Serious about weight loss? So are we.

What nobody warns you about

The scale drops. So does a lot you didn't bargain for.

Rapid weight loss on very little food hits harder than the number on the scale:

• —You lose muscle with the fat — up to 40% of it — so you end up lighter but soft, weak and skinny-fat.
• —Your face and skin deflate first — the hollow, gaunt look people notice before anything else.
• —Protein becomes almost impossible — you're barely hungry, so you fall short on the one nutrient that helps protect muscle.
• —Energy, hair and mood dip as the nutrients in your food fall with your appetite.
• —The rebound is set in motion — lose muscle now and your metabolism slows, which is exactly what drives the weight back on after you stop.

Proco gives you the evidence-dosed essentials to protect against exactly this.

What we're here for

Lose the fat. Keep the muscle.

Up to 40% of the weight you lose on a GLP-1 can be muscle. Proco’s evidence-dosed essentials protect your muscle, heart and metabolism while you lose — every ingredient backed by human trials.

Where we're going

We start with supplements — and build the support around you.

Losing weight well is about more than what is in the bottle. Alongside the stack you get plain, cited guidance on protecting your muscle, heart and metabolism, the right routine for where you are, and a brand built to support you through the whole journey — not just sell you a tub. Proco is an evidence-first obesity & cardiometabolic health company: supplements are where we start.

GLP-1 Support

On a GLP-1 or weight-loss medication? Come out of it stronger.

GLP-1s and the new generation of weight-loss medications are a powerful tool, and the right supplements help you get the very best from them. Research shows up to 40% of weight lost on these medications can be muscle — so Proco's GLP-1 Support Stack is built to protect it. Four evidence-backed essentials in one: protein and creatine to defend and rebuild lean muscle, omega-3 for heart health, and magnesium to cover the nutrient gaps that come with eating less — all among the most researched compounds in human science. All backed by human trials.

The evidence is the product.

Every formula starts with peer-reviewed human trials — the gold standard. Exact ingredients, exact doses, transparently stated. No proprietary blends, no fillers. Every batch independently tested with a Certificate of Analysis, and every product page cites the studies behind it. You get to see exactly what you're taking, and exactly why.

Thinking about Ozempic, Wegovy or Mounjaro?

Start right — from your very first dose.

The people who keep their muscle (and keep the results) are the ones who set up before the appetite drops: protein dialled in, the right essentials on hand, and a simple plan for the weeks ahead. Walk in ready instead of playing catch-up. Get the free Pre-Start Guide — what to have in place before dose one, the mistakes that cost people their muscle, and the questions to ask your clinician.

Educational only — whether a weight-loss medication is right for you is a decision for you and your clinician.