Losing weight? Protect your muscle.

Don't Let Your Medication Take Your Muscle With It


Up to 40% of weight lost on GLP-1 medications like Ozempic and Wegovy is lean muscle, not fat. The right protein makes the difference between losing weight well and losing the strength your body needs to keep it off.

What your medication isn't telling you

GLP-1 medications are effective for weight loss. But without adequate protein, your body breaks down muscle for energy. Here's what the research shows.

40%
of weight lost on GLP–1 medications
can be lean muscle, not fat
10 yrs
of muscle loss compressed
into 12–18 monthsof treatment
1.2–1.6g
daily protein intake recommended by clinicians to preserve muscle on GLP–1
Sources: STEP 1 trial (semaglutide): 39–40% of weight lost was lean mass (Linge et al., Circulation, 2024). Prado et al., Lancet Diabetes & Endocrinology, 2024: muscle loss ranges from 25–39% of total weight lost. Protein recommendation of 1.2–1.6g/kg/day: American Journal of Clinical Nutrition, 2025.

Why Tuff Supps?

Easy to Digest 99.9% lactose-free WPI. No gums, no thickeners. Gentle on a sensitive stomach.
Grass-Fed and Natural Grass-fed whey, naturally sweetened with organic stevia. No artificial anything.
110% Money Back Guarantee 110% Money Back Not happy within 30 days? We refund 110% of your purchase. No questions.
No Artificial Junk No fillers, no artificial sweeteners, no gums. Every ingredient earns its place.

A simple plan that works

Your daily muscle preservation plan

You don't need a complicated supplement stack. These three products cover everything clinicians recommend for maintaining muscle, joints and energy on GLP-1 medication.

Step 1 - Your Protein

Step 1 - Your Protein

The highest leucine content of any protein source — the amino acid that triggers muscle preservation. 99.9% lactose-free and easy to digest even when appetite is low. Mix thin with water for a light, gentle shake.

Shop WPI →
Step 2 - Your Recovery

Step 2 - Your Recovery

Combines whey protein with ~5g collagen peptides to support skin elasticity, joints and connective tissue during rapid weight loss. Addresses both muscle preservation and the structural changes your body goes through.

Shop Rebuild →
Step 3 - Your Muscle Protector

Step 3 - Your Muscle Protector

Preserves lean muscle during calorie deficit. Also supports energy levels and cognitive function — two things GLP-1 users commonly struggle with. 5g daily, unflavoured, mixes into any shake.

Shop Creatine →

What Happens With And Without Adequate Protein

With the Tuff Supps Plan
Without protein support
Muscle vs fat loss
Metabolism
Skin elasticity
Joints and bones
Energy and cognition
Preserve lean muscle while you lose fat
Maintain your metabolic rate long-term
Support skin elasticity with collagen
Protect joints and connective tissue
Support energy and cognitive function with creatine
Up to 40% of weight lost is muscle, not fat
Metabolism slows, making regain more likely
Skin loses elasticity ("Ozempic face")
Joints and bones weaken under rapid change
Fatigue, brain fog and low energy

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 WPI is 99.9% lactose-free, naturally sweetened and made without gums or 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.

Straight answers for people on Ozempic, Wegovy or similar weight loss medications.

Show usually asked questions with answers and pair with image

Will protein shakes make my nausea worse?


Our WPI is 99.9% lactose-free and made without gums, 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.

How much protein do I need while on Ozempic or Wegovy?


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.

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 25-28g 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.

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.