Optimum Nutrition Essential Amino Energy Watermelon

Common questions

Is Optimum Nutrition Essential Amino Energy Watermelon healthy?

Optimum Nutrition Essential Amino Energy Watermelon scores 62/100 on Scout's independent analysis of ingredients, additives, and lab results — a fair-to-good score — solid, with tradeoffs. This energy drink contains a blend of amino acids and beta-alanine, which are beneficial for energy and performance.

How processed is Optimum Nutrition Essential Amino Energy Watermelon?

Optimum Nutrition Essential Amino Energy Watermelon is NOVA Group 3: Processed Foods.

Which ingredients drive Optimum Nutrition Essential Amino Energy Watermelon's score?

In Scout's ingredient-by-ingredient analysis, Beta-Alanine counts in its favor; Natural And Artificial Flavor, Sucralose, Sunflower And/Or Soy Lecithin are flagged as ingredients of concern. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Optimum Nutrition Essential Amino Energy Watermelon

Optimum Nutrition
62 Fair

Analysis updated August 2026 · How Scout scores

$44.99 · 1.29 lb · $2.18 / ounce
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At a glance

Beneficial ingredients 1
Harmful ingredients 3
Owned by Glanbia
Category Energy Drinks
Summary

This energy drink contains a blend of amino acids and beta-alanine, which are beneficial for energy and performance. However, it includes sucralose, an artificial sweetener with potential negative effects on gut health, and natural and artificial flavors, which lack transparency. The presence of processed lecithins and a gum blend also contributes to its moderate processing level, impacting the overall score.

Key ingredients 24

Beta-Alanine
Good

Beneficial ingredient — whole-food or functional value in this product class.

Risks

May cause tingling sensations in high doses.

Benefits

Can enhance exercise performance by buffering muscle acid.

See more about Beta-Alanine →
Micronized Taurine
Neutral

Taurine is an amino acid that supports cardiovascular health and muscle function. It is often included in energy drinks for its potential to enhance exercise performance. However, its benefits are not universally agreed upon, and it is generally considered neutral in moderate amounts.

Benefits

May support cardiovascular health and improve exercise performance.

Micronized L-Glutamine
Neutral

L-Glutamine is an amino acid that plays a role in muscle recovery and immune function. It is commonly used in supplements for its potential to aid in recovery post-exercise. However, its effectiveness in energy drinks is not well-established.

Benefits

May aid in muscle recovery and support immune function.

Micronized L-Arginine
Neutral

L-Arginine is an amino acid that can improve blood flow and is often used in pre-workout supplements. It is included for its potential to enhance exercise performance. However, its benefits in energy drinks are not conclusively proven.

Benefits

May improve blood flow and enhance exercise performance.

Micronized L-Leucine
Neutral

L-Leucine is a branched-chain amino acid important for muscle protein synthesis. It is included in supplements for its role in muscle building and recovery. Its presence in energy drinks is generally neutral as it does not directly contribute to energy.

Benefits

Supports muscle protein synthesis and recovery.

Micronized L-Citrulline
Neutral

L-Citrulline is an amino acid that may improve blood flow and reduce muscle fatigue. It is often included in supplements for its potential performance benefits. Its role in energy drinks is neutral as it does not directly provide energy.

Benefits

May improve blood flow and reduce muscle fatigue.

Micronized L-Isoleucine
Neutral

L-Isoleucine is a branched-chain amino acid involved in muscle metabolism. It is included in supplements for its potential to support muscle recovery. Its presence in energy drinks is neutral as it does not directly contribute to energy.

Benefits

Supports muscle metabolism and recovery.

Micronized L-Valine
Neutral

L-Valine is a branched-chain amino acid that supports muscle growth and repair. It is included in supplements for its role in muscle recovery. Its inclusion in energy drinks is neutral as it does not directly provide energy.

Benefits

Supports muscle growth and repair.

Micronized L-Tyrosine
Neutral

L-Tyrosine is an amino acid that may improve mental performance under stress. It is included in supplements for its potential cognitive benefits. Its role in energy drinks is neutral as it does not directly provide energy.

Benefits

May improve mental performance under stress.

Micronized L-Histidine
Neutral

L-Histidine is an amino acid involved in the production of histamine and hemoglobin. It is included in supplements for its role in various metabolic processes. Its presence in energy drinks is neutral as it does not directly contribute to energy.

Benefits

Involved in the production of histamine and hemoglobin.

