Metabolic Nutrition ESP Pre-Workout Review: (Terrible)

Written by James C., M.S.(C), PT

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Metabolic Nutrition ESP Pre-Workout

E.S.P. pre-workout's formula, featuring a proprietary blend, keeps the dosages of its ingredients undisclosed. However, it is known that one large scoop contains a substantial 500 mg of caffeine. This lack of transparency suggests potential underdosing in certain components, while the caffeine content is notably excessive, posing potential health risks.

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Metabolic Nutrition’s E.S.P (Energy Stimulant Pre-Workout) is a supplement designed to enhance gym enthusiasts’ performance before a workout by providing increased energy and stamina. As the market for fitness supplements grows increasingly competitive, Metabolic Nutrition positions its ESP pre-workout as a robust formula geared toward those looking to maximize their workout efficiency. Highlighted by a multi-scoop serving system, the product allows users to tailor their intake based on tolerance levels and desired effect, setting it apart in a crowded field of pre-workout options.

One of the defining features of ESP is its high caffeine content, which works to stimulate the central nervous system, delay fatigue, and improve concentration. However, caffeine is but one ingredient in a pre-workout that aims to offer more than just a simple energy boost. The supplement promises to support enhanced mental focus and provide an endurance edge without the common negative side effects associated with pre-workout formulas. While taste and mixability are important considerations for any powder supplement, ESP also earns marks for its palatability, coming in a variety of flavors to cater to different preferences.

Key Takeaways

  • ESP Pre-Workout provides tailored energy levels with a unique dosage system.
  • The product combines high caffeine content with other ingredients for mental focus and endurance.
  • ESP is noted for its good flavors and easy mixability without common pre-workout side effects.

Product Overview

Metabolic Nutrition’s ESP Pre-Workout supplements are formulated to enhance energy and focus during workouts. This section offers a breakdown of the company behind these supplements and the different variants available.

Brand Background

Metabolic Nutrition stands out in the sports nutrition field for its commitment to providing high-quality and effective supplements. With a focus on energy stimulation, their ESP Pre-Workout has been designed for athletes and fitness enthusiasts who require an intensive pre-workout formula. The brand positions itself on meticulous research and scientifically-backed ingredients to help users achieve

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Ingredient Analysis

Metabolic Nutrition ESP Pre-Workout Review

In this section, the focus is on a detailed examination of the key components and additional compounds present in Metabolic Nutrition’s ESP Pre-Workout to understand their roles and potential impact on exercise performance.

Key Ingredients

  • Caffeine: ESP Pre-Workout is known for its high caffeine content. The supplement includes caffeine anhydrous, a pure, powdered version of caffeine that is commonly used for its fast-acting energy-boosting effects, and di-caffeine malate, which combines caffeine and malic acid, purported to buffer the digestive distress commonly associated with caffeine and provide a smoother onset of energy.
  • Beta Alanine: An amino acid that contributes to the production of carnosine in muscles, it may help buffer acid in muscles, which can lead to improved athletic performance and reduced muscular fatigue.
  • Choline Bitartrate: Serves as a precursor to neurotransmitters and is included to support cognitive functions like focus and mind-muscle connection.
  • Theobromine: A compound related to caffeine, it acts as a mild stimulant and vasodilator, which may help with blood flow.

Additional Compounds

  • N-Acetyl-L-Tyrosine: An acetylated form of the amino acid tyrosine that can enhance cognitive function during stress, such as intense workouts.
  • Eria Jarensis: Provides phenylethylamine alkaloids, which are thought to act as central nervous system stimulants to increase energy levels and enhance focus.
  • Vitamins: Often included to support overall health and energy metabolism. For instance, niacin is commonly incorporated for its role in metabolic processes and may support blood flow.
  • Glycerol Gluconate Complex: A combination comprising calcium glycerol gluconate, magnesium glycerol gluconate, potassium glycerol gluconate, and sodium glycerol gluconate is designed to enhance hydration and potentially improve endurance and performance by maintaining fluid balance in the muscle tissue.

ESP Pre-Workout does not include some compounds typically associated with pump, like nitric oxide precursors, which are meant to enhance blood flow and muscle pumps during exercise. Instead, the formula appears to focus primarily on high-stimulant content for energy and cognitive benefits.

Benefits and Effects

Metabolic Nutrition ESP Pre-Workout Review

The ESP Pre-Workout by Metabolic Nutrition is designed to enhance the user’s workout experience by providing a significant energy boost. It employs a high caffeine content, intended to increase alertness and delay fatigue during exercise sessions.

Consumers report improved focus during workouts, allowing them to concentrate better on their exercise routines. This cognitive enhancement is likely due to the inclusion of potent nootropics in the formula, which may support mental clarity.

