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Is an RXBAR a Good Pre-Workout?

3 min read

According to sports nutrition experts, the ideal pre-workout snack combines carbohydrates for quick energy and protein for muscle support. For many, a simple, whole-food option like an RXBAR seems like a perfect fit, but the timing and personal tolerance are critical for optimal performance. This article breaks down whether an RXBAR is a suitable choice to power your next gym session.

Quick Summary

An RXBAR can be an effective pre-workout snack, offering simple ingredients like dates and nuts for a mix of carbohydrates and protein. Its effectiveness depends on individual digestive tolerance and timing, with the chewy texture potentially causing stomach upset if eaten too close to exercise. Consider personal needs and timing to determine if it's the right fuel for you.

Key Points

  • Balanced Macronutrients: RXBARs contain carbohydrates from dates for energy, protein from egg whites for muscle support, and fats from nuts for satiety, providing a balanced fuel source.

  • Requires Digestions Time: The dense, whole-food nature of an RXBAR means it requires 60–90 minutes for proper digestion before a workout to avoid stomach discomfort.

  • Sustained Energy: The fiber and fat in an RXBAR slow the absorption of natural sugars, providing more sustained energy rather than a quick spike and crash.

  • Convenient & Natural Alternative: For those seeking a natural, on-the-go fuel source without artificial ingredients, an RXBAR is a great option compared to processed supplements.

  • Consider Intensity: For high-intensity workouts, the dense texture may not be ideal if eaten too close to exercise, but for moderate or longer endurance sessions, it's a very suitable option.

In This Article

Understanding RXBARs as Pre-Workout Fuel

RXBARs are known for their simple, clean ingredient list, typically consisting of egg whites for protein, dates for carbohydrates, and nuts for healthy fats and texture. This combination of macronutrients is exactly what's needed for effective exercise fuel, but the whole-food nature of the bar means considering how your body will process it during physical activity. The key lies in understanding the balance of fast-acting versus sustained energy.

The Macronutrient Breakdown

The primary energy source in an RXBAR comes from dates, which provide natural sugars (simple carbohydrates) for a rapid energy boost. However, the dates are paired with dietary fiber and fats from the nuts, which slows down the digestion and absorption of the sugars. This creates a more sustained energy release, preventing the sharp spike and crash associated with highly processed sugary snacks. The protein from the egg whites and nuts also contributes to muscle support and a feeling of fullness.

Digestion and Timing Are Key

One of the main considerations for using an RXBAR as a pre-workout is its digestibility. Its whole-food, chewy, and dense nature means it takes some time to process.

  • For most workouts: Consuming an RXBAR 60–90 minutes beforehand allows for proper digestion and absorption, providing a steady stream of energy during your workout.
  • For sensitive stomachs: If you have a sensitive stomach or are preparing for a high-intensity session, eating it too close to your workout could lead to stomach discomfort or bloating. In these cases, opting for a smaller portion or a more easily digestible option may be best.
  • For longer endurance sessions: The combination of fast and slow-digesting nutrients makes RXBARs a viable option for longer training sessions, like a long run or hike, where a consistent fuel source is needed.

Comparing RXBARs to Other Pre-Workout Options

Feature RXBAR Pre-Workout Powder Whole Foods (Banana & Nut Butter)
Ingredients Whole foods (dates, egg whites, nuts) with no added sugar. Synthetic ingredients, caffeine, creatine, and artificial sweeteners. Fresh ingredients (banana for carbs, nut butter for fat/protein).
Energy Release Balanced mix of simple and complex carbs for sustained energy. Rapid, intense burst of energy due to high stimulant content. Quick energy from banana, balanced by slower-digesting fat from nut butter.
Digestibility Chewy and dense; may cause GI issues for some, especially if eaten too close to a workout. Can cause stomach upset, jitters, and tingling sensations due to stimulants. Generally easy to digest, though fat content can slow absorption.
Portability Highly portable, no mixing required. Requires mixing with water, less convenient for on-the-go. Can be messy; requires some preparation.
Nutrient Balance Offers protein, fiber, and healthy fats alongside carbs. Primarily focuses on stimulants and performance enhancers. Provides natural carbs and a good balance of fat and protein.

Making the Right Choice for Your Workout

Ultimately, whether an RXBAR is a good pre-workout for you depends on your personal needs, digestive sensitivity, and the type of workout you are doing. For a casual or moderate intensity session, consuming one 60-90 minutes ahead of time is likely a great way to get clean, sustained energy. For a high-intensity workout or if you're prone to stomach issues, a more easily digestible source of carbohydrates may be preferable.

How to optimize your RXBAR as a pre-workout

  • Eat it early. Plan to eat your RXBAR about 1 to 2 hours before your workout to give your body ample time to digest the dates and nuts.
  • Pair it with water. Proper hydration is crucial, especially when consuming fiber-dense snacks. Drinking water alongside the bar aids in digestion.
  • Listen to your body. Pay attention to how your body reacts. If you feel sluggish or bloated, you may need to adjust the timing or choose a different pre-workout snack.
  • Consider half a bar. For shorter or lower-intensity workouts, or to minimize the risk of digestive issues, consuming a smaller portion might be all you need.

Conclusion

An RXBAR can certainly serve as a good pre-workout, provided it aligns with your specific workout intensity and timing needs. Its straightforward, whole-food ingredients offer a balanced mix of quick and sustained energy, alongside a valuable dose of protein and fiber. While it lacks the artificial additives found in many pre-workout supplements, its dense texture requires careful timing to avoid digestive discomfort during exercise. By listening to your body and planning your snack strategically, you can effectively use an RXBAR to help fuel your fitness goals.

Related Resources

Frequently Asked Questions

You should aim to eat an RXBAR about 60–90 minutes before your workout to allow for proper digestion and to utilize the energy effectively without causing stomach discomfort.

An RXBAR is best for moderate to long-duration endurance workouts, such as a long run or hike, as it provides a balanced mix of simple and complex carbohydrates for sustained energy.

Yes, for some individuals with sensitive stomachs, the dense and chewy texture of an RXBAR, especially if consumed too close to a workout, can cause bloating or other digestive issues.

This depends on your goal. RXBARs offer balanced, whole-food nutrition for sustained energy, while pre-workout drinks typically provide a rapid, stimulant-driven energy boost. RXBARs are a good choice for longer, more moderate exercise.

The sugar in an RXBAR comes from natural dates, which is absorbed more slowly due to the bar's fiber and fat content. This provides a steady energy release rather than a rapid spike, making it suitable for fueling exercise.

Yes, good alternatives include a banana with a small amount of nut butter, oatmeal, or whole wheat toast with jam, as these also offer a mix of fast and slow-digesting carbs.

An RXBAR can work for both, but its composition of carbs, protein, and fat makes it an excellent option for sustained energy pre-workout. The protein also aids in recovery post-workout.

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.