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GLP Eats Muscle.
Preservation Protein™ Helps.
⭐⭐⭐⭐⭐ 4.7 Stars
500+ Reviews • 13K+ Users
On a GLP, up to 40% of the weight you lose can be muscle, and 2/3 can return in one year as fat.[1][2]
- Light, refreshing, easy to drink - even when you have no appetite.
- No sugar. No artificial junk. 3rd party tested.
- The 3 most-studied ingredients for muscle preservation - save over $80 vs buying separately.
- 90 day guarantee. Free gift.
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Grandma's sour lemonade
Preservation Protein™
Up to 40% of the weight you lose on a GLP-1 can be muscle, not fat. Preservation Protein delivers the three most studied ingredients on earth for muscle preservation (protein, creatine, and HMB) in one daily lemonade, so you can lose the weight and keep your strength.
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your health matters
It's time to be smart about your GLP use.
Here's what nobody is telling you.
40% could be
muscle loss.
Of the weight you lose on a GLP-1, up to 40% can be muscle, not fat. [1]
66% could
return as fat.
Within a year, people regain about two-thirds of the weight, & it comes back as fat. [2]
3-8% is already
lost to aging.
You lose 3 to 8% of your muscle every decade after 30, before weight loss even starts. [3]
And, here's the trap.
Stop the GLP-1 when you have less muscle, and the weight comes back fast, comes back mostly as fat, and cand be harder to lose than the first time. [4]
Protect your muscle now, or risk doing it all over again, but much harder.
A GLP comeback story
“I lost 45 pounds. I also lost my muscle, my energy, and the woman I recognized in the mirror.”
The weight melted off on a GLP and I thought I’d feel amazing. Instead I felt weak, my arms went soft, my face looked hollow, and I was wiped out by mid-afternoon.
Nobody told me that up to 40% of the weight you lose on a GLP is muscle, not fat,1 and that I’d lose all my energy right along with it. I was losing the muscle that holds your body up and runs your metabolism.
My husband couldn’t find anything that fixed it, so he built it: 25g protein, 5g creatine, and 3g HMB in one light, cold lemonade I could actually get down, even on the days nothing else sounded good.
I kept the weight off, and I slowly felt like me again. Lighter, but strong.
Denise’s personal experience; individual results vary. Denise is married to a TEMPERED co-founder. [1] Body-composition analyses of GLP-1 trials. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
Let customers speak for us
what's inside
Three of the most-studied muscle ingredients on earth. One formula.
Protein, creatine, and HMB, at the doses the research actually used.
25g Protein
The muscle you keep starts here
In a deficit, higher-protein dieters held onto about double the muscle. [5] It's the single biggest lever you have for keeping muscle.
5g Creatine
The most-studied molecule in fitness
In dozens of placebo-controlled trials, creatine plus training beat placebo plus training, for both lean muscle and strength. [6]
3g HMB
Used in hospitals to protect muscle
In a 10-day bed-rest study, the placebo group lost over 4 pounds of muscle; the HMB group kept nearly all of theirs. [7]
Essentials
The deficiencies nobody warns you about.
Eating less on a GLP-1 means running low on these. D3 for bone and muscle, B12 for energy, magnesium for recovery.
Three of the most-studied muscle ingredients on earth. One formula.
Grandma's sour lemonade
Easy to sip, even when you can't eat.
Light, cold, and refreshing, easy to sip on the go or at your desk. The kind of thing you can actually finish on a rough day, so you still get your protein in.
25g Protein • 5G Creatine • 3G HMB
Six supplements' worth, for less.
Lose the weight.
Keep your strength.
Less than $3/day on subscription, for protein, creatine, and HMB in one drink, not three.
Get StartedQuestions, answered
Everything you're wondering, before you try it
Will this actually help me keep my muscle on a GLP?
That's exactly why it exists. On a GLP, up to 40% of the weight you lose can be muscle, not fat. Preservation Protein™ delivers the three most-studied ingredients for holding onto muscle in a deficit — 25g protein, 5g creatine, and 3g HMB — in one drink, to help you protect your strength while you lose the weight.
What's HMB, and why do I even need it?
HMB is the reason this isn't just another protein. It's a compound your body makes from the amino acid leucine that, in research, helps slow muscle breakdown, and it's the ingredient hospitals and clinicians use to help people preserve muscle. You can't get a meaningful dose from food, and almost no drink has it. We pair it with creatine, the most-studied supplement in fitness, so you're getting the two ingredients most protein shakes leave out.
I have no appetite and some nausea. Will I actually be able to drink it?
This is exactly who we built it for. It's a light, cold, refreshing sour lemonade, not a thick shake, in a small glass of water. Most people find it easy to get down on the days nothing else sounds good, which is the whole point of a drink instead of another heavy meal.
Can I take it while I'm on a GLP-1 medication?
It's a food-based drink, not a medication, and it's built specifically for people on a GLP. That said, always check with your doctor before adding any supplement while on a prescription, especially a GLP-1.
What does it taste like?
A light, refreshing sour lemonade — Grandma's Sour Lemonade. Cold, easy to drink, even when your appetite is low.
How do I use it?
One serving a day, mixed into cold water. That's it.
Is every batch third-party tested?
Yes. Every batch is third-party lab tested for purity and potency, so what's on the label is what's in your glass.
Is there really a 90-day money-back guarantee?
Really. Try it for a full 90 days. If you're not happy with how you feel, we'll refund every penny — no hoops.
How long should I stay on it?
Keeping muscle works as long as you're supporting it, so most people stay on it through their GLP journey. Subscribe and save, and cancel anytime.
References & disclaimers
Up-to-40% figure: body-composition analyses of GLP-1 trials. HMB muscle-preservation research: Deutz et al., Clinical Nutrition, 2013. Research describes the individual ingredients, not this finished product. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Talk to your doctor before starting any supplement, especially while on a GLP-1 medication.
- Impact of semaglutide on body composition (STEP 1 exploratory analysis); review of muscle mass and GLP-1 receptor agonists. PMC8089287·Circulation 2024
- Weight regain after discontinuation of GLP-1 receptor agonists, up to two-thirds within a year. Rebound or Retention meta-analysis (PMC)
- Sarcopenia, age-related muscle loss of roughly 3 to 8% per decade after 30. Cleveland Clinic
- After stopping a GLP-1, regain is compounded by a reduced resting metabolic rate (adaptive thermogenesis, which can persist for years) and the loss of metabolically active muscle. Weight maintenance after GLP-1 discontinuation (ScienceDirect)·Regain meta-analysis (PMC)
- Higher protein intake preserves lean mass during energy restriction. PubMed 17299116·AJCN
- Creatine plus resistance training vs placebo: greater strength (meta-analysis of 49 studies) and greater lean mass (1.1 to 1.4 kg). Strength meta-analysis (Nutrients 2025)·Lean-mass meta-analysis (PMC8229907)
- HMB and lean mass during 10 days of bed rest; HMB in clinical and medical nutrition for muscle preservation in older adults (3g dose). Bed-rest study (PubMed 23514626)·3g HMB oral nutrition RCT, pre-frail older adults