02/11/2025
𝐅𝐮𝐞𝐥𝐢𝐧𝐠 & 𝐒𝐮𝐩𝐩𝐥𝐞𝐦𝐞𝐧𝐭𝐬 𝐟𝐨𝐫 𝐚 𝐓𝐢𝐦𝐞-𝐓𝐫𝐢𝐚𝐥.
For cyclists preparing for a time trial, nutrition and targeted supplementation can meaningfully influence performance. The two key areas to focus on are carbohydrate availability and evidence-based performance supplements, used thoughtfully and according to the race demands.
𝐂𝐚𝐫𝐛𝐨𝐡𝐲𝐝𝐫𝐚𝐭𝐞𝐬 are the body’s primary fuel source for intense efforts like time trials, where power output is high and energy is mostly derived from glycogen. In the 24 hours leading into a TT, riders should prioritize carbohydrate intake to ensure muscle and liver glycogen stores are topped up. Recommended intake typically falls between 7–12 g/kg/day, depending on training load, and race duration. Shorter TTs (under ~30 minutes) don’t necessarily require full “super-compensation,” especially if weight and climbing ability are important factors, as excess glycogen also stores water and can slightly increase body mass. If athletes come into the TT after a demanding stage, higher carbohydrate intake and quick access sugars post-ride become especially important for rapid replenishment.
On race morning, the goal is to restore liver glycogen lost overnight. A pre-race meal, ideally 1–4 g/kg carbohydrates in the hours before start, should be built around easily digestible, low-fibre, low-fat options like white rice, oats, toast, fruit, and honey. Some athletes may prefer to avoid eating in the last 60–90 minutes before racing to reduce the risk of rebound hypoglycemia; instead, small carbohydrate intake during warm-up (or even a brief mouth rinse) can help maintain energy and alertness for TTs under an hour.
𝐒𝐮𝐩𝐩𝐥𝐞𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧 can further support performance when used appropriately. Caffeine (around 1.5–3 mg/kg taken ~45 minutes pre-race) can reduce perceived exertion and improve focus. Sodium bicarbonate (~0.3 g/kg taken 2–3 hours pre-race) may help buffer acid buildup during intense efforts, though some athletes struggle with GI discomfort—testing this strategy in training is essential. Nitrates, often from concentrated beetroot juice, can be beneficial for sub-hour efforts by improving oxygen efficiency, though their impact appears less pronounced in elite riders.
Together, consistent fueling in the day before, a smart pre-race carbohydrate plan, and selective use of proven supplements can set up a cyclist for a strong TT performance without overcomplicating the process.
If you'd like support planning your training, feel free to reach out for a consultation at 𝗱𝗶𝗺𝗼𝘀𝘁𝗵𝗲𝗻𝗶𝘀.𝗴𝗮𝗹𝗹𝗶𝘀@𝗴𝗺𝗮𝗶𝗹.𝗰𝗼𝗺
I coach athletes remotely all over the world, and this is a great time to build toward next season.
Whether you're considering coaching or want help refining your own training approach, I am here to help you develop the tools to plan, execute, and adjust your program for long-term progress.
D,G