Ironman Aid Station Strategy: What to Grab and What to Skip

Why a Plan Beats Grabbing Whatever’s There

Ironman and 70.3 aid stations are stocked with a genuinely wide mix of products — water, sports drink, cola, gels, fruit, salt tablets, sponges — and it’s tempting to just grab whatever’s within reach as you go past. The problem is that stacking random products on top of your planned nutrition is one of the most common ways athletes end up with GI distress late in a race: too much sugar, too much fibre from fruit, or fluid volumes that don’t match what you’ve actually trained your gut to handle. A simple station-by-station plan avoids this without slowing you down.

What to Actually Grab

Water — your default at almost every station, used to wash down gels or simply to drink to thirst alongside your planned carb intake
Sports drink — useful if it matches (or is close to) the carb mix you’ve trained with; check the official race nutrition partner in advance so you know what’s actually on course
Cola (flat, later in the race) — a well-tolerated source of quick sugar and caffeine that many athletes reach for in the second half of a marathon leg when gels start to feel unappealing
Ice — down your kit or in a hat rather than eaten, for cooling on a hot course; doesn’t count against your fuelling plan at all

What to Skip or Use Sparingly

Fresh fruit (banana, orange segments) — fine for most athletes in small amounts, but the fibre content can trigger bloating if you’re already fuelling heavily with gels; treat it as a garnish, not a meal
Multiple different sports-drink or gel brands stacked together — mixing unfamiliar products mid-race is exactly the scenario your gut-training sessions were meant to prevent
Sponges and misting stations for drinking — brilliant for cooling, not a substitute for your actual hydration plan

Building Your Station-by-Station Plan

Work out roughly how far apart aid stations are on your specific race (this varies a lot between events — check the athlete guide, not just an assumption from a different race). Map your planned carb and fluid intake onto that spacing before race day, deciding in advance which stations get a gel, which get sports drink, and which are just a water top-up. This is exactly what to rehearse in a session like our Ironman brick with GI stress test — practise the actual station spacing and product mix, not just total daily intake.

Special Needs Bags

Use your special needs bag (where the race offers one) for anything you can’t rely on standard aid stations to provide — a specific gel flavour you know works, salt tablets at your own dosage, or a backup pair of socks if wet feet have been an issue in training. Don’t overload it; a bag stuffed with ten different items usually means fumbling through it at the exact point in the race you’re least equipped to make good decisions.

Quick Reference

Plan your station-by-station intake before race day, matched to your actual gut training
Check the official on-course nutrition brand in advance so nothing on the day is a surprise
Use fruit and unfamiliar products sparingly, not as a substitute for your tested plan
Keep special needs bags simple — a handful of specific, reliable items beats a long list