Strength and endurance may also see potential benefits due to the energizing effects of the pre-workout. However, ESP Pre-Workout does not include specific pump ingredients, which are often desired by those looking to maximize vasodilation and blood flow to the muscles.

The product is noted for offering a consistent stream of energy without leading to a crash post-workout. This steadiness in energy levels is particularly appreciated by users who engage in longer training sessions.

Some users might experience a rapid heartbeat due to the stimulant nature of the product. This underscores the importance of individual tolerance assessment, as recommended by the manufacturer. Anyone considering this supplement should start with a lower dose to gauge their body’s reaction.

  • Energy: High-caffeine content for increased alertness.
  • Focus: Contains nootropics for improved mental clarity.
  • Strength & Endurance: Energizing effects can indirectly aid performance.
  • No Crash: Formulated to avoid energy dips after workouts.
  • Pump: Lacks specific ingredients for vasodilation.
  • Rapid Heartbeat: Possible effect, underscoring the need for proper dosing.

Taste and Mixability

Metabolic Nutrition ESP Pre-Workout Review

In assessing a pre-workout like Metabolic Nutrition’s ESP, flavor and mixability are key factors that determine its practicality and appeal. They influence a user’s experience and commitment to regular use.

Flavor Profiles

ESP Pre-Workout is available in a variety of flavors, including a well-received Watermelon option and a Green Apple variant, which speaks of the brand’s understanding that taste is a significant part of the pre-workout experience. Specific reviews note the fruitiness and appeal of the flavors, with particular mentions of the sweetness and authenticity. The Fruit Punch flavor is another addition to the lineup, often a staple in the industry for its universally pleasant taste.

Texture and Solubility

Metabolic Nutrition has designed ESP Pre-Workout to mix well with water, resulting in a smooth texture that is easy to consume. The product avoids the graininess that can be off-putting in other supplements. Users report that it dissolves efficiently, leaving no residue or clumps, which is indicative of its high-quality formulation and attention to detail in production. This factor is critical because it directly affects the user’s convenience and the likelihood of making ESP a regular part of their fitness routine.

Potential Side Effects

Metabolic Nutrition ESP Pre-Workout Review

When consuming Metabolic Nutrition’s ESP Pre-Workout, individuals may experience a range of potential side effects. Due to its high caffeine content, typical reactions include:

  • Rapid Heartbeat: An increase in heart rate is common.
  • Blood Pressure Fluctuations: Both high and low blood pressure incidences may occur.
  • Insomnia: Difficulty falling asleep, often due to stimulant effects.

Less common but serious side effects might include:

  • Cardiac Arrhythmia: Irregular heartbeats can be a serious issue.
  • Stroke: High stimulant intake can lead to increased risk of stroke.
  • Mental health impact: Psychiatric issues such as anxiety and jitteriness.
  • Seizure Disorder: Those with a history of seizures should exercise caution.
  • Tolerance: Over time, the body may become less responsive, necessitating higher doses.

Individuals with the following conditions should consult with a healthcare professional before use:

  • Heart, kidney, liver, or thyroid disease
  • Diabetes
  • Prostate inflammation
  • Pre-existing sensitivity to stimulants
  • Allergies

In rare cases, severe side effects such as:

  • Severe Headache
  • Dizziness
  • Shortness of Breath

Those experiencing adverse health effects should discontinue use immediately and seek medical attention if symptoms persist. It’s also advised to adhere strictly to the recommended dosage on the product’s label to mitigate potential side effects.

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Usage and Recommendations

This section provides insights into the proper use of Metabolic Nutrition ESP Pre-Workout and offers recommendations to ensure safety and effectiveness when incorporating the supplement into your workout routine.

Dosage Guidelines

Metabolic Nutrition ESP Pre-Workout is designed with a multi-scoop dosage system, allowing users to tailor their intake to individual tolerance levels and energy requirements. For new users, it’s recommended to start with one scoop to assess tolerance. The maximum dose should not exceed three scoops in any 24-hour period. Individuals should be aware that high doses of stimulants may cause nervousness, irritability, and sleeplessness.

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User Categories

Not all users should take ESP Pre-Workout. Individuals with medical conditions, those taking prescription or over-the-counter medicine, pregnant or nursing women, and anyone planning surgery should consult a health care professional before use. ESP is a stimulant-based pre-workout and is not a weight-loss supplement; therefore, it should not be used as such.

Maximize Effectiveness

To enhance performance, focus, and energy during workouts, ESP should be taken 30 minutes before strength training or endurance activities. Avoid taking with other sources of caffeine to prevent the risk of adverse reactions. Users seeking an intense workout may aim for a stronger dose, but should not exceed the maximum recommended amount. For those sensitive to stimulants, a stimulant-free option may be more appropriate to avoid compromising blood flow and to minimize the potential for adverse reactions.

