What Should You Eat Before and After Exercise? A Sports Dietitian's Guide
- Jun 5
- 3 min read
Updated: 4 days ago
Whether you're training for a marathon, attending regular gym sessions, cycling at weekends, playing football, or simply trying to improve your fitness, what you eat before and after exercise can have a significant impact on your performance, recovery, and results.
As a Sports Dietitian in Cheshire, one of the most common questions I hear is:
"What should I actually eat before and after exercise?"
The answer depends on the type of exercise you're doing, how long you're exercising for, and your individual goals.
However, there are some evidence-based principles that can help most people fuel their training more effectively.
Why Nutrition Matters for Exercise Performance
Many people focus heavily on their training plan but pay very little attention to their nutrition.
Unfortunately, this can lead to:
Poor performance
Low energy levels
Slower recovery
Increased risk of injury
Reduced muscle growth
Difficulty achieving weight loss goals
Good sports nutrition helps your body perform at its best and recover properly between training sessions.
What Should You Eat Before Exercise?
The purpose of your pre-exercise meal or snack is to:
Provide energy
Support performance
Reduce fatigue
Maintain blood glucose levels
2-4 Hours Before Exercise
Aim for a balanced meal containing:
Carbohydrates
Lean protein
Fluids
Examples include:
Porridge with berries and Greek yoghurt
Chicken and rice
Jacket potato with tuna
Wholemeal toast with eggs
Carbohydrates are particularly important because they provide your muscles with a readily available source of energy.
30-60 Minutes Before Exercise
If needed, choose a lighter snack such as:
Banana
Rice cakes
Small yoghurt
Toast with jam
Fruit smoothie
The goal is to top up energy stores without causing digestive discomfort.
What Should You Eat After Exercise?
Recovery nutrition is just as important as pre-exercise nutrition.
Following exercise, your body needs nutrients to:
Repair muscle tissue
Replenish glycogen stores
Support adaptation to training
Prepare for your next session
Protein for Recovery
Protein plays a key role in muscle repair and recovery.
Good options include:
Greek yoghurt
Eggs
Chicken
Fish
Milk
Protein-rich snacks
Most active adults benefit from including protein within a few hours of exercise.
Carbohydrates for Refuelling
Carbohydrates help replenish glycogen stores that have been used during exercise.
Examples include:
Rice
Potatoes
Pasta
Oats
Bread
Fruit
For longer or more intense sessions, carbohydrate replacement becomes increasingly important.
Don't Forget Hydration
Even mild dehydration can negatively affect performance.
Signs of dehydration include:
Headaches
Fatigue
Reduced concentration
Poor performance
Aim to drink regularly throughout the day and replace fluids lost during exercise.
For most recreational exercisers, water is sufficient.
Common Sports Nutrition Mistakes
Training Fasted Without a Purpose
Many people exercise on an empty stomach believing it will increase fat loss.
However, for many individuals this can reduce performance, increase fatigue, and negatively affect recovery.
Not Eating Enough Protein
Protein is essential for muscle maintenance and recovery.
Many active adults significantly underestimate how much protein they require.
Skipping Recovery Nutrition
Missing meals after exercise can compromise recovery and make it harder to perform well in future sessions.
Copying Athletes on Social Media
Elite athletes have very different nutritional requirements from recreational exercisers.
What works for them may not be appropriate for you.
Do You Need a Personalised Sports Nutrition Plan?
The answer depends on your goals.
If you're:
Training regularly
Preparing for an event
Looking to improve performance
Trying to build muscle
Struggling with recovery
Trying to lose weight while remaining active
then personalised advice can make a significant difference.
There is no one-size-fits-all approach to sports nutrition.
Your nutrition should be tailored to your training, lifestyle, preferences, and goals.
Sports Nutrition Support in Cheshire
As a Registered Dietitian providing sports nutrition support in Cheshire, I help people fuel their training more effectively, improve recovery, optimise performance, and achieve sustainable results.
Whether you're a runner, cyclist, gym-goer, team sport athlete, or simply someone wanting to get more from their exercise routine, personalised nutrition advice can help you train smarter.
Ready to Improve Your Performance?
If you're unsure whether you're eating the right foods before and after exercise, or you're training hard but not seeing the results you'd expect, I'd be happy to help.
Need support with your health?
Not sure how we can help?
References
British Dietetic Association (BDA) Sport and Exercise Nutrition Factsheets.
Thomas DT, Erdman KA, Burke LM. Position of the Academy of Nutrition and Dietetics, Dietitians of Canada, and the American College of Sports Medicine: Nutrition and Athletic Performance. Medicine & Science in Sports & Exercise.
NHS Eatwell Guide.
British Nutrition Foundation: Hydration and Exercise Guidance.
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