Leena Watts
High-Intensity Interval Training (HIIT) is an incredibly popular workout style, alternating between bursts of high-intensity activity and slower-paced recovery periods. To get the most out of these intense training sessions, it's crucial to fuel your body with the right nutrition. The type of food you eat before a HIIT workout can have a significant impact on your energy levels, performance, and recovery. If you're following a keto diet, your pre-workout meal should typically be high in healthy fats, moderate in protein, and low in carbs. However, some people on keto may benefit from a targeted ketogenic diet (TKD), which involves consuming a small amount of fast-digesting carbs before working out. Ultimately, the best pre-workout meal depends on your body's unique needs and preferences.
| Characteristics | Values |
|---|---|
| Timing | Eat 30 minutes to three hours before exercise. Fine-tune this window according to your body. |
| Macronutrients | High in healthy fats, moderate in protein, and low in carbs. |
| Examples | Spinach and cheese omelet cooked in olive oil, grilled chicken with veggies, Greek yogurt with berries and oats, chocolate milk, salted nuts, bananas, etc. |
| Other tips | Stay hydrated. Consider using branched-chain amino acids (BCAAs) and supplements with amino acids, caffeine, and creatine. |
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What You'll Learn
- Pre-workout meals should be balanced, with carbs, protein, and healthy fats
- Eat 2-3 hours before HIIT for a full meal, or 1-2 hours before for a snack
- If you're new to keto, consider a targeted ketogenic diet with fast-digesting carbs
- Avoid fasting before HIIT—it can cause sluggishness, dizziness, and nausea
- Post-workout, eat a recovery meal with protein and healthy carbs, like a protein shake
Pre-workout meals should be balanced, with carbs, protein, and healthy fats
Pre-workout meals are essential for high-intensity interval training (HIIT) sessions. Not eating enough before a workout can cause you to crash and burn, leaving you sluggish, tired, and unable to perform at your peak. If you're working out on an empty stomach, you might even be at risk of injury.
When deciding what to eat before a workout, it's important to pay attention to your body's specific needs. Everyone's body is different, and you should listen to what feels best for you. Some people can eat right before a workout, while others need more time to digest. Generally, it's recommended to eat a balanced meal two to three hours before a HIIT workout. If you don't have time for a full meal, a carb-focused snack within the hour before your workout can provide quick-digesting fuel.
If you're following a keto diet, your pre-workout meal should typically be high in healthy fats, moderate in protein, and low in carbs. However, if you're new to keto or lacking energy during your workouts, you might benefit from a targeted ketogenic diet (TKD). This involves consuming a small amount of fast-digesting carbs before your workout. For example, you could try a smoothie, a piece of fruit, or half a peanut butter and jelly sandwich.
To ensure your body is adequately fuelled, your pre-workout meal should include a balance of macronutrients: carbohydrates, protein, and healthy fats. This combination will provide you with sustained energy and support muscle building and recovery. Examples of balanced pre-workout meals include baked sweet potato, chicken breast, and avocado-walnut salad, or grilled chicken with veggies. If you're short on time, a protein shake or a piece of fruit can be a quick and easily digestible snack.
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Eat 2-3 hours before HIIT for a full meal, or 1-2 hours before for a snack
The timing of your pre-workout meal or snack is crucial to ensure you have enough energy to sustain a HIIT workout. As a general rule, it is recommended to eat a full meal 2-3 hours before your HIIT workout and a snack 1-2 hours before. This gives your body enough time to digest the food and absorb the nutrients needed for optimal performance.
If you are on a keto diet, your pre-workout meal should typically be high in healthy fats, moderate in protein, and low in carbs. For example, you could have a spinach and cheese omelette cooked in olive oil. This meal adheres to the typical macronutrient ratios of a keto diet while providing your body with the fuel it needs for an intense HIIT session.
If you are new to keto or find yourself lacking energy during workouts, you may benefit from a targeted ketogenic diet (TKD). This involves consuming a small amount of fast-digesting carbs before your workout. For example, you could have a piece of fruit or a protein shake with a banana. These easily digestible snacks will provide a quick source of energy to power you through your HIIT workout.
It is important to listen to your body and experiment with different foods and timings to see what works best for you. Some people may prefer to eat closer to their workout, while others may need a longer window to digest their food comfortably. Ultimately, the key is to ensure you are adequately fuelled to optimise your HIIT performance and avoid injury.
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If you're new to keto, consider a targeted ketogenic diet with fast-digesting carbs
If you're new to keto, you may find it challenging to maintain your energy levels during HIIT workouts. This is because the keto diet involves limiting your body's primary source of fuel, namely carbohydrates. As such, you might want to consider a targeted ketogenic diet (TKD), which involves consuming a small number of fast-digesting carbs before, during, or after your workout.