Comparative Analysis

In evaluating the Metabolic Nutrition ESP Pre-Workout supplement, it is important to compare it with similar products in terms of ingredients, benefits, and disadvantages. This provides users with a clear understanding of where it stands in the competitive landscape of pre-workout supplements.

Similar Products

  • C4 Original by Cellucor:

    • Ingredients: Includes creatine nitrate and arginine AKG for pump.
    • Energy release: Contains 150mg of caffeine per serving, less than Metabolic Nutrition ESP.
  • Mr. Hyde NitroX by ProSupps:

    • Ingredients: Features a powerful formula with creatine, beta-alanine, and a high caffeine content.
    • Energy release: Known for extreme energy provision, comparable to Metabolic Nutrition ESP.
  • The Curse by Cobra Labs:

    • Ingredients: Has a simpler formula including caffeine and beta-alanine.
    • Stimulant free: Does not contain stimulants like methyl pentane citrate HCl found in ESP.
  • N.O.-XPLODE by BSN:

    • Ingredients: A blend of creatine, beta-alanine, and electrolytes for performance.
    • Energy release: Offers a balanced energy boost without an extreme stimulant level.

Pros vs. Cons

  • Pros:

    • High-energy formula: ESP provides an intense energy boost, ideal for those seeking extreme energy release.
    • Customizable dosages: Multi-scoop system allows users to control the quantity of stimulants ingested.
    • Unique Ingredients: Contains ingredients like methyl pentane citrate HCl, a powerful stimulant.
  • Cons:

    • Lack of transparency: Proprietary blends make it difficult to assess the amount of each ingredient.
    • Intensity: The high caffeine content may be overwhelming for some users.
    • Pump Ingredients: The absence of pump-promoting components may be seen as a downside for those who prioritize them.

When considering ESP by Metabolic Nutrition, users should weigh the high-energy benefits it provides against the sheer intensity of its stimulant content and the lack of certain performance enhancers like electrolytes for hydration.

Consumer Insights

Taste: Consumers generally find the flavors of ESP Pre-Workout by Metabolic Nutrition palatable, with options such as Blue Raspberry mentioned often. Taste preferences are subjective, but overall satisfaction with the taste is evident from customer feedback.

Concentration & Focus: The product is designed to enhance mental clarity. Users report experiencing an uptick in focus during workouts, which they attribute to the supplement’s formulation aimed at improving cognitive functions.

Energy: Metabolic Nutrition’s ESP Pre-Workout is noted for its high caffeine content, which translates to a significant boost in energy levels. Multiple reviews suggest that the energy provided helps users power through intensive workouts.

Dosage Flexibility: ESP is unique in its multi-scoop serving system, allowing users to tailor the dosage to their tolerance and energy needs. This flexibility is positively received, as it accommodates varying sensitivities to stimulants.

  • Energy: Generally amplified
  • Taste: Broadly appealing
  • Concentration: Notably enhanced
  • Focus: Consistently improved

Feedback on the absence of pump ingredients is mixed. While some users show a preference for pre-workout supplements that include pump inducers, others do not regard their absence as a drawback, focusing instead on the energy and focus benefits provided by ESP.

Table 1: Consumer Feedback Overview

AspectFeedback Summary
TastePositive; good flavor variety
ConcentrationIncreased; as expected
FocusSharpened; users report improved focus
EnergyHigh; major energy boost reported

Users are advised to start with a smaller dose to assess tolerance before moving on to increased servings, as suggested by the manufacturer. This is largely appreciated by consumers, who note the importance of customizing intake to avoid potential overstimulation.

Final Thoughts

The ESP Pre-Workout by Metabolic Nutrition has been reviewed by users as a potent energy enhancer, designed to cater to varying levels of stimulant needs for workouts. With a no-nonsense formula, this supplement delivers on its promised benefits, offering a significant boost to both energy levels and focus, which is crucial for those looking to maximize their workout potential.

Users highlight the pre-workout’s flexibility with multiple serving options, allowing for customization depending on the intensity of the exercise and individual caffeine tolerance. A common positive is the product’s ability to provide a sustained energy surge without the common side effects that are typically associated with pre-workouts, such as jitters or crashes.

  • Energy: An effective surge to power through demanding workouts.
  • Focus: Enhanced mental clarity to maintain concentration on exercises.
  • Strength and Endurance: Users have noted improved performance, though individual results may vary.

The presence of potent nootropics in the product’s composition is a thoughtful addition, helping exercisers stay mentally sharp and engaged throughout their routine. Electrolytes have also been included to aid with hydration, which can support endurance during prolonged workouts.