Micronized L-Lysine
Neutral

L-Lysine is an essential amino acid important for protein synthesis and immune function. It is included in supplements for its role in supporting overall health. Its inclusion in energy drinks is neutral as it does not directly provide energy.

Benefits

Important for protein synthesis and immune function.

Micronized L-Phenylalanine
Neutral

L-Phenylalanine is an amino acid that can be converted into neurotransmitters. It is included in supplements for its potential cognitive benefits. Its role in energy drinks is neutral as it does not directly provide energy.

Benefits

Can be converted into neurotransmitters, supporting cognitive function.

Micronized L-Threonine
Neutral

L-Threonine is an essential amino acid involved in protein synthesis and immune function. It is included in supplements for its role in supporting overall health. Its presence in energy drinks is neutral as it does not directly contribute to energy.

Benefits

Involved in protein synthesis and immune function.

Micronized L-Methionine
Neutral

L-Methionine is an essential amino acid important for metabolism and detoxification. It is included in supplements for its role in supporting overall health. Its inclusion in energy drinks is neutral as it does not directly provide energy.

Benefits

Important for metabolism and detoxification.

Citric Acid
Neutral

Citric acid is a natural acid used as a preservative and flavor enhancer. It is commonly found in citrus fruits and is generally recognized as safe. Its inclusion in energy drinks is neutral as it does not directly contribute to energy.

Risks

Excessive consumption may cause dental erosion.

Benefits

Acts as a preservative and enhances flavor.

See more about Citric Acid →
Malic Acid
Neutral

Malic acid is a natural acid found in fruits, used to enhance flavor and acidity. It is generally recognized as safe and is commonly used in food products. Its presence in energy drinks is neutral as it does not directly provide energy.

Benefits

Enhances flavor and acidity in beverages.

See more about Malic Acid →
Tartaric Acid
Neutral

Tartaric acid is a natural acid found in grapes, used to enhance flavor and acidity. It is generally recognized as safe and is commonly used in food products. Its presence in energy drinks is neutral as it does not directly provide energy.

Benefits

Enhances flavor and acidity in beverages.

See more about Tartaric Acid →
Silicon Dioxide
Neutral

Silicon dioxide is used as an anti-caking agent to prevent clumping in powdered products. It is generally recognized as safe and is commonly used in food products. Its presence in energy drinks is neutral as it does not directly provide energy.

Benefits

Prevents clumping and maintains product consistency.

See more about Silicon Dioxide →
Calcium Silicate
Neutral

Calcium silicate is used as an anti-caking agent to prevent clumping in powdered products. It is generally recognized as safe and is commonly used in food products. Its presence in energy drinks is neutral as it does not directly provide energy.

Benefits

Prevents clumping and maintains product consistency.

See more about Calcium Silicate →
Gum Blend
Neutral

The gum blend, including cellulose gum, xanthan gum, and carrageenan, is used as a thickener and stabilizer. These gums are generally recognized as safe but can cause digestive issues in sensitive individuals. Their presence in energy drinks is neutral as they do not directly provide energy.

Risks

May cause digestive issues in sensitive individuals.

Benefits

Stabilizes and thickens the product.

See more about Gum Blend →
Beet Juice Powder
Neutral

Beet juice powder is used for natural coloring and may provide some antioxidants. It is a natural ingredient but is present in small amounts primarily for color. Its presence in energy drinks is neutral as it does not directly provide energy.

Benefits

Provides natural coloring and may offer antioxidants.

Natural And Artificial Flavor
Bad

Natural and artificial flavors are used to enhance taste but lack transparency in their composition. They can contain a variety of chemicals, some of which may not be disclosed. This lack of transparency and potential for synthetic additives makes them a concern.

Risks

May contain undisclosed synthetic chemicals and allergens.

See more about Natural And Artificial Flavor →
Sucralose
Bad

Sucralose is an artificial sweetener used to provide sweetness without calories. It is controversial due to potential negative effects on gut health and metabolism. Its artificial nature and potential health concerns make it a negative ingredient.

Risks

May negatively affect gut health and metabolism.

Benefits

Provides sweetness without adding calories.

See more about Sucralose →
Sunflower And/Or Soy Lecithin
Bad

Lecithins are used as emulsifiers to improve texture and mixability. While they are not as harmful as seed oils, they are processed and can contain allergens. Their processed nature and potential allergenicity make them a concern.

Risks

May contain allergens and is a processed ingredient.

Benefits

Improves texture and mixability of the product.

Processing

Group 3 · Processed

Processed Foods

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