The 10 Supplements You Actually Need on a GLP-1
Disclosure: The Ritual Guide is reader-supported. When you buy through links on this page, we may earn an affiliate commission. We independently select and review every product — our recommendations are never influenced by brand partnerships. Learn more about our editorial process.
The first time someone close to us started Ozempic, she called two months in, not to celebrate the weight loss — to ask why her hair was falling out in the shower.
Nobody had told her that GLP-1 medications don't just suppress hunger. They suppress thirst too. They slow digestion. And when you're eating 30–50% less food than before, you're getting 30–50% less of everything your body still needs in exactly the same amounts: protein to hold onto muscle, minerals to keep your cells firing, fiber to keep your gut moving, fat-soluble vitamins your body can't make on its own.
The supplement market spotted this gap immediately. Now every brand has an "Ozempic-friendly" bundle, a "GLP-1 support stack," a $70 kit with clinical-sounding language and zero clinical backing. It's the same multivitamin they sold last year with a new label.
We went back to the actual research — peer-reviewed studies, Mayo Clinic guidance, the 2025 Obesity Pillars review on GLP-1 supplementation — and built this list from there. Ten supplements that address what's actually happening in your body, in the order you should care about them.
Key Takeaways
- Muscle loss is the biggest underrated risk — up to 39% of weight lost on GLP-1s can come from lean mass, not fat.
- Electrolytes and magnesium matter more than most people realize, because appetite suppression also suppresses thirst cues.
- Fiber is doing double duty: easing constipation (the most common long-term side effect) and supporting natural GLP-1 production in the gut.
- A basic multivitamin, vitamin D3, B12, and omega-3 cover the micronutrient gaps that come from simply eating less food.
- Collagen and probiotics address the secondary effects — skin laxity, hair thinning, and disrupted gut bacteria — that catch most people off guard.
The 10 Best Supplements for GLP-1 Users
We ranked these by how directly they address the most common GLP-1-related nutritional gaps. Every pick was evaluated on formulation quality, third-party testing, cost-per-dose, and how well it fits into a reduced-appetite routine.
Thorne Creatine Monohydrate
Best For: Muscle preservation during GLP-1 weight loss
Creatine monohydrate is the most studied sports supplement in history, and its relevance for GLP-1 users goes beyond the gym. A 2025 narrative review in Obesity Pillars found that creatine, combined with resistance training, may help preserve lean body mass during weight loss — the exact problem GLP-1 users face.
Thorne's formula is NSF Certified for Sport, which means every batch is tested for banned substances and label accuracy. It's unflavored micronized powder — no fillers, no sweeteners, no proprietary blends. Just 5g of creatine per scoop, with 90 servings per container.
Why We Like It
It's the cleanest creatine we've found at this price point. NSF certification plus Thorne's published testing standards make it one of the few creatine products we'd recommend without caveats.
Price
$44 for 90 servings (check current pricing)
Saint Mingiano Rapid Rehydr8 Electrolyte Capsules
Best For: Hydration support when appetite and thirst are suppressed
GLP-1 medications don't just suppress hunger — they also dampen thirst signals. That means you're drinking less without realizing it. Add in common GI side effects like nausea or diarrhea, and electrolyte balance goes sideways fast.
Rapid Rehydr8 delivers a precise blend of sodium, potassium, magnesium, and calcium in easy-to-swallow capsule form — no powder to mix, no sugar, no artificial ingredients. Made in the USA under GMP standards, non-GMO, and lab-tested for purity.
Why We Like It
The capsule format removes a real compliance barrier. GLP-1 users frequently report heightened sensitivity to sweetness and texture — capsules sidestep the flavor fatigue that keeps people from finishing a powder. 100 capsules at under $25 is one of the better value electrolyte options on the market.
Price
$24.95 for 100 capsules (check current pricing)
Vitamin World Psyllium Husk Capsules
Best For: Constipation relief and digestive regularity on GLP-1s
Constipation is the most common long-term GI side effect of GLP-1 medications, and it tends to stick around long after nausea subsides. Psyllium husk is the most-studied fiber supplement for this exact problem — it absorbs water, adds bulk, and gets things moving without the bloating that comes with prebiotic fibers.
Vitamin World's psyllium capsules deliver 4,500mg of psyllium husk and 4g of dietary fiber per serving in a plant-based formula free of artificial colors, flavors, and preservatives. Made in GMP facilities in the USA. The capsule form is a meaningful advantage over powders for anyone already managing GI sensitivity — no texture, no mixing, no taste.
Why We Like It
Psyllium doesn't ferment the way inulin and chicory root do, so it causes far less gas and bloating. For someone already dealing with slowed gastric emptying, that distinction matters a lot. Capsule format is also easier to stick with than powder when nausea is a factor.
Price
$14.44 for 120 capsules (check current pricing)
OLLY Women's Daily Multivitamin Gummies
Best For: Covering micronutrient gaps from reduced food intake
When you're eating half as much food, you're getting half as many vitamins and minerals. A multivitamin won't fix a bad diet, but it does cover the gaps that show up when caloric intake drops to 1,000–1,200 calories per day — which is common on GLP-1s.