In summary, ESP Pre-Workout seems to be a reliable choice for those looking to heighten their workout experience. It’s important for users to adjust their intake based on personal tolerance and to avoid exceeding the recommended dosage to maintain optimal effects and well-being.

Warnings and Advisories

When considering the use of ESP Extreme Pre-Workout from Metabolic Nutrition, individuals should carefully read label guidelines and heed the product warnings. As with any supplement, the reaction to its components can vary by individual, and certain ingredients may have side effects.

Label Guidelines:

  • Dosage: Users are advised to begin with a smaller dose to assess tolerance. The maximum suggested dosage reaches up to three scoops, but it is crucial to start with one scoop to evaluate the body’s response.
  • Timing: It is recommended to take this pre-workout supplement 15-30 minutes before exercising.


  • Caffeine Content: This pre-workout contains a high level of caffeine—up to 750 mg in a full serving of three scoops. Users should be cautious and avoid other sources of caffeine to prevent potential overstimulation or adverse effects.
  • Avoid if Sensitive: People with caffeine sensitivity or those who are prone to caffeine-related side effects should avoid this product.

Warnings and Side Effects:

  • Potential Overuse: Overuse can lead to jitteriness, insomnia, increased heart rate, and other side effects associated with excessive caffeine intake.
  • Consult Healthcare Providers: Those with pre-existing health conditions, particularly cardiovascular issues, should consult with healthcare professionals before use.
  • Not for All: Pregnant or nursing women and individuals under 18 should not use this product.

It is imperative for users to follow the product guidelines and to pay close attention to their body’s reaction to avoid potential risks associated with high stimulant intake.

Where to Buy

Metabolic Nutrition’s ESP Pre-Workout supplement is available at several retail outlets and online platforms. One can purchase the product from:

  • Amazon: As a popular choice for various consumer goods, Amazon carries the ESP Pre-Workout. Buyers can benefit from user reviews and possibly free shipping if they are Amazon Prime members.
  • Official Metabolic Nutrition Website: For consumers preferring to buy directly from the source, Metabolic Nutrition offers their ESP Pre-Workout for sale on their own website.
  • Specialty Stores: Some physical and online specialty stores focused on sports nutrition also stock ESP Pre-Workout. Availability might vary.

For convenience, here is a brief list of options for potential buyers:

Retail OptionFeatures
AmazonUser reviews, Prime benefits
Metabolic NutritionDirect purchase, brand support
Specialty StoresExpertise in sports nutrition

Consumers should always verify the authenticity of the product regardless of the purchase point to ensure safety and efficacy. Prices and availability are subject to change, and it’s advisable to compare different outlets to find the most suitable offer.

BroScience Verdict
Metabolic Nutrition ESP Pre-Workout

E.S.P. pre-workout's formula, featuring a proprietary blend, keeps the dosages of its ingredients undisclosed. However, it is known that one large scoop contains a substantial 500 mg of caffeine. This lack of transparency suggests potential underdosing in certain components, while the caffeine content is notably excessive, posing potential health risks.

Buy Now Top 3 Alternatives

Frequently Asked Questions

In this section, readers will find information regarding the most common inquiries about ESP pre-workout, addressing its benefits, weight loss potential, uniqueness, and side effects associated with its caffeine content.

What are the key benefits of taking ESP pre-workout?

ESP pre-workout is designed to enhance energy, focus, and endurance. It utilizes stimulants like caffeine anhydrous and di-caffeine malate to promote a sustained energy supply for users during their workouts.

Can ESP pre-workout support weight loss goals, and how?

The high stimulant content in ESP pre-workout may increase metabolism and energy expenditure, which can aid in weight loss when used in conjunction with a proper diet and exercise regimen.

What distinguishes ESP pre-workout from other high-caffeine supplements?

ESP pre-workout stands out due to its multi-scoop dosing system, which allows users to control the intensity of their dose. This tailored approach caters to varying levels of caffeine tolerance and workout intensity needs.

How does ESP pre-workout contribute to strength and endurance during workouts?

The ingredients in ESP pre-workout, including a blend of amino acids and electrolytes, are selected to support muscular performance and hydration, which can lead to improved strength and endurance during physical activity.

What should one consider when choosing a pre-workout like ESP for high-intensity training?

Individuals should consider their caffeine tolerance, the supplement’s ingredient label for any allergens or banned substances, and the timing of consumption to ensure the most effective workout without disrupting sleep patterns.

Are there any potential side effects associated with the high caffeine content in ESP pre-workout?

Potential side effects from the high caffeine content include jitters, insomnia, increased heart rate, and upset stomach. It is advised that users start with a lower dose to assess tolerance and avoid taking the supplement close to bedtime.

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