7 nutrition mistakes that cost you watts

Or how to innocently sabotage your ride…

We’ve all done it. A fasted start “because it burns more fat,” a gel swallowed at the 20th km “to prevent hitting the wall,” or a 4-cheese pizza the night before a sportive “to fuel up”… On paper, it might seem smart. In the legs? Not so much. Nutrition is a bit like adjusting your derailleurs: one small deviation and everything goes wrong. So here are the 7 dietary mistakes that cyclists – even the most seasoned – still make too often. All with a touch of humor, but also good advice to stop riding beside yourselves… and your bottles.

By Jeff Tatard – Photos: All rights reserved

1. Riding fasted to “burn fat”

What you think you’re doing: engaging ultimate fat-burning mode.

What you’re actually doing: burning through your glycogen stores, wrecking your watts, and turning your ride into a funeral march.

Fasting has its place… in very specific strategies. But going out fasted without supervision is often riding on a knife’s edge. You optimize neither your endurance nor your recovery. And we’re not even talking about the bad mood halfway through.

3bikes advice: a light, well-balanced breakfast (complex carbohydrates + a little protein) remains your best fuel.

2. The bar at km 10 (when everything is going well)

“I eat before I’m hungry”… Yes, that’s a good habit. But gorging yourself right at the start when the engine is barely warm? Not necessary.

Eating too much too early overloads the stomach, disrupts digestion, and can even cause stomach aches.

Result: your watts end up in your intestines instead of your pedals.

3bikes advice: wait 45 minutes to 1 hour before the first solid refueling. Start with water or a light energy drink.

3. The magic gel at the 70th kilometer (uphill, of course)

Nothing beats a gel swallowed with forceps in the middle of a climb to increase… indigestion. A gel is a shot of quick energy, but it must be handled with care.

Taken without water or too late, it can do more harm than good. Blood sugar spikes, reflux, the post-peak slump… it’s not doping, but almost like an emotional roller coaster.

3bikes advice : test your gels in training, take them with water, and anticipate: a gel is for before the wall, not in it.

4. The “all-you-can-eat pasta + chocolate cake” combo the night before a race

The pasta party, that great pre-race cycling ritual. Except that by trying to charge the batteries too much, you end up flooding the engine. Too many carbohydrates at once = slow digestion, restless sleep, and sometimes… a little digestive detour on the morning of the start.

3bikes advice: the night before, keep it simple. Carbohydrates, yes, but in controlled amounts, and without overdoing fats or very complex slow sugars. And most importantly, eat early.

5. The water bottle… empty halfway through the ride

Hydration? Oh yes, the thing we forget when it’s cool. Except that water, it’s not a comfort accessory. It’s what allows your muscles to function, your cells to breathe, and your brain not to confuse the road with the sidewalk.

3bikes advice: drink from the first 15 minutes, then every 10-15 minutes. Even if you’re not thirsty. A good strategy: 500 to 750 ml per hour depending on the heat and intensity.

6. The apocalypse energy drink

Too sweet, too concentrated, too acidic… the improvised homemade energy drink like soda + lemon juice, we’ve all seen that. Except that osmolarity (the capacity for intestinal absorption) isn’t just a complicated word. It’s what determines whether your drink hydrates you or dehydrates you.

3bikes advice: prefer a balanced isotonic drink, with 6-8% carbohydrates, a little sodium, and possibly electrolytes. Or test it well before the big day.