Best Supplements for GLP-1 Users (2026): What to Take on Ozempic, Wegovy, Mounjaro or Zepbound
Updated September 15, 2026 · By the GLP-1 SOS™ editorial team
If you are on Ozempic®, Wegovy®, Mounjaro®, Zepbound® or Rybelsus®, you have probably searched "what supplements should I take on a GLP-1" and found a wall of gummies, multivitamins and probiotics with "GLP-1" printed on the front. This guide sorts them by what a GLP-1 actually does to your body, so you can judge any product, including ours, by its label instead of its marketing.
What a GLP-1 changes, and what that means for supplements
| What the medication does | What you feel | What a supplement needs to contain |
|---|---|---|
| Slows gastric emptying and gut transit | Constipation, bloating, sulfur burps, shot-day nausea | Osmotic magnesium (citrate/oxide, 250 mg+), standardized ginger (5% gingerols, 200 mg), digestive enzymes, peppermint. Not bulk fiber, not stimulant laxatives. |
| Cuts food intake by about half | Fatigue, "GLP-1 fog," brittle nails, hair shedding, muscle loss | B12 (500 mcg), active B6, folate, iron bisglycinate, vitamin D, zinc; 90 to 120 g protein a day from food or a split shake; creatine if you lift. |
| Narrows the diet and shifts the microbiome | Irregularity, gas, more burps | A multi-strain probiotic taken daily for at least two weeks. |
| Rapid fat loss changes estrogen and stress hormones | For women: dryness, recurrent UTIs or yeast, low desire; for everyone: stress-driven shedding | Cranberry PACs (36 mg), targeted vaginal probiotic strains, ashwagandha, D3; for hair, saw palmetto 320 mg and pumpkin seed. |
The supplements that earn a place
1. Magnesium (citrate or oxide), 250 mg and up
The single most useful supplement for GLP-1 users, because constipation is the daily problem and magnesium is the gentle daily answer. A placebo-controlled trial found magnesium oxide improved stool frequency and consistency in chronic constipation (Mori et al., 2019). Check the label: 25 mg is a multivitamin, 250 mg is a bowel dose.
2. Ginger extract standardized to gingerols
For nausea and for keeping a slowed stomach moving (Ernst & Pittler, 2000; Wu et al., 2008). Look for "5% gingerols" and 200 mg or more, not "ginger powder."
3. A multi-strain probiotic
Probiotics increased stool frequency and improved consistency in a meta-analysis of randomized trials (Dimidi et al., 2014). Bifidobacterium and Lactobacillus blends, taken every day, are the practical choice.
4. B12, B6 and folate
Eating half as much means half the B vitamins, and B12 absorption is already slower in older adults and in people on metformin. Methylcobalamin 500 mcg covers it.
5. Iron, in the bisglycinate form
Low intake plus, for many women, existing low iron stores is the hidden reason for GLP-1 fatigue and for part of the hair shedding. Ferrous bisglycinate is the form that does not constipate. Get a ferritin test if you can.
6. Protein, and enough of it
Not a capsule, but the most important "supplement" on a GLP-1: 90 to 120 g a day, protein first at every small meal, to protect muscle while the weight comes off. Split shakes into two servings so they do not sit in a slow stomach.
7. For hair: iron, zinc, D3, biotin, folate, saw palmetto, pumpkin seed, ashwagandha
The GLP-1 shed (telogen effluvium triggered by rapid weight loss) needs the nutrients refilled, the stress signal calmed and the follicle defended, at real doses. That is the design of Daily Hair Shield: ten actives including saw palmetto 320 mg, pumpkin seed 250 mg (4:1), ashwagandha 300 mg, iron 18 mg, zinc 15 mg, D3 50 mcg, B12 500 mcg, folate 400 mcg, biotin 5,000 mcg and horsetail silica.
8. For women: cranberry PACs, vaginal probiotic strains, ashwagandha, D3
Rapid fat loss removes the fat-tissue estrogen source many post-menopausal women rely on, and intake changes shift the vaginal microbiome. Daily Intimate Health carries 36 mg cranberry PACs, Lactobacillus rhamnosus GR-1 and L. reuteri RC-14 (5 billion CFU), 600 mg ashwagandha, 30 mg saffron and 2,000 IU D3, hormone-free.
What to skip
- "GLP-1 gummies" and "GLP-1 vitamins" with a proprietary blend. If the label will not tell you the magnesium and ginger doses, assume they are too small to matter.
- Fiber supplements as a first move. Bulk on a slowed gut usually means more bloat. Try magnesium and water first.
- Daily stimulant laxatives. Rescue only.
- Anything promising to "boost your GLP-1." No supplement raises the drug's effect, and the ones that claim to are selling fiber and berberine at a premium.
- Green tea extract and stimulant fat burners. Unnecessary on a GLP-1 and hard on an empty stomach.
How GLP-1 SOS Daily Gut Relief fits
It is the gut-and-energy layer of the list above in one bottle: 250 mg magnesium (citrate and oxide), 200 mg ginger at 5% gingerols, a 19-strain probiotic, digestive enzymes, 50 mg peppermint, 500 mcg B12, 9 mg iron bisglycinate, active B6, folate, biotin, vitamin D, zinc and ashwagandha, two capsules with dinner, no proprietary blend, made in a Utah cGMP facility. Full label on the ingredients page. Hair and intimate health are separate formulas because the doses that work for them do not fit in the same two capsules.
Frequently asked
Should I take a multivitamin on Ozempic?
A basic multivitamin covers small gaps, but it will not touch constipation, nausea or burps, and most contain only 25 to 50 mg of magnesium. Use it for insurance, not as the fix.
What is the best supplement for constipation on a GLP-1?
Magnesium citrate or oxide at 250 mg or more, daily, with water, plus a probiotic for the long game. See the constipation guide.
Can supplements interact with semaglutide or tirzepatide?
The nutrients and botanicals above have no known interaction with either drug. Magnesium and iron should be spaced two hours from thyroid medication and antibiotics. Tell your prescriber what you take.
Do I need electrolytes on a GLP-1?
If you are drinking less and eating less salt, a light electrolyte drink helps with the headaches and fatigue of under-hydration; sugary sports drinks are not needed.
See Daily Gut Relief — 60-day money-back guarantee
References
- Mori S, et al. A randomized double-blind placebo-controlled trial on the effect of magnesium oxide in patients with chronic constipation. J Neurogastroenterol Motil. 2019;25(4):563-575.
- Dimidi E, et al. The effect of probiotics on functional constipation in adults: a systematic review and meta-analysis. Am J Clin Nutr. 2014;100(4):1075-1084.
- Ernst E, Pittler MH. Efficacy of ginger for nausea and vomiting: a systematic review of randomized clinical trials. Br J Anaesth. 2000;84(3):367-371.
- Wu KL, et al. Effects of ginger on gastric emptying and motility in healthy humans. Eur J Gastroenterol Hepatol. 2008;20(5):436-440.
- Wilding JPH, et al. STEP 1. N Engl J Med. 2021;384:989-1002. · Jastreboff AM, et al. SURMOUNT-1. N Engl J Med. 2022;387:205-216.
Related guides: GLP-1 constipation · Sulfur burps · Shot-day nausea · Reviews · About GLP-1 SOS
This article is educational and is not medical advice. Ozempic®, Wegovy® and Rybelsus® are trademarks of Novo Nordisk A/S; Mounjaro® and Zepbound® are trademarks of Eli Lilly and Company. GLP-1 SOS™ is not affiliated with either company. These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.