, and more
Recommended Medichecks home blood test panels for each stage, with direct links
Supplement and food source guidance for each nutrient
A RAG (Red / Amber / Green) results interpretation guide
A note on MTHFR variants and why the form of your B vitamins matters
This guide is right for you if:
You're experiencing side effects you can't explain, you want to test before you supplement, or you simply want to know that you're monitoring the right things at the right times.
Created by Sherrie Dunn BSc PgDip MBANT, Registered Nutritional Therapist & Functional Medicine Practitioner, Root Cause Clinic.
PDF 3 — GLP-1 Supplement Protocol
Short description (for product card / thumbnail)
Evidence-based supplement recommendations by symptom — hair loss, muscle loss, fatigue, GI side effects, plateau, and skin health — with named brands, dosages, timing, and drug interaction guidance.
Full product description
Not all supplements are created equal, and not all GLP-1 side effects need the same response. This protocol cuts through the noise — giving you a clear, clinically grounded supplement plan organised by symptom, so you're not guessing what to take or why.
Written by a Registered Nutritional Therapist with MBANT registration, it reflects the latest research on GLP-1-related nutrient depletion and the real patterns seen in clinical practice. It tells you what to take, how much, which brand, when in the day, and — critically — what to avoid combining and why.
What's included:
A core protocol of 5 supplements appropriate for most people on GLP-1 medications — with dosage, timing, and named brands
Six symptom-specific protocols covering:
Hair loss and shedding
Fatigue and low energy
GI side effects (nausea, bloating, constipation)
Weight loss plateau
Muscle loss and physical performance
Skin health and 'Ozempic face'
Named brands for every recommendation — including practitioner-grade and widely available retail options
A drug interaction guide covering the most clinically relevant combinations to be aware of on GLP-1 medications
Guidance on when to test before supplementing (and why it matters)
This protocol is right for you if:
You're experiencing specific side effects and want a targeted, evidence-based response rather than a generic multivitamin. Or you're starting GLP-1 medication and want to get ahead of the depletions before they become a problem.