Carbohydrates: Essential Fuel For Your Training
STEEL Team
November 12, 2026
Carbohydrates are often one of the first things people cut back on when trying to lose weight. But if you train regularly, especially if your routine includes strength training, running, or high-intensity workouts, carbohydrates are about more than just calories.
They are an important source of energy that helps your body sustain training intensity, recover effectively, and prepare for your next session.
So, should you cut carbs when trying to lose weight? How much should you eat, and when should you eat them to support your body composition goals without compromising training performance?
During digestion, carbohydrates are broken down into glucose, which the body uses for energy. Glucose that isn't needed immediately can be stored as glycogen in the muscles and liver, ready to be used when energy demands increase.
During exercise, particularly at moderate to high intensities, muscle glycogen is one of the primary fuel sources that allows your muscles to perform effectively.
When carbohydrate intake is too low, glycogen stores may become depleted more quickly. Meanwhile, the liver has to use its own limited glycogen stores to keep blood glucose stable for the brain.
As a result, your muscles run low on the fuel they need to sustain repeated high-intensity efforts.
This is why you may feel fatigued earlier, struggle to maintain intensity, or notice a drop in performance when your carbohydrate intake isn't sufficient to support your training demands.
Reducing carbohydrate intake isn't necessarily a problem. Depending on your goals and dietary approach, adjusting the amount you consume can be appropriate. However, if you train regularly while significantly restricting carbohydrates, both your performance and recovery may suffer.
Here are some potential effects of inadequate carbohydrate intake:
Earlier fatigue: You may feel low on energy or hit a wall sooner during your workout, particularly during high-intensity exercise.
Reduced performance and strength: You might still complete your session, but struggle to maintain your usual weights, pace, or number of repetitions.
Slower recovery: Carbohydrates play a key role in replenishing glycogen stores after exercise. When intake is insufficient, glycogen restoration may be compromised, especially if you train frequently.
Difficulty maintaining muscle mass: When overall energy intake remains too low for an extended period, maintaining training performance and muscle mass can become more challenging. Losing weight doesn't mean you need to eliminate an entire macronutrient group.
That said, this doesn't mean more carbohydrates are always better. What matters is consuming an amount that matches your individual needs and activity level.
Rather than viewing carbohydrates as something to avoid, think of them as a tool to support your performance.
A simple way to start is to time your carbohydrate intake around your workouts: before training to fuel your session, and afterward to support recovery.
15–30 MINUTES BEFORE TRAINING
If you're short on time, choose easily digestible carbohydrates that are low in fat and fibre to minimise digestive discomfort.
For example, a banana or a slice of white bread can be a convenient option.
At this point, you don't need a full meal. A small carbohydrate-rich snack can provide some additional energy without leaving you feeling overly full.
1–2 HOURS BEFORE TRAINING
If you have more time, you can have a light snack or a full meal.
Choose carbohydrate sources that provide sustained energy, and consider pairing them with protein. Keeping fat and fibre at moderate levels can also help make your meal easier to digest before exercise.
For example, rice, sweet potatoes, oats, or wholegrain bread paired with chicken, fish, or eggs.
Once your workout ends, your body begins the recovery process. Carbohydrates help replenish glycogen stores, which is especially important after a long or demanding session, or if you have another workout scheduled within the next few hours.
A post-workout meal doesn't need to be complicated. It could be as simple as rice with chicken, fish, or eggs and vegetables, or yoghurt with fruit and an additional source of protein.
If your next workout isn't until much later or the following day, there's no need to stress too much about hitting a specific post-workout "anabolic window."
What matters more is getting enough carbohydrates, protein, and total energy throughout the day to support your training and recovery.
There is no single carbohydrate intake that works for everyone. Your individual needs depend on several factors, including:
Someone who trains three times a week will need a different amount of carbohydrates than someone doing Hybrid Training five or six days a week.
Rather than following a restrictive, one-size-fits-all approach, start by paying attention to how your body feels and performs.
Ask yourself:
These signals can help you better understand your body's needs and make informed adjustments to your nutrition.
Ultimately, nutrition should support your training, not become a set of rigid rules that are difficult to maintain in the long run.
If you have an underlying medical condition, such as diabetes, or follow a medically prescribed diet, consult your doctor or a qualified dietitian before making significant changes to your carbohydrate intake.
