Golf is the quiet dehydration sport: moderate exertion, no water break built into the round, and cool fall air that keeps the skin dry while the body loses fluid. A stone-aware golfer treats the round like a shift — a bottle in the bag at every tee box, a drink at every hole change, and a real fluid target for the front nine and back nine rather than a drink when thirsty. Walking and carrying adds to the loss; riding carts still need the same water, just less of it.
Course food and the turn stand are mostly the safe end of the scale:
| Food | Oxalate (mg) | Serving | Rating |
|---|---|---|---|
| Water, still | 0 mg | 1 glass | Safe |
| Sparkling water, plain | 0 mg | 1 can | Safe |
| Banana | 6 mg | 1 medium | Safe |
| Peanut butter sandwich | 13 mg | 1 sandwich | Safe |
| Apple, fresh | 2 mg | 1 medium | Safe |
Water is the round default — zero oxalate and the fluid the course never serves. The banana is the classic golf snack: easy in the bag, steady energy, and only 6 mg of oxalate. A peanut butter sandwich measures about 13 mg — fine in a portion and the protein that makes the turn a real fuel stop. The clubhouse beer is the treat after the round, with water alongside as the actual rehydration.
The post-round beer is part of golf culture, and it is fine in a serving — beer carries essentially no oxalate. The measured version is to rehydrate with water first and pace the beer, because the round has already drawn down the fluid ledger. One drink with a full glass of water is the pattern that turns the 19th hole into a reward rather than a second dehydration event.
Three habits cover most of the upside. Put a bottle in the bag at the first tee and drink at every hole change — the course gives you natural checkpoints, use them. Make the banana and a sandwich the turn fuel, with water as the drink. And finish the round with water before the clubhouse, so the 19th hole is a treat on top of a hydrated round, not the day's only fluid.
See how oxalate values are measured and verified on our data methodology page.