OLLY's Women's Multi delivers B vitamins for cellular energy, vitamins A, C, and E for antioxidant support, vitamin D for bone health, biotin, and folic acid — all in a two-gummy daily dose. No synthetic colors, no artificial flavors, gluten-free. The 130-count bottle covers 65 days at under $0.12 per day.
Why We Like It
Two gummies and you're done — no pills to choke down when nausea is already a factor. The gummy format is a genuine compliance advantage for GLP-1 users managing suppressed appetite and pill fatigue.
Price
$14.97 for 130 count (65-day supply) (check current pricing)
Double Wood Magnesium Glycinate 400mg
Best For: Sleep, muscle cramps, and stress support
Magnesium is one of the most common deficiencies in the general population — the WHO estimates up to 75% of U.S. adults don't meet the recommended daily intake — and eating less food makes it worse. GLP-1 users frequently report muscle cramps, poor sleep, and increased anxiety, all of which have magnesium connections. We've covered the [best magnesium for sleep](https://ritualguide.co/guides/best-magnesium-for-sleep) in a separate guide if sleep is your primary concern.
Double Wood uses magnesium bisglycinate — the chelated form that research consistently shows is gentler on the stomach and better absorbed than oxide or citrate. Each capsule delivers 400mg, manufactured and third-party tested in the USA for microbes and heavy metals. Vegan, non-GMO, and gluten-free. At 180 capsules per bottle, this is a six-month supply.
Why We Like It
Double Wood is one of the most underrated supplement brands for value — rigorous third-party testing without the premium markup. Glycinate is the form that shows up most in sleep and anxiety research, and it won't cause the laxative effect that citrate and oxide are known for.
Price
$16.95 for 180 capsules (6-month supply) (check current pricing)
NAKED Vitamin D3 5000 IU
Best For: Bone health and immune support during caloric restriction
Vitamin D deficiency affects roughly 25% of adults at baseline. People with obesity are at even higher risk because vitamin D is fat-soluble and gets sequestered in adipose tissue. Rapid fat loss on a GLP-1 can actually release stored vitamin D, but ongoing supplementation still matters — especially if you're eating less of the fortified foods that provide it.
NAKED delivers 5,000 IU per softgel in a high-potency formula designed for periods of low sun exposure, indoor lifestyles, or high SPF use. Formulated in a GMP-certified facility with no unnecessary additives. 200 softgels per bottle — essentially a seven-month supply at under $0.07 per day.
Why We Like It
Simple ingredient list, GMP-certified, and one of the cheapest high-impact supplements on this list. At roughly $0.07 per day for 5,000 IU, this is the easiest yes on the stack.
Price
$13.99 for 200 softgels (check current pricing)
Nature Target Multi Collagen Peptides Powder
Best For: Skin elasticity, hair strength, and joint support during rapid weight loss
Rapid weight loss does predictable things to skin and hair. Collagen production slows when caloric intake drops, and the structural proteins in skin, hair, and joints take the hit. GLP-1-related hair shedding and skin laxity are well-documented secondary effects — not from the medication directly, but from the speed and scale of weight loss.
Nature Target's formula covers Types I, II, III, V, and X collagen from four food sources — pasture-raised cattle, chickens, wild-caught deep-sea fish, and eggs. Each scoop delivers 10g of collagen peptides with 18 amino acids, plus vitamin C and hyaluronic acid to support the body's natural collagen production. The formula also includes digestive enzymes and 3 billion CFU probiotics. Third-party tested, cGMP-certified, no fillers or artificial additives.
Why We Like It
Five collagen types in one scoop covers more ground than a single-source product. It dissolves in hot or cold liquids without clumping — mix it into coffee, smoothies, or water without any extra effort.
Price
$20 for 35 servings (check current pricing)
MAV Nutrition Omega 3-6-9 + DHA Gummies
Best For: Brain, heart, and inflammation support — plant-based
Omega-3 fatty acids come primarily from fish, and if you're eating less food overall, your omega-3 intake drops with it. The anti-inflammatory and cardiovascular benefits of EPA and DHA are well-documented in the research — and inflammation management matters more during rapid metabolic change.
MAV Nutrition's gummies deliver a triple omega formula — 3, 6, and 9 — sourced entirely from flaxseed and safflower oils, with 50mg of DHA from algae. No fish, no gelatin. The lemon and orange flavor makes these one of the easier supplements to take consistently. Vegetarian, non-GMO, GMP-certified, no artificial flavors or sweeteners.
Why We Like It
Plant-based omegas matter here because GLP-1 users often deal with nausea, and fish oil burps are a real compliance problem. The gummy format removes one more friction point from a stack that already asks a lot of the body.
