Starting a GLP-1 is one of the bigger changes you can make to how your body works day to day. The people who have the smoothest experience tend to have one thing in common: they set themselves up before the first dose, rather than scrambling to react once side effects and a smaller appetite arrive. Here's how to prepare.
Build the protein habit now — while eating is still easy
Within days of starting, your appetite can drop sharply. That's the point of the medication, but it also makes it hard to hit the protein your body needs to hold onto muscle. The fix is to make protein a habit before your appetite falls, so it's automatic when eating gets harder. Aim to anchor every meal around a protein source, and get comfortable with a protein shake as a reliable fallback — Proco's Whey Protein Isolate gives you 23g per scoop for the days a full meal feels like too much.
Sort your hydration and electrolytes
Eating and drinking less overall makes mild dehydration common, and that alone can drive fatigue and headaches. Get into a habit of steady water through the day and keep electrolytes in mind, especially early on.
Start moving your muscles
Because a share of GLP-1 weight loss can come from muscle, the resistance training you do matters — and starting before or right as you begin means you're protecting muscle from day one rather than trying to claw it back later. Two to four short sessions a week covering the major muscle groups is plenty; bands or bodyweight count.
Start from a good nutritional baseline
When you're about to eat a lot less, it helps to not begin with gaps. Covering the foundational nutrients — vitamin D, magnesium and omega-3s — means your smaller diet has less ground to make up. These support everyday energy, sleep and overall wellbeing through a period when your intake is dropping.
Know what's coming
Nausea, constipation and some fatigue are common in the first weeks and after dose increases, and they usually ease as you adjust. Knowing the simple ways to manage each one ahead of time takes a lot of the stress out of it — we walk through them in our guide to GLP-1 side effects.
The simple version
Set the protein habit, sort hydration, start resistance training, and begin from a solid nutrient baseline. Do those four things and you'll feel more like yourself through the transition — and protect the muscle and energy you'll want to keep.
If you'd rather start with the essentials in one place, our Pre-Start Kit brings together the foundational supplements to set you up from your very first dose — each dosed to the range used in research and third-party tested every batch.
This article is for general education and isn't medical advice. Supplements support your nutrition and wellbeing — they don't diagnose, treat, cure, or prevent any disease. Always follow the guidance of the clinician prescribing your medication.