The TKD is a variation of the standard ketogenic diet, with the key difference being the timing of carb consumption. On the standard keto diet, you keep carbs low at all times. In contrast, the TKD allows you to consume carbs strategically around your workouts. This can provide your body with a quick source of energy, which is especially beneficial for high-intensity exercises like HIIT.
The recommended amount of fast-absorbing carbs to consume on a TKD is 15-50 grams. These carbs can come in the form of powder (dextrose) or real food (glucose). Good sources of glucose include white potatoes or white rice. It's important to note that the effectiveness of carbs depends on the individual, the type of exercise, and the type of carbohydrate.
By consuming carbs before a workout, you can give yourself an energy boost, which can help with building muscle and burning fat. However, it's important to be mindful that consuming carbs will temporarily take you out of ketosis. To minimize this effect, it's recommended to engage in high-intensity or duration workouts, as this will help you get back into a state of ketosis more quickly.
In addition to carbs, there are other strategies to optimize your pre-workout nutrition on a keto diet. For example, you can include protein and healthy fats in your pre-workout meals. Experimenting with different foods and timings can help you determine what works best for your body. Remember, everyone's body is unique, and it's important to listen to your body and do what feels best for you.
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Avoid fasting before HIIT—it can cause sluggishness, dizziness, and nausea
High-Intensity Interval Training (HIIT) is an intense full-body workout. To ensure your body can keep up with the demanding pace, it's important to fuel up with the right pre-workout nutrition.
Fasted HIIT training can be detrimental to your fitness goals and overall health. Fasting raises stress hormones in the body, and if you're already stressed, adding dietary stress can be detrimental. Fasted exercise can cause your body to enter a state of hypoglycaemia, where your brain and body run out of their preferred fuel source. This can lead to feelings of sluggishness, dizziness, nausea, and fatigue. Pushing your body too hard without adequate fuel can even result in injuries.
If you're working out in the morning, your body's glycogen stores (glucose/sugar reserves) are already depleted from your overnight fast. While this theoretically forces your body to burn fat for energy, it can leave you feeling sluggish and unmotivated. To avoid this, ensure you eat a pre-workout meal or snack to achieve peak performance. If you're on a keto diet, a small meal with protein, healthy fats, and some carbs can provide a quick source of energy. Examples include a spinach and cheese omelette cooked in olive oil, a smoothie, or a protein shake with fruit.
Remember, everyone's body is unique, so it's important to listen to your body and experiment with different foods and timings to see what works best for you.
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Post-workout, eat a recovery meal with protein and healthy carbs, like a protein shake
High-Intensity Interval Training (HIIT) is an intense full-body workout. To ensure you're getting the most out of your workout, it's crucial to fuel your body with the right nutrition. This means eating a balanced meal with carbohydrates, protein, and healthy fats a few hours before your workout. For those on a keto diet, a pre-workout meal typically consists of healthy fats, moderate protein, and low carbs. For instance, you could have a spinach and cheese omelette cooked in olive oil.
However, if you're new to keto or feel low on energy during your workouts, you might benefit from a targeted ketogenic diet (TKD). This involves consuming a small amount of fast-digesting carbs before your workout. Additionally, staying hydrated and supplementing with branched-chain amino acids (BCAAs) can help protect your muscles during HIIT.
Post-workout, it's essential to replenish your body with a recovery meal or snack containing protein and healthy carbohydrates. This could be a protein bar, protein shake, or a balanced meal, depending on your preference and timing. For instance, a protein shake with a piece of fruit is an excellent way to refuel your body and support muscle recovery.
Remember, everyone's body is unique, and there is no one-size-fits-all approach to pre and post-workout nutrition. Experiment with different foods, timings, and amounts to see what works best for you. Listen to your body and make adjustments as needed to optimise your HIIT workout performance and recovery.
By prioritising your nutrition and listening to your body's needs, you'll be able to fuel your body effectively and achieve your fitness goals while doing HIIT on a keto diet.
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Frequently asked questions
A keto-friendly pre-workout meal should be high in healthy fats, moderate in protein, and low in carbs. For example, you could have a spinach and cheese omelette cooked in olive oil.
It is recommended to eat a balanced meal two to three hours before your HIIT workout. If you are short on time, you can have a high-carb snack, such as a banana or a fruit smoothie, about an hour before your workout.
Some keto-friendly pre-workout snacks include veggies and hummus, smoothies, homemade trail mix, or a protein shake.
Once your body is fully adapted to ketosis, it becomes efficient at using fat for energy. This means that you can still perform high-intensity workouts without relying on carbohydrates for fuel.