Price
$17.95 for 60 gummies (check current pricing)
Triquetra Health L-Methylfolate 15mg + Methyl B12
Best For: Energy, mood, and methylation support when food intake drops
Vitamin B12 deficiency is already common in adults over 50 and in people taking metformin — two groups with major overlap in the GLP-1 population. Research suggests GLP-1 medications may reduce B12 absorption further, though the data is still emerging. Folate and B12 have a co-dependent relationship in the body's methylation processes, which affect mood, cognitive function, and homocysteine metabolism.
Triquetra delivers 15mg of L-methylfolate in the active 5-MTHF form — immediately absorbed without requiring metabolic conversion, which matters for anyone with methylation issues. Paired with methylcobalamin B12, which works together to complete the methylation cycle. This is a high-potency formula designed for people who need meaningful supplementation, not a token B-vitamin dose.
Why We Like It
The active 5-MTHF form makes a real difference for people who can't properly process folic acid. Combining methylfolate and methyl B12 in one capsule covers both sides of the methylation equation — something most B-complex supplements miss entirely.
Price
$21.97 for 60 capsules (60-day supply) (check current pricing)
Seed DS-01 Daily Synbiotic
Best For: Gut microbiome support and digestive balance
GLP-1 medications slow gastric emptying and change the speed at which food moves through your system. That shift can disrupt gut bacteria balance, and the reduced dietary variety that comes with eating less can make it worse. A well-formulated probiotic may help support digestive comfort and microbiome diversity during treatment.
Seed's DS-01 contains 24 clinically and scientifically studied probiotic strains at 53.6 billion AFU, with a patented plant-based prebiotic outer capsule. The capsule-in-capsule ViaCap delivery technology protects probiotics through digestion to deliver the full dose to the colon. Shelf-stable, no refrigeration required. Backed by extensive third-party testing for safety and quality.
Why We Like It
This isn't a generic 10-strain probiotic from a drugstore shelf. The strain specificity, delivery mechanism, and published research on the actual strains in the formula set it apart from competitors making vague "gut health" claims.
Price
$59.99 for 60 capsules (30-day supply) (check current pricing)
How to Build a GLP-1 Supplement Routine That Actually Works
You don't need to start all 10 at once. That's a fast way to feel overwhelmed and quit after a week.
Start with the three that address the most immediate risks: creatine for muscle preservation, electrolytes for hydration, and fiber for digestion. These cover the problems most GLP-1 users notice first.
Add the multivitamin and vitamin D next. These are cheap, low-effort, and cover the background nutrient erosion that you won't feel until it's already a problem.
Then layer in the rest based on what you're experiencing. Hair thinning or loose skin? Collagen. Fatigue and brain fog? Methylfolate and B12. Muscle cramps at night? Magnesium. Digestive discomfort beyond constipation? Probiotic. General inflammation or cardiovascular concern? Omega-3.
Editor's Note
Take fiber supplements at least 2 hours apart from any oral medications. Psyllium can slow the absorption of other drugs if taken at the same time. Injectable GLP-1s (like semaglutide and tirzepatide) aren't affected by oral supplement timing.
Timing Matters
Spread your supplements across the day instead of swallowing everything at once. Here's a simple split that works with most GLP-1 routines:
The Ritual
Multivitamin gummies, vitamin D3, omega-3 gummies — with your first meal, even if it's small.
Fat-soluble vitamins need dietary fat to absorb properly.
Electrolyte capsules — take with a full glass of water to support hydration through the afternoon.
Methylfolate + B12 can go here too — timing is flexible.
Magnesium glycinate, fiber capsules, probiotic.
Both magnesium and fiber support relaxation and overnight digestion.
Creatine (timing doesn't matter — consistency does), collagen (mix into coffee or any drink).
These two are the easiest to fit into whatever routine you already have.
We put together a full step-by-step daily routine in our GLP-1 support ritual if you want the exact timing and product pairings laid out.
What the Research Says
A 2025 narrative review in Obesity Pillars examined dietary supplementation during GLP-1 receptor agonist treatment and found that protein supplementation at 1.2–2.0 g/kg/day, combined with resistance training and creatine monohydrate, may help preserve lean body mass. Fiber and probiotics were also found to improve bowel regularity — a common side effect of the medications.
What Your GLP-1 Stack Should Look Like
The Bottom Line
The best supplements for GLP-1 users aren't exotic or expensive. They're the basics — done right.
Dosed correctly and timed around the specific challenges that come with eating less food, these 10 supplements cover the gaps that matter most: muscle preservation, hydration, digestion, micronutrients, and the secondary effects on skin, hair, and gut health.
If you're looking for the best protein options to pair with these supplements, we've reviewed the top picks in our best protein shakes for GLP-1 users guide. And for a side-by-side breakdown of fiber options, check our psyllium vs prebiotic fiber comparison.
Talk with your healthcare provider before starting a new supplement routine — particularly while on prescription medication.
Editorial Disclaimer
This article is for informational purposes only and is not a substitute for professional medical advice. The Ritual Guide doesn't diagnose, treat, or cure any condition. Always consult your healthcare provider before starting any new supplement, especially if you're pregnant, nursing, taking medication, or managing a chronic condition.
Frequently Asked Questions
