Weight Loss Shot Guide

Best Supplements for Ozempic & GLP-1 Users (2026)

GLP-1 medications change how you absorb and use nutrients. Rapid weight loss depletes magnesium faster. Suppressed appetite leads to nutritional gaps. Changed gut motility creates GI side effects that standard probiotic advice doesn't address. Generic supplement recommendations don't account for any of this. Here are the three supplements with the strongest evidence specifically for GLP-1 users — what they do, why they matter on these medications, and which brands meet the quality bar.

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Our Top Picks

#1

Thorne Creatine Monohydrate

4.7

$35

The only supplement with strong clinical evidence for preserving muscle during caloric deficit — non-negotiable for GLP-1 users.

Pros

  • 5g clinically proven dose per serving
  • NSF Certified for Sport
  • Unflavored — mixes with anything
  • Thorne purity standards exceed most brands

Cons

  • Takes 2-3 weeks of consistent use to see results
  • No taste appeal on its own

Quick Specs

Dose

5g creatine monohydrate

Servings

90

Certification

NSF Certified for Sport

Form

Unflavored powder

Our Verdict

Non-negotiable for anyone on GLP-1 medications. Creatine has stronger clinical evidence than any other supplement for preserving lean muscle during rapid weight loss. Use 5g daily.

#2

Garden of Life Dr. Formulated Probiotics

4.5

$28

50 billion CFU from 16 strains — directly addresses the GI side effects that affect 30-40% of GLP-1 users.

Pros

  • 50 billion CFU from 16 clinically studied strains
  • Shelf stable — no refrigeration needed
  • Organic certified
  • Includes prebiotics for enhanced effectiveness

Cons

  • Results take 3-4 weeks to notice
  • Higher price than generic probiotics

Quick Specs

CFU

50 billion

Strains

16

Storage

Shelf stable

Prebiotics

Included

Our Verdict

GLP-1 medications significantly change gut motility. A high-quality multi-strain probiotic directly addresses the nausea, constipation, and digestive discomfort that sends many users back to their doctor.

#3

Thorne Magnesium Bisglycinate

4.6

$22

The most bioavailable form of magnesium — critical during rapid weight loss when deficiency accelerates.

Pros

  • Bisglycinate is the most absorbable form
  • No laxative effect unlike magnesium oxide/citrate
  • Supports sleep quality and muscle function
  • Thorne purity standards

Cons

  • More expensive than oxide forms (though those don't absorb well)
  • Takes 2-4 weeks for full effect

Quick Specs

Dose

200mg per capsule (take 1-2)

Form

Bisglycinate (most bioavailable)

Timing

Before bed

Servings

60

Our Verdict

Magnesium deficiency is common and worsens during rapid weight loss. Bisglycinate specifically avoids the diarrhea effect that makes other forms impractical at therapeutic doses.

Frequently Asked Questions

What supplements should I take on Ozempic?

At minimum: creatine monohydrate (5g daily for muscle preservation), a high-quality multi-strain probiotic (for GI side effects), and magnesium bisglycinate (for deficiency that accelerates during weight loss). Many users also benefit from B12 and Vitamin D supplementation, particularly if dietary intake is low due to suppressed appetite.

Can I take vitamins with GLP-1 medications?

Yes. GLP-1 receptor agonists like semaglutide and tirzepatide do not interact with standard vitamins or mineral supplements. There are no pharmacological interactions to be concerned about. The bigger issue is that suppressed appetite means many GLP-1 users eat too little and develop nutritional gaps — supplementation helps close those gaps.

Why is creatine important on GLP-1?

During rapid caloric restriction, the body breaks down both fat and muscle for energy. Creatine monohydrate has stronger clinical evidence for preserving lean muscle mass during a caloric deficit than any other supplement. Multiple studies show 5g per day maintains strength and muscle volume even during significant weight loss. On GLP-1 medications where rapid weight loss is common, creatine is the most important supplement to take.

Are probiotics necessary on Wegovy?

Not mandatory, but 30-40% of GLP-1 users experience GI side effects including nausea, constipation, and digestive discomfort. Probiotics directly address these issues by supporting gut microbiome balance and motility. If you're in the 60-70% who tolerate GLP-1 GI effects well, probiotics are still beneficial but less urgent. If you're struggling with nausea or constipation, a high-quality multi-strain probiotic should be one of your first purchases.

Also Read: Best Protein Powders for GLP-1 Users

Supplements and protein work together. See our ranked protein recommendations for Ozempic and Wegovy users.