How much protein do you need on a GLP-1?
Most people on a GLP-1 medication should aim for 1.2 to 1.6 grams of protein per kilogram of body weight per day, with a hard floor of 1.2 g/kg even on the lowest-appetite days. For a 180 lb (82 kg) adult in active weight loss, that is roughly 100 to 130 grams daily. The reason is muscle: a large share of weight lost on these medications can come from lean mass when protein is neglected. The accuracy edge is using adjusted body weight for higher-weight individuals, then splitting the total into 25 to 40 grams per meal across three or four meals. The calculator below does both, then matches you to a protein powder that fits your symptoms.
GLP-1 protein calculator
Enter your details for a daily target, a per-meal split, and matched product picks.
Common recommendations
Where the calculator routes people most often. Tap any scenario for the full pick.
Most GLP-1 users, no specific issue
Dymatize ISO100 Hydrolyzed Whey Protein Isolate
25g of fast-digesting hydrolyzed isolate in a small, low-volume scoop.
Nausea or can't face creamy shakes
Isopure Clear Whey Isolate Protein Powder
Mixes thin like juice instead of a thick milkshake, so it goes down on queasy days.
Dairy-sensitive or GI issues
Orgain Organic Vegan Protein Powder
A complete dairy-free plant blend; aim 10–15% higher on total grams for the leucine gap.
Can't mix powder on bad days
Core Power by Fairlife 26g Protein Shake (12-Pack)
Ready-to-drink, 26g per bottle, zero prep or cleanup.
Want the most protein per scoop
Transparent Labs Grass-Fed Whey Protein Isolate
28g of grass-fed isolate per serving, fewest scoops to hit your target.
Best value isolate
Optimum Nutrition Gold Standard 100% Isolate
24g of clean isolate at a lower cost per serving than the premium tubs.
Travel and on-the-go
Isopure Clear Protein Stick Packs (20 Count)
Single-serve clear-protein sticks, no tub or scoop to carry.
Hard to mix by hand
VOLTRX VortexBoost Electric Shaker Bottle
Battery-powered mixer blends a smooth shake with no manual shaking.
Pick by your situation, not a ranking
The right protein on a GLP-1 is the one your gut tolerates. We group by problem.
Max protein, min volume
Whey isolate that packs the most protein into the least stomach volume, the core pick for a suppressed appetite.
Nausea & protein-fatigue days
Clear, light, and ready-to-drink options for the days a thick creamy shake turns your stomach.
Dairy-sensitive & GI
Plant blends that skip the dairy. Plant protein runs lower in leucine, so aim 10–15% higher on total daily grams.
Accessories
Small tools that make hitting your number easier: a mixer, a scale, and single-serve packets for the road.
What to avoid in a protein powder on a GLP-1
On a slow-moving, easily-bloated gut, three common protein-powder additives work against you. Skip them:
- ✕Added creatine: pulls water into muscle and can worsen GI upset during rapid loss.
- ✕High fiber blends: compound the constipation many GLP-1 users already fight.
- ✕Sugar alcohols (erythritol, sorbitol, maltitol): a common bloating and gas trigger on a slow-moving gut.
Guides
Frequently asked questions
- How much protein do I need on a GLP-1 like Ozempic or Wegovy?
- Most GLP-1 users should aim for 1.2 to 1.6 grams of protein per kilogram of body weight per day, with a hard floor of 1.2 g/kg even on low-appetite days, to protect muscle during rapid weight loss. For a 180 lb adult in active weight loss that is roughly 100 to 130 grams daily. The exact number depends on your height and weight, since the target is best calculated on adjusted body weight. Use the calculator above for your personalized daily target and per-meal split.
- What protein powder is best if I feel nauseous on my GLP-1?
- Choose a clear whey isolate like Isopure Clear, which mixes thin like a light juice rather than a thick creamy shake. The lighter texture is far easier to tolerate when GLP-1 medications slow your digestion and bring on nausea. For days you cannot mix anything at all, keep ready-to-drink bottles like Fairlife Core Power in the fridge. Both deliver 20 to 30 grams of protein with minimal effort on the days a milkshake-style drink is unbearable.
- Which protein should I use if I'm dairy-sensitive on a GLP-1?
- Use a plant blend such as Orgain Organic (pea and brown rice) or a single-ingredient Naked Pea isolate, both of which skip the lactose that can upset a slow GLP-1 gut. The one adjustment: plant protein has about 30 percent less leucine than whey, so aim 10 to 15 percent higher on your total daily grams, or add a leucine supplement, to keep the same muscle-preserving effect. Favor blends low in added fiber to avoid worsening bloating.
- How do I split my protein across the day on a GLP-1?
- Aim for 25 to 40 grams of protein per meal across three or four meals, rather than loading it all into one. Muscle protein synthesis is driven per meal and plateaus around 40 grams in a sitting, so spreading intake preserves more muscle. On a suppressed appetite this is often harder than the daily total, which is why a concentrated whey isolate scoop (24–28 g) is the easiest way to guarantee each eating occasion clears the per-meal floor.