Why a Protein Shake Should Be Your Post-Surf Go-To

Published: September 14, 2026 | By the SurferFood Editorial Team

Drink 20 to 40 grams of protein when you cannot sit down to a plate. That is the go-to, not because a shake beats food, but because a shake is food you will finish. The International Society of Sports Nutrition's 2017 protein position stand says a general serving is 0.25 g of high-quality protein per kg, or an absolute dose of 20 to 40 grams [1]. A 160-pound surfer at 0.25 g per kg needs about 18 grams as a minimum pulse. Most ready shakes land at 25 to 35 grams, which is the useful band. Then eat carbohydrate. The shake starts the clock. The meal finishes the job.

Key takeaways

• ISSN's 2017 protein stand lists 20 to 40 grams, or about 0.25 g per kg, as a general serving to support muscle protein synthesis [1].
• Daily protein for most exercising people still sits around 1.4 to 2.0 g per kg per day, so one shake does not close the whole day [1].
• A shake wins when the alternative is nothing. A bowl still wins when you can cook. See our recovery meal ranking.
• Add fruit or oats if the next session is the same day. Protein alone does not refill glycogen [2].
• If we link a blender or powder on the gear page, those links may be affiliate links. We say so there.

How much protein should be in a post-surf shake?

Land in ISSN's 20 to 40 gram serving, or about 0.25 g per kg [1]. For most surfers that is one scoop of a typical whey or a well-filled smoothie with yogurt and milk. More than 40 grams in one bottle is not dangerous for a healthy person. It is just more than you need for that pulse. Save the rest for dinner.

Daily intake still matters more than one drink. ISSN's range for most exercising people is 1.4 to 2.0 g per kg per day [1]. A 73 kg surfer at 1.6 g per kg needs about 117 grams across the whole day. The shake is one brick, not the house.

Should the shake include carbohydrate?

Yes if you have another session, or if the paddle was long. ISSN's nutrient-timing stand treats carbohydrate as the priority when glycogen must come back fast [2]. Our green recovery smoothie lists 30 g protein and 48 g carbohydrate. That is a recovery starter, not dessert for its own sake.

If dinner is 30 minutes away and the day is done, a simpler protein drink plus a rice bowl is cleaner. Do not fear fruit sugar after a two-hour paddle. That is one of the few times a quick carb is the point.

Is whey better than a food smoothie?

Whey is fast and easy to dose. A food smoothie can match the protein if you measure it. ISSN does not require a powder. It requires a high-quality protein serving [1]. Use powder when the cooler is empty. Use yogurt, milk, or soy milk when that is what you have. The go-to is the serving, not the brand.

If you buy a blender or a tub, read the notice on our gear page. That page uses affiliate links and says so. We do not hide that. A homemade shake with supermarket milk is still a valid go-to.

When is a shake the wrong go-to?

When you can eat a plate within about 30 minutes and you are ravenous. Chewing a chicken rice bowl brings more carbohydrate and micronutrients than most bottles. When you have kidney disease or a clinician has limited your protein, do not self-dose a 40 gram shake. That is a medical conversation, not a blog rule.

Also skip a huge shake as your pre-surf meal if it sits heavy. The iced coffee version is built as a dawn-patrol drink, not as the only post-surf plan. After the session, bias recovery: protein plus carbs, less caffeine if you already had two coffees.

This article is educational and is not medical advice. It is not a treatment plan. If you have a medical condition or take medicines that change fluid, salt, or food needs, talk with a qualified clinician.

Frequently asked questions

Why is a protein shake a good post-surf drink?

It is fast, measurable, and easy to finish when you are sandy. ISSN's 2017 protein stand supports a 20 to 40 gram serving around exercise. A shake you drink in the lot starts recovery. A plate you skip does not.

How much protein should I drink after surfing?

Most surfers can use ISSN's general serving of 20 to 40 grams, or about 0.25 grams per kilogram. A 160-pound surfer lands near 18 to 25 grams as a starting pulse. One shake does not replace the rest of the day's protein.

Should I add carbs to a post-surf protein shake?

Add carbohydrate if the session was long or you will paddle again. Fruit, oats, or juice cover that. If dinner is immediate and the day is done, protein plus a rice bowl is enough. Glycogen refill still needs starch, not only powder.

Is a protein shake better than a recovery meal?

No. A shake is better than nothing and faster than most plates. A complete meal still wins for carbs, micronutrients, and staying full. Use the shake as the go-to starter when you leave the lot, then eat a real plate when you can.

Can I use plant protein after a surf session?

Yes if the serving still hits about 20 to 40 grams and you digest it. Soy is a complete protein. Pea and rice blends can work when the label dose is honest. The target is the amino acids, not the animal.

When should I skip a protein shake after surfing?

Skip it if a clinician has limited your protein. Skip a huge shake if it wrecks your stomach. Skip it as your only food after a two-hour paddle if you can eat a plate. The go-to has a stop rule.

Sources

1. [1] Jager et al., "ISSN Position Stand: Protein and Exercise," Journal of the International Society of Sports Nutrition, 2017 - https://pmc.ncbi.nlm.nih.gov/articles/PMC5477153/
2. [2] Kerksick et al., "ISSN Position Stand: Nutrient Timing," Journal of the International Society of Sports Nutrition, 2017 - https://pmc.ncbi.nlm.nih.gov/articles/PMC5596471/
3. [3] SurferFood, Green Recovery Smoothie recipe with listed macros - https://surferfood.com/recipe-green-recovery-smoothie