Muscle Preservation Plan | Protein for GLP-1 & Weight Loss Medication
✓ 27g grass-fed whey + ~5g collagen to preserve muscle and joints during weight loss
✓ Supports skin elasticity, joints and connective tissue
✓ Naturally low lactose. No nausea triggers.
✓ No artificial sweeteners, fillers or gums
110% Money Back Guarantee
Why Rebuild for GLP-1 users
Losing weight on Ozempic, Wegovy or similar medication? Up to 40% of the weight you lose can be lean muscle, not fat. Rebuild gives your body what it needs to preserve muscle, protect your joints and support skin elasticity while your medication does its job.
What it does
Rebuild combines grass-fed whey protein with hydrolysed collagen peptides in one daily shake. Muscle preservation and structural support together, designed to be gentle enough for days when your appetite is barely there.
Why Rebuild for GLP-1 users
- 27g grass-fed whey protein to preserve lean muscle during weight loss
- ~5g hydrolysed collagen peptides to support skin elasticity, joints and connective tissue
- Naturally low lactose for easy digestion on a sensitive stomach
- No gums, thickeners or artificial sweeteners — nothing to trigger nausea
- Mixes thin with cold water — light enough for zero-appetite days
- Naturally sweetened with organic stevia
- Made in Australia. 110% money-back guarantee.
What you'll notice
- Muscle preserved while you lose fat, not strength
- Skin elasticity supported through daily collagen intake
- Less joint and tendon discomfort as your body changes
- A light, smooth shake your stomach can actually handle
How to use it
- One scoop with cold water daily — mix thin for a light, easy shake
- Start with half a scoop if appetite is very low, build up over time
- Take it whenever works — morning, afternoon or post-exercise
- Consistency matters more than timing
Add creatine to protect even more muscle
Creatine monohydrate is clinically shown to preserve lean muscle during calorie deficit and support energy and cognitive function — two things GLP-1 users commonly struggle with. Buy 2 tubs of Rebuild and get a free Creatine Monohydrate to complete your muscle preservation plan.
Bottom line
Your medication handles the weight loss. Rebuild handles the muscle, joints, skin and recovery. Grass-fed, naturally sweetened, gentle on your stomach. One shake a day to protect what matters while you lose what doesn't.
Tuff Supps 110% Money Back Guarantee
Train Risk-Free
Your first order is backed by our 110% money-back guarantee.
If it’s not right for you within 30 days, we’ll refund 100% + 10% extra.
We do it because we build supplements we take ourselves — and we’re confident you’ll want to keep using them.
Muscle Preservation Plan | Protein for GLP-1 & Weight Loss Medication
Why Tuff Supps?
110% Money Back
Not happy within 30 days? We refund 110% of your purchase. No questions.
What Happens With And Without Adequate Protein
We get it. You can barely eat.
"How am I supposed to drink a protein shake?"
GLP-1 medications suppress your appetite and can cause nausea. Thick, heavy protein shakes are the last thing you want. That's why we designed ours differently.
Our Rebuild + Collagen is 99% lactose-free, naturally sweetened and made without thickeners. Mix it thin with cold water for a light, easy shake that won't sit heavy or trigger nausea. No artificial sweeteners. No chalky texture. No gut drama.
Start with half a scoop if you need to. Build up as your body adjusts. The goal is consistency, not volume.
Your medication handles the weight loss
Let us handle the muscle preservation
You're already doing the hard part. Don't let inadequate protein undo the progress. Protect your muscle, support your joints, maintain your energy — with clean, grass-fed protein that's gentle enough for your worst appetite days.
More than just a protein powder
Why Collagen Matters
Strength increases faster than your joints can adapt. That's why injuries happen. Hydrolysed collagen peptides support the structures that hold you together while whey builds the muscle on top.
Benefits:
- Reinforces joints, tendons and ligaments under load
- Supports skin elasticity and gut health
- Absorbs fast — hydrolysed peptides are broken down for rapid delivery
- Works alongside whey, not instead of it
5g of collagen per serve. No need for a separate supplement.
Shop with Confidence, Satisfaction Guaranteed
110% Money-Back Guarantee
We stand behind every Tuff Supps product. That’s why your first purchase is backed by our 110% money-back guarantee.
If you’re not satisfied within 30 days of receiving your order, we’ll refund 100% of your purchase - plus an extra 10%.
No hype. No pressure. Just supplements we’re confident will earn a place in your routine.
Simply contact our team within 30 days and return the product. We’ll take care of the rest.
Whey Protein FAQs
Get the answers you need about our whey protein products, including details on ingredients, benefits, usage, and more. Our FAQs cover everything from protein sources to mixing tips, helping you make the most of your supplement.
Will protein shakes make my nausea worse?
Our Rebuild Whey + Collagen is 99% lactose-free and made without thickeners or artificial sweeteners - the ingredients that typically trigger nausea. Mix it thin with cold water for a light shake. Many customers on GLP-1 medications find it easier to tolerate than whole food protein. Start with half a scoop and build up as your body adjusts.
Will this help with joint pain?
Rebuild contains hydrolysed bovine collagen peptides which support joint, tendon and ligament health over time. It's not a quick fix, but consistent use alongside training helps reinforce the connective tissue that takes a beating during heavy or high-volume sessions. Most customers notice a difference within 4-6 weeks.
How much protein do I need while on Ozempic or Mounjaro?
Clinicians recommend 1.2 to 1.6 grams of protein per kilogram of body weight daily for people on GLP-1 medications. For a 75kg person, that's 90-120g per day. When your appetite is suppressed, hitting that target with whole food alone is difficult. One or two protein shakes a day can bridge the gap without forcing you to eat when you don't want to.
Can I take creatine with GLP-1 medication?
Creatine monohydrate has no known interactions with GLP-1 medications. It helps preserve lean muscle during calorie deficit and supports energy and cognitive function — two areas GLP-1 users commonly struggle with. As always, check with your prescribing doctor if you have specific concerns.
How does it taste?
Thick, creamy and naturally sweetened with organic stevia. No artificial aftertaste. Available in Vanilla, Dutch Chocolate, Salted Caramel, Banana and Strawberry. Not sure? Grab a single-serve sample before committing.
Will collagen help with loose skin during weight loss?
Hydrolysed collagen peptides support skin elasticity, which can be affected during rapid weight loss. Our Rebuild Whey + Collagen delivers ~5g of collagen alongside 27g of whey protein per serve. It's not a guarantee against loose skin, but it gives your body the building blocks it needs to support skin structure during the process.
Is this a meal replacement?
No. Tuff Supps protein is a supplement, not a meal replacement. It's designed to help you hit your daily protein target alongside whatever food you're eating. If you're struggling to eat enough, a protein shake is a practical way to get 27g of high-quality protein without forcing a full meal.
What's the best time to take protein when I have no appetite?
Whenever you can tolerate it. There's no magic timing window. Many GLP-1 users find mornings easiest before the medication fully kicks in. Others prefer a light shake mid-afternoon. Mix it thin with cold water — cold drinks tend to be better tolerated than warm ones on GLP-1 medications. Consistency matters more than timing.