The pasta-dinner-the-night-before tradition is half right. Carbs are good. The way most runners execute it — a heaping bowl of creamy alfredo with garlic bread and red wine at 9 PM — is exactly wrong. Here is the version that works.

The one-sentence answer

Roughly 2 grams of carbohydrate per kilogram of bodyweight at dinner, eaten by 6 or 7 PM, from low-fat low-fiber sources you have already eaten this training block. Tomato or simple sauces beat creamy ones.

Why a single pasta dinner is not carb loading

Real carb loading happens across the 36–72 hours before the gun, not in one meal — see our 3-day carb-loading protocol for the gram-per-kilogram targets that actually fill muscle glycogen. The night-before dinner is a top-up, not the main event. Treating it as the load leads to overeating, GI distress, and a 4 AM bathroom emergency.

Three dinner templates

Pasta with tomato sauce (~130 g carb): 200 g dry pasta, marinara sauce (no cream), grilled chicken breast, side of plain bread. Skip the salad and the garlic.

Rice and salmon (~140 g carb): 2 cups white rice, 150 g teriyaki salmon (low oil), small side of cooked carrots. No raw veg.

Risotto and zucchini (~130 g carb): Plain risotto with a small portion of pan-cooked zucchini and a thin parmesan dust.

Foods to skip the night before

  • Beans, lentils, chickpeas — high fiber, ferment overnight
  • Cruciferous veg (broccoli, cauliflower, brussels) — same reason
  • Heavy cream sauces, deep-fried anything, very fatty meat
  • Raw salads — slow gastric transit, high insoluble fiber
  • Spicy food — gut irritation lingers into race morning
  • Alcohol — even one beer disrupts sleep and dehydrates
  • Anything you have never eaten before a long run

Timing

Eat by 6 PM for a 7 AM gun. That leaves 13 hours for the gut to clear, with a final bathroom trip at bedtime. Eating at 9 PM compresses the clearance window and pushes you into the start corral with food still in the stomach.

What to drink

Water and an electrolyte beverage. Aim for 500–800 mL across dinner and the evening. Skip alcohol — even one beer reduces overnight glycogen synthesis and disrupts deep sleep. The sodium in your electrolyte drink helps you retain the fluid you are loading; see our sodium and electrolytes guide for the why.

Personalisation

Low-FODMAP runners: swap pasta for white rice or sushi rice, swap tomato sauce for a simple olive-oil-and-parmesan dressing. Full protocol in our low-FODMAP fueling guide. Vegans: pasta + tomato + tofu + a small portion of nutritional yeast works fine; skip the beans and broccoli.

Then it is sleep and tomorrow's breakfast

Once dinner is done, the next move is the race-morning breakfast — 2–4 hours before the gun, 1–4 g/kg of carbs. The two meals together set you up to run the race you trained for.

Frequently asked questions

Can I eat sushi? Cooked sushi or rolls without raw fish, mayo, or spicy sauces — fine. Sashimi-heavy meals — skip.

Can I have a glass of wine? One small glass with dinner is not the end of the world, but the marginal cost — sleep disruption, dehydration, glycogen — exceeds the marginal benefit.

What if I am not hungry? Pre-race nerves are normal. Drink half the carbs as juice or sports drink, eat the rest in smaller portions over 90 minutes.

Should I take a sleep aid? Only if you have used it before. Melatonin in low dose (0.3–1 mg) is the lowest-risk option for sleep-anxious runners; never combine with anything new.