For years, carbohydrates have been misunderstood.
Many new athletes are told:
“Cut carbs to get lean.”
“Carbs make you gain weight.”
“You’ll be faster if you eat less.”
But when you start training and racing, your body is asking for something different.
Carbohydrates are not the enemy. They are your training fuel.
The goal is not to eat unlimited carbs. The goal is to understand which carbohydrates, when to eat them, and how they help you perform.
Your body is not a machine that runs on motivation — it runs on fuel
When you train, your body uses stored carbohydrate called glycogen.
Glycogen is stored in your muscles and liver and becomes your main source of energy when exercise intensity increases.
This is why runners, cyclists, swimmers, triathletes and team sport athletes rely heavily on carbohydrates.
Without enough carbohydrate:
- Sessions feel harder
- Pace drops
- Recovery slows
- You feel more fatigued
- Training consistency becomes harder
The problem is many athletes are trying to train like an athlete while eating like they are not training.
But aren’t carbs what make you gain fat?
This is one of the biggest myths.
Eating carbohydrates does not automatically lead to fat gain.
When you eat carbohydrates, your body uses them for:
- Immediate energy
- Refilling glycogen stores
- Supporting training adaptations
- Recovery after exercise
You may notice your weight changes slightly when increasing carbohydrates because glycogen holds water in your muscles.
That is not fat gain.
In fact, well-fuelled muscles are exactly what you want as an athlete.
A fuller glycogen store means:
- Better training sessions
- More energy
- Improved ability to hit higher intensities
Being lighter does not always mean being faster.
Being well-fuelled allows you to train consistently — and consistency is what creates performance.
Quality carbohydrates: not all carbs are the same
When people say “carbs”, they often put everything into the same category.
But there is a big difference between:
A carbohydrate source designed mainly for quick energy
and
A carbohydrate-rich whole food that provides energy alongside nutrients.
Both have a place in sport — but they serve different purposes.
Simple carbohydrates vs complex carbohydrates
Simple carbohydrates
Simple carbs are usually broken down quickly and can provide rapid energy.
Examples:
- Soft drinks
- Sweets
- Sugar
- Some gels and sports drinks
These can be useful during intense exercise because your body needs carbohydrate quickly.
For example:
- A marathon runner taking fuel during a race
- A cyclist during a long event
- An athlete needing fast energy between sessions
However, they are not usually the foundation of an everyday diet.
A bottle of fizzy drink and a portion of cassava may both contain carbohydrate — but they provide very different nutritional value.
Complex, whole-food carbohydrates
Whole-food carbohydrate sources come from plants and often contain additional nutrients.
Examples:
- Cassava
- Plantain
- Potatoes
- Rice
- Oats
- Wholegrain bread
- Fruit
These foods provide carbohydrate alongside:
- Fibre
- Vitamins
- Minerals
- Plant compounds
They help create a stronger foundation for everyday fuelling.
Why cassava and plantain?
Cassava and plantain are traditional carbohydrate staples used across many cultures.
They are not “magic” foods.
They are simply excellent examples of quality carbohydrate sources that can help athletes build more variety into their diets.
Cassava
Cassava is a naturally gluten-free root vegetable rich in carbohydrate.
For athletes, this means:
- Reliable energy source
- Easy way to increase carbohydrate intake
- Familiar whole-food foundation
Plantain
Plantain is a starchy fruit used in many cuisines around the world.
It provides:
- Carbohydrates for energy
- Potassium to support normal muscle function
- Magnesium
- Vitamin B6
- Fibre
Together, cassava and plantain create a carbohydrate-first foundation for fuelling.
What is carb diversity — and why should you care?
Carb diversity means not relying on only one carbohydrate source.
Instead of thinking:
“I only eat oats.”
“I only eat protein.”
“I only use gels on race day.”
Think:
“I have a toolkit of carbohydrates that support different moments.”
Your toolkit might include:
Everyday training
Rice, potatoes, oats, pasta, cassava, plantain
Before training
Banana, toast, oats, RED-SCUE bar
During longer sessions
Sports drinks, gels, carbohydrate bars
Recovery
Carbohydrate + protein after training
Different situations require different fuel.
Why beginners especially should care
When you first start training, it is tempting to think:
“I need to lose weight first.”
“I need to be stricter.”
“I need to cut carbs.”
But your biggest performance improvement often comes from learning how to fuel properly.
Your body needs energy to:
- Adapt to training
- Build fitness
- Recover
- Stay healthy
- Show up consistently
The strongest athletes are not the ones who eat the least.
They are the ones who understand how to fuel the work they are asking their body to do.
Start simple: your first athlete fuelling rules
You do not need to completely change your diet overnight.
Start with:
1. Eat carbohydrates every day
Training days and rest days.
2. Put carbohydrates around your sessions
Before = fuel the work
After = recover and rebuild
3. Practise your race fuel in training
Your gut is trainable.
4. Build your carbohydrate toolkit
Find the foods that make you feel energised, comfortable and confident.
The takeaway
Carbohydrates are not what make athletes slow.
Under-fuelling makes athletes feel slow.
Quality carbohydrates from whole-food sources like cassava, plantain, potatoes, rice and oats give your body the energy it needs to train, recover and perform.
You don’t need to fear carbs.
You need to learn how to use them.
Performance starts with fuelling.
