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Food is part of the training plan

Carbohydrate, protein, hydration and meal timing for active people. Sports nutrition that works with real food, normal budgets and busy schedules.

What this lane covers

Fuel first, supplements a distant second

The supplement aisle would have you believe performance comes in a tub. Mostly it doesn't. The athletes who recover fastest and train hardest tend to have quite boring diets: enough total food, enough carbohydrate around hard sessions, protein spread through the day and plenty of water.

The catch is that "eat enough" is easy to say and harder to do than it sounds. A lot of active people, particularly those trying to lose weight at the same time, under-eat without realising it. They feel flat in sessions, pick up every cold going, sleep badly and blame their training plan.

This lane covers the practical side. What to eat before a morning session when you can't face breakfast. How much protein is actually useful. How to drink enough without overdoing it. When a sports drink earns its place and when water is fine.

Our guides lean on position statements from the American College of Sports Medicine and the International Society of Sports Nutrition, plus the research behind them. We also say how strong the evidence is. When something is a sensible guess rather than proven, you'll hear it from us.

One thing we won't do is sell you a meal plan or a supplement stack. Food advice has to fit your culture, budget and the kitchen you actually have, so we focus on principles you can apply to whatever you already eat.

Core ideas

The nutrition basics that matter

Get these right and you've captured most of the benefit. The rest is fine-tuning.

Energy availability

Eat enough to cover training and normal life. Long-term under-fuelling harms hormones, bones and performance.

Carbohydrate is fuel

Muscles run on stored glycogen during hard or long exercise. Match carbohydrate to how hard you're training that day.

Protein, spread out

Around 1.4 to 2.0 g per kg of body weight a day, split over three to five meals, supports repair and adaptation.

Timing helps at the edges

Meal timing matters most if you train twice a day or compete. For most people the daily total matters more.

Drink to thirst, mostly

For sessions under an hour, drinking when thirsty is enough. Longer and hotter sessions need a plan and some salt.

Food before pills

A few supplements have good evidence, caffeine and creatine among them. Most of the rest have little or none.

Getting started

A fuelling routine you'll actually stick to

Most nutrition advice fails because it asks people to change everything at once. Try building a routine in layers instead, one habit every week or two.

Layer one: three proper meals. Before worrying about timing or supplements, make sure you're eating breakfast, lunch and dinner on training days, each with a protein source and some carbohydrate. Skipped meals are the most common reason active people feel flat.

Layer two: a pre-session snack you like. Find one or two snacks that sit well in your stomach 30 to 90 minutes before training. Bananas, toast with honey, a yoghurt, a handful of dates. Keep them where you'll see them.

Bowl of chickpeas, tomatoes and greens on a dark table
Batch-cooked bowls like this make post-training meals easy on busy days.

Layer three: protein at every meal. Aim for a palm-sized portion or more at each meal: eggs, yoghurt, meat, fish, tofu, lentils, beans. If one meal is usually light on protein (breakfast, for most people), fix that one first.

Layer four: a water bottle habit. Carry one. Check your urine colour now and then. Pale straw is about right. Dark yellow on most days means you're not drinking enough.

Layer five: plan your big days. Long sessions, double-session days and match days are where timing and carbohydrate intake make a real difference. Plan those days the night before, using our fuelling guide.

That's it. Once these habits are automatic, you've done more for your performance than most supplements ever will.

Myth check

Nutrition myths

Ideas that get repeated in changing rooms and comment sections, and what the research says about them.

MythCarbs make you fat.

What the evidence saysWeight gain comes from eating more energy than you use over time, whatever the source. For active people, carbohydrate is the main fuel for hard training. Cutting it usually hurts performance.

MythYou must have a protein shake within 30 minutes of training.

What the evidence saysTotal daily protein matters far more than the exact timing. A normal meal with protein in the two hours after training does the job.

MythSweating a lot means you need sports drinks all the time.

What the evidence saysFor most sessions under an hour, water is fine. Sports drinks help in long or very hot sessions where you also need carbohydrate and sodium.

MythTraining fasted burns more fat, so it's better for weight loss.

What the evidence saysFasted sessions do burn a higher share of fat during the session, but studies comparing fasted and fed training find similar fat loss when total intake is matched. Pick whatever you can stick to.

Words you'll meet

Nutrition glossary

Plain-English definitions for the terms that come up across this lane.

Glycogen
The stored form of carbohydrate in muscles and liver. Your main fuel for hard or long exercise.
Energy availability
The energy left for normal body functions after training is paid for. Too low for too long causes health problems.
RED-S
Relative Energy Deficiency in Sport. A syndrome caused by long-term under-fuelling, affecting hormones, bones, immunity and performance.
Carb loading
Eating extra carbohydrate in the 36 to 48 hours before events longer than about 90 minutes to top up glycogen stores.
Leucine
An amino acid that helps switch on muscle protein synthesis. Found in high amounts in dairy, meat, eggs and soy.
Electrolytes
Minerals such as sodium and potassium that you lose in sweat. Sodium matters most during long sessions.
Hyponatraemia
Dangerously low blood sodium, usually from drinking far more plain water than you sweat during long events.
Gut training
Practising eating and drinking during exercise so your stomach copes better on race day.
Coming up

Next in Nutrition

Guides we are researching and writing now. Subscribe below and you will get each one the week it goes live.

  • How much protein do you actually need? A sport-by-sport guideIn the works
  • Hydration for athletes: how much to drink and when to add saltIn the works
  • Creatine: what it does, who it helps and is it safe?In the works
  • Eating for recovery on rest daysIn the works
  • Caffeine and performance: dose, timing and side effectsIn the works
Questions

Nutrition FAQ

Do I need a protein shake after training?

No. A shake is just a convenient way to get protein. A meal with 20 to 40 g of protein within a couple of hours of training does the same job. Use a shake if it makes life easier.

Is it OK to train on an empty stomach?

For easy sessions under an hour, plenty of people feel fine. For hard intervals, long sessions or competition you'll usually perform better with some carbohydrate beforehand.

Are sports drinks better than water?

For most sessions under 60 to 90 minutes, water is enough. Sports drinks help in longer or very hot sessions, where you need carbohydrate and sodium as well as fluid.

Can I lose weight and improve performance at the same time?

Yes, with a small calorie deficit and plenty of protein. Big deficits usually cost performance and recovery. Keep most of your carbohydrate around your hardest sessions.

Should athletes take vitamin supplements?

Not as a default. A varied diet covers most needs. Vitamin D (especially in winter or for indoor athletes) and iron (if a blood test shows you're low) are the common exceptions. Get tested rather than guessing.