Surfing on Zepbound: Paddling Strength, Cold Water, and Dawn Patrol

Surfing asks a lot of your body. Paddling out through broken waves takes shoulder, back, and core strength. Cold water drains energy. Dawn sessions often start before anyone has eaten, and a good swell can keep you in the water far longer than you planned.

If you take Zepbound or compounded tirzepatide, you may notice paddling feels harder or you get cold sooner than you used to. A few changes to how you eat, train, and gear up can help you keep surfing strong.

Why paddling can feel harder

In an analysis of body composition from SURMOUNT-1, the main trial behind Zepbound’s approval for weight management, participants lost about 21 percent of their body weight, and approximately 75 percent of what they lost was fat while 25 percent was lean tissue. The same proportional split was seen in the placebo group, who lost less weight overall.

That ratio is not unusual for weight loss. But when the total loss is large, a quarter of it is a meaningful amount of lean tissue, which includes muscle. For a surfer, the shoulders and back that power every paddle are part of what is at stake.

Protect your paddling muscles

Eat protein at every meal, and start with it while your appetite lasts.

Keep strength training a few days a week, with pulling exercises, push-ups, and core work that carry over to paddling.

Paddle regularly, even on small days, to keep the specific endurance.

Our guide on getting the most out of your GLP-1 treatment covers why protein and resistance exercise matter.

Fuel for dawn patrol

Paddling out on an empty stomach is a common reason sessions fade early. Eat something small before you leave, even if you are not hungry: a banana with peanut butter, yogurt, a small protein shake, or a slice of toast. Keep a snack and water in the car for afterward, and eat a real meal with protein once you are out of the water.

Cold water and feeling cold

Feeling cold more easily is one of the signs that you may not be eating enough. Watch for persistent fatigue, feeling cold, hair shedding, dizziness when you stand, losing strength, and losing weight faster than you and your provider intended. If you notice them, talk to your provider.

Even when you are eating enough, less body fat can mean less insulation. You may need a thicker wetsuit, boots, or a hood earlier in the season than you used to, and shorter sessions on cold days.

A wetsuit that fits

As you lose weight, a wetsuit that once fit snugly can start to sag at the back, chest, and legs. A loose suit lets cold water flush through every time you duck dive. If yours has gone baggy, it may be time for a smaller size, even if the old one is in good shape.

Board pressure and injection sites

Lying on a board presses on your abdomen for long stretches, and a tight wetsuit presses on your thighs and arms. If an injection site is still tender, choose a different site for your next dose, and rotate as usual. Our guide on GLP-1 injection sites covers each option.

Starting Zepbound in surf season

Side effects tend to be strongest in the first weeks and after each dose increase, and many people notice them most in the day or two after an injection. Nausea in the lineup, rocking on a swell, is no fun. Plan your biggest sessions away from those days when you can, and ask your provider to hold an increase before a surf trip. Our guide on the starting dose of tirzepatide covers what the first weeks usually look like.

Sun, salt, and hydration

Long sessions in sun and salt water can dehydrate you without much warning, especially if you have had nausea or diarrhea. Drink water before you paddle out and again when you come in. Never leave your medication in a car at the beach, where temperatures climb quickly, and follow the storage instructions that came with it.

Never surf alone

Fatigue and lightheadedness are risky in the water. Surf with a friend or where others are out, know your exits, and come in at the first sign of dizziness or unusual tiredness. Stand up slowly when you get back to your car.

Surf trips

On trips of a week or less, injecting before you leave can mean you carry nothing. On longer trips, follow your medication’s storage instructions, and plan meals around sessions, since surf towns do not always have food open at dawn.

Consider this scenario: a surfer on Zepbound keeps paddling out at sunrise on just a coffee, the way he always has. Over a few months his sessions get shorter, he struggles to catch waves he used to make easily, and he starts shivering within half an hour in a wetsuit that now hangs loose. Eating something before dawn sessions, adding protein and pulling exercises, telling his provider about the cold and fatigue, and getting a wetsuit that fits would very likely have him back to full sessions.

The short version

Surfing on Zepbound goes best when you protect your paddling strength with protein and resistance training, eat something before dawn sessions, and watch for signs of under-eating like feeling cold and fatigue. Get a wetsuit that fits as you lose weight, rotate injection sites away from tender spots, plan big sessions away from dose increases, drink water, and never surf alone.

If you want a provider who will help you keep your strength as well as lose weight, TrimRx includes ongoing provider access alongside treatment.

This information is for educational purposes and is not medical advice. Consult with a healthcare provider before starting any medication. Individual results may vary.